From c73c44062f07d6e6ffe790197d7e05f49b5dde85 Mon Sep 17 00:00:00 2001
From: Fernando Briano <fernando@picandocodigo.net>
Date: Fri, 10 Oct 2025 16:04:25 +0100
Subject: [PATCH 1/3] [API] Request body was incorrectly marked as not required
 in several APIs.

This commit generates the code for commit 62d200f5597fbf3529686f7ae7063d6b0a77f1cb of
`elasticsearch-specification`, adding the body requirement in these 68 APIs:

`clear_scroll`
`close_point_in_time`
`cluster.allocation_explain`
`cluster.reroute`
`count`
`explain`
`field_caps`
`fleet.search`
`graph.explore`
`index_lifecycle_management.move_to_step`
`index_lifecycle_management.put_lifecycle`
`indices.analyze`
`indices.clone`
`indices.create`
`indices.put_data_lifecycle`
`indices.put_data_stream_options`
`indices.rollover`
`indices.shrink`
`indices.split`
`indices.validate_query`
`inference.completion`
`inference.inference`
`inference.put_ai21`
`inference.put_alibabacloud`
`inference.put_amazonbedrock`
`inference.put_amazonsagemaker`
`inference.put_anthropic`
`inference.put_azureaistudio`
`inference.put_azureopenai`
`inference.put_cohere`
`inference.put_contextualai`
`inference.put_custom`
`inference.put_deepseek`
`inference.put_elasticsearch`
`inference.put_elser`
`inference.put_googleaistudio`
`inference.put_googlevertexai`
`inference.put_hugging_face`
`inference.put_jinaai`
`inference.put_llama`
`inference.put_mistral`
`inference.put_openai`
`inference.put_voyageai`
`inference.put_watsonx`
`inference.rerank`
`inference.sparse_embedding`
`inference.stream_completion`
`inference.text_embedding`
`license.post`
`machine_learning.delete_expired_data`
`machine_learning.flush_job`
`machine_learning.get_buckets`
`machine_learning.get_calendars`
`machine_learning.get_categories`
`machine_learning.get_influencers`
`machine_learning.get_model_snapshots`
`machine_learning.get_overall_buckets`
`machine_learning.get_records`
`machine_learning.revert_model_snapshot`
`machine_learning.start_datafeed`
`open_point_in_time`
`render_search_template`
`scripts_painless_execute`
`scroll`
`search`
`snapshot_lifecycle_management.put_lifecycle`
`terms_enum`
`update_by_query`
---
 .../lib/elasticsearch/api/actions/clear_scroll.rb        | 2 ++
 .../lib/elasticsearch/api/actions/close_point_in_time.rb | 2 ++
 .../api/actions/cluster/allocation_explain.rb            | 9 +++------
 .../lib/elasticsearch/api/actions/cluster/reroute.rb     | 2 ++
 elasticsearch-api/lib/elasticsearch/api/actions/count.rb | 2 ++
 .../lib/elasticsearch/api/actions/explain.rb             | 8 ++------
 .../lib/elasticsearch/api/actions/field_caps.rb          | 9 +++------
 .../lib/elasticsearch/api/actions/fleet/search.rb        | 8 ++------
 .../lib/elasticsearch/api/actions/graph/explore.rb       | 8 ++------
 .../actions/index_lifecycle_management/move_to_step.rb   | 1 +
 .../actions/index_lifecycle_management/put_lifecycle.rb  | 1 +
 .../lib/elasticsearch/api/actions/indices/analyze.rb     | 9 +++------
 .../lib/elasticsearch/api/actions/indices/clone.rb       | 1 +
 .../lib/elasticsearch/api/actions/indices/create.rb      | 1 +
 .../api/actions/indices/put_data_lifecycle.rb            | 1 +
 .../api/actions/indices/put_data_stream_options.rb       | 1 +
 .../lib/elasticsearch/api/actions/indices/rollover.rb    | 1 +
 .../lib/elasticsearch/api/actions/indices/shrink.rb      | 1 +
 .../lib/elasticsearch/api/actions/indices/split.rb       | 1 +
 .../elasticsearch/api/actions/indices/validate_query.rb  | 9 +++------
 .../elasticsearch/api/actions/inference/completion.rb    | 1 +
 .../lib/elasticsearch/api/actions/inference/inference.rb | 1 +
 .../lib/elasticsearch/api/actions/inference/put_ai21.rb  | 1 +
 .../api/actions/inference/put_alibabacloud.rb            | 1 +
 .../api/actions/inference/put_amazonbedrock.rb           | 1 +
 .../api/actions/inference/put_amazonsagemaker.rb         | 1 +
 .../elasticsearch/api/actions/inference/put_anthropic.rb | 1 +
 .../api/actions/inference/put_azureaistudio.rb           | 1 +
 .../api/actions/inference/put_azureopenai.rb             | 1 +
 .../elasticsearch/api/actions/inference/put_cohere.rb    | 1 +
 .../api/actions/inference/put_contextualai.rb            | 1 +
 .../elasticsearch/api/actions/inference/put_custom.rb    | 1 +
 .../elasticsearch/api/actions/inference/put_deepseek.rb  | 1 +
 .../api/actions/inference/put_elasticsearch.rb           | 1 +
 .../lib/elasticsearch/api/actions/inference/put_elser.rb | 1 +
 .../api/actions/inference/put_googleaistudio.rb          | 1 +
 .../api/actions/inference/put_googlevertexai.rb          | 1 +
 .../api/actions/inference/put_hugging_face.rb            | 1 +
 .../elasticsearch/api/actions/inference/put_jinaai.rb    | 1 +
 .../lib/elasticsearch/api/actions/inference/put_llama.rb | 1 +
 .../elasticsearch/api/actions/inference/put_mistral.rb   | 1 +
 .../elasticsearch/api/actions/inference/put_openai.rb    | 1 +
 .../elasticsearch/api/actions/inference/put_voyageai.rb  | 1 +
 .../elasticsearch/api/actions/inference/put_watsonx.rb   | 1 +
 .../lib/elasticsearch/api/actions/inference/rerank.rb    | 1 +
 .../api/actions/inference/sparse_embedding.rb            | 1 +
 .../api/actions/inference/stream_completion.rb           | 1 +
 .../api/actions/inference/text_embedding.rb              | 1 +
 .../lib/elasticsearch/api/actions/license/post.rb        | 2 ++
 .../api/actions/machine_learning/delete_expired_data.rb  | 2 ++
 .../api/actions/machine_learning/flush_job.rb            | 1 +
 .../api/actions/machine_learning/get_buckets.rb          | 8 ++------
 .../api/actions/machine_learning/get_calendars.rb        | 9 +++------
 .../api/actions/machine_learning/get_categories.rb       | 8 ++------
 .../api/actions/machine_learning/get_influencers.rb      | 8 ++------
 .../api/actions/machine_learning/get_model_snapshots.rb  | 8 ++------
 .../api/actions/machine_learning/get_overall_buckets.rb  | 8 ++------
 .../api/actions/machine_learning/get_records.rb          | 8 ++------
 .../actions/machine_learning/revert_model_snapshot.rb    | 1 +
 .../api/actions/machine_learning/start_datafeed.rb       | 1 +
 .../lib/elasticsearch/api/actions/open_point_in_time.rb  | 1 +
 .../elasticsearch/api/actions/render_search_template.rb  | 9 +++------
 .../api/actions/scripts_painless_execute.rb              | 9 +++------
 .../lib/elasticsearch/api/actions/scroll.rb              | 9 +++------
 .../lib/elasticsearch/api/actions/search.rb              | 9 +++------
 .../snapshot_lifecycle_management/put_lifecycle.rb       | 1 +
 .../lib/elasticsearch/api/actions/terms_enum.rb          | 8 ++------
 .../lib/elasticsearch/api/actions/update_by_query.rb     | 1 +
 elasticsearch-api/lib/elasticsearch/api/version.rb       | 2 +-
 69 files changed, 103 insertions(+), 115 deletions(-)

diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/clear_scroll.rb b/elasticsearch-api/lib/elasticsearch/api/actions/clear_scroll.rb
index 096e3e67b3..43d9189084 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/clear_scroll.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/clear_scroll.rb
@@ -51,6 +51,8 @@ module Actions
       def clear_scroll(arguments = {})
         request_opts = { endpoint: arguments[:endpoint] || 'clear_scroll' }
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
         arguments = arguments.clone
         headers = arguments.delete(:headers) || {}
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/close_point_in_time.rb b/elasticsearch-api/lib/elasticsearch/api/actions/close_point_in_time.rb
index 4adf2ca4c2..75b55c4f9b 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/close_point_in_time.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/close_point_in_time.rb
@@ -46,6 +46,8 @@ module Actions
       def close_point_in_time(arguments = {})
         request_opts = { endpoint: arguments[:endpoint] || 'close_point_in_time' }
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
         arguments = arguments.clone
         headers = arguments.delete(:headers) || {}
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/cluster/allocation_explain.rb b/elasticsearch-api/lib/elasticsearch/api/actions/cluster/allocation_explain.rb
index 965257ffea..4d002e4acc 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/cluster/allocation_explain.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/cluster/allocation_explain.rb
@@ -56,17 +56,14 @@ module Actions
         def allocation_explain(arguments = {})
           request_opts = { endpoint: arguments[:endpoint] || 'cluster.allocation_explain' }
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
           arguments = arguments.clone
           headers = arguments.delete(:headers) || {}
 
           body = arguments.delete(:body)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = '_cluster/allocation/explain'
           params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/cluster/reroute.rb b/elasticsearch-api/lib/elasticsearch/api/actions/cluster/reroute.rb
index 9dcc896ba3..fa4e09f806 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/cluster/reroute.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/cluster/reroute.rb
@@ -59,6 +59,8 @@ module Actions
         def reroute(arguments = {})
           request_opts = { endpoint: arguments[:endpoint] || 'cluster.reroute' }
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
           arguments = arguments.clone
           headers = arguments.delete(:headers) || {}
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/count.rb b/elasticsearch-api/lib/elasticsearch/api/actions/count.rb
index 04a287bdab..44a45facfe 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/count.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/count.rb
@@ -94,6 +94,8 @@ def count(arguments = {})
         end
         request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
         arguments = arguments.clone
         headers = arguments.delete(:headers) || {}
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/explain.rb b/elasticsearch-api/lib/elasticsearch/api/actions/explain.rb
index 61f6a0e528..87fc7eddb4 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/explain.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/explain.rb
@@ -75,6 +75,7 @@ def explain(arguments = {})
         end
         request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
         raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
         raise ArgumentError, "Required argument 'id' missing" unless arguments[:id]
 
@@ -87,12 +88,7 @@ def explain(arguments = {})
 
         _index = arguments.delete(:index)
 
-        method = if body
-                   Elasticsearch::API::HTTP_POST
-                 else
-                   Elasticsearch::API::HTTP_GET
-                 end
-
+        method = Elasticsearch::API::HTTP_POST
         path   = "#{Utils.listify(_index)}/_explain/#{Utils.listify(_id)}"
         params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/field_caps.rb b/elasticsearch-api/lib/elasticsearch/api/actions/field_caps.rb
index 5cc055737c..834803abb5 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/field_caps.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/field_caps.rb
@@ -72,6 +72,8 @@ def field_caps(arguments = {})
         end
         request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
         arguments = arguments.clone
         headers = arguments.delete(:headers) || {}
 
@@ -79,12 +81,7 @@ def field_caps(arguments = {})
 
         _index = arguments.delete(:index)
 
-        method = if body
-                   Elasticsearch::API::HTTP_POST
-                 else
-                   Elasticsearch::API::HTTP_GET
-                 end
-
+        method = Elasticsearch::API::HTTP_POST
         path   = if _index
                    "#{Utils.listify(_index)}/_field_caps"
                  else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/fleet/search.rb b/elasticsearch-api/lib/elasticsearch/api/actions/fleet/search.rb
index 50a1867f17..fd5ad84ea9 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/fleet/search.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/fleet/search.rb
@@ -102,6 +102,7 @@ def search(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
 
           arguments = arguments.clone
@@ -111,12 +112,7 @@ def search(arguments = {})
 
           _index = arguments.delete(:index)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = "#{Utils.listify(_index)}/_fleet/_fleet_search"
           params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/graph/explore.rb b/elasticsearch-api/lib/elasticsearch/api/actions/graph/explore.rb
index 2c130aa113..04b7d0566c 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/graph/explore.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/graph/explore.rb
@@ -58,6 +58,7 @@ def explore(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
 
           arguments = arguments.clone
@@ -67,12 +68,7 @@ def explore(arguments = {})
 
           _index = arguments.delete(:index)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = "#{Utils.listify(_index)}/_graph/explore"
           params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/index_lifecycle_management/move_to_step.rb b/elasticsearch-api/lib/elasticsearch/api/actions/index_lifecycle_management/move_to_step.rb
index a34ff2dad1..94ef76a198 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/index_lifecycle_management/move_to_step.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/index_lifecycle_management/move_to_step.rb
@@ -59,6 +59,7 @@ def move_to_step(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/index_lifecycle_management/put_lifecycle.rb b/elasticsearch-api/lib/elasticsearch/api/actions/index_lifecycle_management/put_lifecycle.rb
index 0a81e562a4..ac628484e8 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/index_lifecycle_management/put_lifecycle.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/index_lifecycle_management/put_lifecycle.rb
@@ -53,6 +53,7 @@ def put_lifecycle(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'policy' missing" unless arguments[:policy]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/analyze.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/analyze.rb
index deccf943ef..bec9bd4069 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/analyze.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/analyze.rb
@@ -56,6 +56,8 @@ def analyze(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
           arguments = arguments.clone
           headers = arguments.delete(:headers) || {}
 
@@ -63,12 +65,7 @@ def analyze(arguments = {})
 
           _index = arguments.delete(:index)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = if _index
                      "#{Utils.listify(_index)}/_analyze"
                    else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/clone.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/clone.rb
index f1065694ff..3b5c691aea 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/clone.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/clone.rb
@@ -86,6 +86,7 @@ def clone(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
           raise ArgumentError, "Required argument 'target' missing" unless arguments[:target]
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/create.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/create.rb
index a378aa4dc5..09bebbacc1 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/create.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/create.rb
@@ -78,6 +78,7 @@ def create(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_lifecycle.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_lifecycle.rb
index 3dfc9774ca..286f2ba3e5 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_lifecycle.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_lifecycle.rb
@@ -59,6 +59,7 @@ def put_data_lifecycle(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'name' missing" unless arguments[:name]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_stream_options.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_stream_options.rb
index 5c7e4f671b..68ed17ca45 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_stream_options.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_stream_options.rb
@@ -59,6 +59,7 @@ def put_data_stream_options(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'name' missing" unless arguments[:name]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/rollover.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/rollover.rb
index 2044006eca..3275f2f3fa 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/rollover.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/rollover.rb
@@ -86,6 +86,7 @@ def rollover(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'alias' missing" unless arguments[:alias]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/shrink.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/shrink.rb
index 4689b7f7bc..df624ad063 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/shrink.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/shrink.rb
@@ -78,6 +78,7 @@ def shrink(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
           raise ArgumentError, "Required argument 'target' missing" unless arguments[:target]
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/split.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/split.rb
index 86b0ad3e02..062c3fad3e 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/split.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/split.rb
@@ -81,6 +81,7 @@ def split(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
           raise ArgumentError, "Required argument 'target' missing" unless arguments[:target]
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/validate_query.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/validate_query.rb
index d9637d9a65..b14cd5c96a 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/indices/validate_query.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/validate_query.rb
@@ -69,6 +69,8 @@ def validate_query(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
           arguments = arguments.clone
           headers = arguments.delete(:headers) || {}
 
@@ -76,12 +78,7 @@ def validate_query(arguments = {})
 
           _index = arguments.delete(:index)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = if _index
                      "#{Utils.listify(_index)}/_validate/query"
                    else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/completion.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/completion.rb
index 0475c49ab6..45ce47c3b9 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/completion.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/completion.rb
@@ -50,6 +50,7 @@ def completion(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'inference_id' missing" unless arguments[:inference_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/inference.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/inference.rb
index 8b0aa2ebc2..4ec82363c4 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/inference.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/inference.rb
@@ -55,6 +55,7 @@ def inference(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'inference_id' missing" unless arguments[:inference_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_ai21.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_ai21.rb
index df7f3a439c..4d95dbff1a 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_ai21.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_ai21.rb
@@ -52,6 +52,7 @@ def put_ai21(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
           raise ArgumentError, "Required argument 'ai21_inference_id' missing" unless arguments[:ai21_inference_id]
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_alibabacloud.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_alibabacloud.rb
index 7484179b91..f4d44742e8 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_alibabacloud.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_alibabacloud.rb
@@ -52,6 +52,7 @@ def put_alibabacloud(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:alibabacloud_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_amazonbedrock.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_amazonbedrock.rb
index cb0b583456..a3768d54d0 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_amazonbedrock.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_amazonbedrock.rb
@@ -52,6 +52,7 @@ def put_amazonbedrock(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:amazonbedrock_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_amazonsagemaker.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_amazonsagemaker.rb
index 43c06f9b47..6cf6c60f6a 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_amazonsagemaker.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_amazonsagemaker.rb
@@ -52,6 +52,7 @@ def put_amazonsagemaker(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:amazonsagemaker_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_anthropic.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_anthropic.rb
index 99113a7f81..c5fda36d84 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_anthropic.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_anthropic.rb
@@ -53,6 +53,7 @@ def put_anthropic(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:anthropic_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_azureaistudio.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_azureaistudio.rb
index 7fa0aec566..3955b426ab 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_azureaistudio.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_azureaistudio.rb
@@ -52,6 +52,7 @@ def put_azureaistudio(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:azureaistudio_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_azureopenai.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_azureopenai.rb
index 64e1cd829b..14f2bd83b4 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_azureopenai.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_azureopenai.rb
@@ -57,6 +57,7 @@ def put_azureopenai(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:azureopenai_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_cohere.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_cohere.rb
index c087699473..87af1099c7 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_cohere.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_cohere.rb
@@ -52,6 +52,7 @@ def put_cohere(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:cohere_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_contextualai.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_contextualai.rb
index 4e63d822ed..5d35d7e4d2 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_contextualai.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_contextualai.rb
@@ -53,6 +53,7 @@ def put_contextualai(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:contextualai_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_custom.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_custom.rb
index a8937cbb55..4a9890d776 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_custom.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_custom.rb
@@ -82,6 +82,7 @@ def put_custom(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:custom_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_deepseek.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_deepseek.rb
index 066b07d529..a857227044 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_deepseek.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_deepseek.rb
@@ -52,6 +52,7 @@ def put_deepseek(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:deepseek_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_elasticsearch.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_elasticsearch.rb
index 23f0304060..cbf2bae051 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_elasticsearch.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_elasticsearch.rb
@@ -53,6 +53,7 @@ def put_elasticsearch(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:elasticsearch_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_elser.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_elser.rb
index 23781d41fe..20604438cc 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_elser.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_elser.rb
@@ -53,6 +53,7 @@ def put_elser(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
           raise ArgumentError, "Required argument 'elser_inference_id' missing" unless arguments[:elser_inference_id]
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_googleaistudio.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_googleaistudio.rb
index e17a2c2034..c1a368a455 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_googleaistudio.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_googleaistudio.rb
@@ -52,6 +52,7 @@ def put_googleaistudio(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:googleaistudio_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_googlevertexai.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_googlevertexai.rb
index 4d8db90eec..98d0a0334c 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_googlevertexai.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_googlevertexai.rb
@@ -52,6 +52,7 @@ def put_googlevertexai(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:googlevertexai_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_hugging_face.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_hugging_face.rb
index daaa7d2e48..cdf0800114 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_hugging_face.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_hugging_face.rb
@@ -80,6 +80,7 @@ def put_hugging_face(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:huggingface_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_jinaai.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_jinaai.rb
index fff81ef27a..55f6c78d87 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_jinaai.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_jinaai.rb
@@ -54,6 +54,7 @@ def put_jinaai(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:jinaai_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_llama.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_llama.rb
index a4abbf2664..6bcc34cd20 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_llama.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_llama.rb
@@ -52,6 +52,7 @@ def put_llama(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
           raise ArgumentError, "Required argument 'llama_inference_id' missing" unless arguments[:llama_inference_id]
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_mistral.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_mistral.rb
index 9a30ff2759..7e335841d9 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_mistral.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_mistral.rb
@@ -52,6 +52,7 @@ def put_mistral(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:mistral_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_openai.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_openai.rb
index f6c92df0c9..8eaa8ce13e 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_openai.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_openai.rb
@@ -53,6 +53,7 @@ def put_openai(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:openai_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_voyageai.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_voyageai.rb
index a4033870c6..0a6b83c0c3 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_voyageai.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_voyageai.rb
@@ -53,6 +53,7 @@ def put_voyageai(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:voyageai_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_watsonx.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_watsonx.rb
index a08c0ce112..eba8a93d14 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_watsonx.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/put_watsonx.rb
@@ -54,6 +54,7 @@ def put_watsonx(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'task_type' missing" unless arguments[:task_type]
 
           unless arguments[:watsonx_inference_id]
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/rerank.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/rerank.rb
index 8f65a97c47..810c706c03 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/rerank.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/rerank.rb
@@ -50,6 +50,7 @@ def rerank(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'inference_id' missing" unless arguments[:inference_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/sparse_embedding.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/sparse_embedding.rb
index dd823864e3..835a45aeee 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/sparse_embedding.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/sparse_embedding.rb
@@ -50,6 +50,7 @@ def sparse_embedding(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'inference_id' missing" unless arguments[:inference_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/stream_completion.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/stream_completion.rb
index 8ffbad6192..80e55c604a 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/stream_completion.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/stream_completion.rb
@@ -54,6 +54,7 @@ def stream_completion(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'inference_id' missing" unless arguments[:inference_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/inference/text_embedding.rb b/elasticsearch-api/lib/elasticsearch/api/actions/inference/text_embedding.rb
index 7a81cca33c..b552b746c4 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/inference/text_embedding.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/inference/text_embedding.rb
@@ -50,6 +50,7 @@ def text_embedding(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'inference_id' missing" unless arguments[:inference_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/license/post.rb b/elasticsearch-api/lib/elasticsearch/api/actions/license/post.rb
index 170f3aa240..1e6c0f5613 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/license/post.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/license/post.rb
@@ -52,6 +52,8 @@ module Actions
         def post(arguments = {})
           request_opts = { endpoint: arguments[:endpoint] || 'license.post' }
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
           arguments = arguments.clone
           headers = arguments.delete(:headers) || {}
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/delete_expired_data.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/delete_expired_data.rb
index 8d7ae72bf4..0ef466d59a 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/delete_expired_data.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/delete_expired_data.rb
@@ -61,6 +61,8 @@ def delete_expired_data(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
           arguments = arguments.clone
           headers = arguments.delete(:headers) || {}
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/flush_job.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/flush_job.rb
index d1c05511b0..14efd2e3a2 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/flush_job.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/flush_job.rb
@@ -67,6 +67,7 @@ def flush_job(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_buckets.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_buckets.rb
index 9168ffb6b4..13a2e2a3de 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_buckets.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_buckets.rb
@@ -63,6 +63,7 @@ def get_buckets(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]
 
           arguments = arguments.clone
@@ -74,12 +75,7 @@ def get_buckets(arguments = {})
 
           _timestamp = arguments.delete(:timestamp)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = if _job_id && _timestamp
                      "_ml/anomaly_detectors/#{Utils.listify(_job_id)}/results/buckets/#{Utils.listify(_timestamp)}"
                    else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_calendars.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_calendars.rb
index a9b97b3c41..7baa6d06ff 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_calendars.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_calendars.rb
@@ -51,6 +51,8 @@ def get_calendars(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
           arguments = arguments.clone
           headers = arguments.delete(:headers) || {}
 
@@ -58,12 +60,7 @@ def get_calendars(arguments = {})
 
           _calendar_id = arguments.delete(:calendar_id)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = if _calendar_id
                      "_ml/calendars/#{Utils.listify(_calendar_id)}"
                    else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_categories.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_categories.rb
index 154da74930..fa5c0e568b 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_categories.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_categories.rb
@@ -57,6 +57,7 @@ def get_categories(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]
 
           arguments = arguments.clone
@@ -68,12 +69,7 @@ def get_categories(arguments = {})
 
           _category_id = arguments.delete(:category_id)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = if _job_id && _category_id
                      "_ml/anomaly_detectors/#{Utils.listify(_job_id)}/results/categories/#{Utils.listify(_category_id)}"
                    else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_influencers.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_influencers.rb
index 91b9e23b68..5eaf8b79fc 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_influencers.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_influencers.rb
@@ -66,6 +66,7 @@ def get_influencers(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]
 
           arguments = arguments.clone
@@ -75,12 +76,7 @@ def get_influencers(arguments = {})
 
           _job_id = arguments.delete(:job_id)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = "_ml/anomaly_detectors/#{Utils.listify(_job_id)}/results/influencers"
           params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_model_snapshots.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_model_snapshots.rb
index 25ee58380f..ffb928dabc 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_model_snapshots.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_model_snapshots.rb
@@ -59,6 +59,7 @@ def get_model_snapshots(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]
 
           arguments = arguments.clone
@@ -70,12 +71,7 @@ def get_model_snapshots(arguments = {})
 
           _snapshot_id = arguments.delete(:snapshot_id)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = if _job_id && _snapshot_id
                      "_ml/anomaly_detectors/#{Utils.listify(_job_id)}/model_snapshots/#{Utils.listify(_snapshot_id)}"
                    else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_overall_buckets.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_overall_buckets.rb
index 13ea6f211c..541dcb68d1 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_overall_buckets.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_overall_buckets.rb
@@ -88,6 +88,7 @@ def get_overall_buckets(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]
 
           arguments = arguments.clone
@@ -97,12 +98,7 @@ def get_overall_buckets(arguments = {})
 
           _job_id = arguments.delete(:job_id)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = "_ml/anomaly_detectors/#{Utils.listify(_job_id)}/results/overall_buckets"
           params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_records.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_records.rb
index ad69302684..6f16bda4a3 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_records.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/get_records.rb
@@ -69,6 +69,7 @@ def get_records(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]
 
           arguments = arguments.clone
@@ -78,12 +79,7 @@ def get_records(arguments = {})
 
           _job_id = arguments.delete(:job_id)
 
-          method = if body
-                     Elasticsearch::API::HTTP_POST
-                   else
-                     Elasticsearch::API::HTTP_GET
-                   end
-
+          method = Elasticsearch::API::HTTP_POST
           path   = "_ml/anomaly_detectors/#{Utils.listify(_job_id)}/results/records"
           params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/revert_model_snapshot.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/revert_model_snapshot.rb
index 53ac06188f..55cf70fce4 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/revert_model_snapshot.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/revert_model_snapshot.rb
@@ -65,6 +65,7 @@ def revert_model_snapshot(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]
           raise ArgumentError, "Required argument 'snapshot_id' missing" unless arguments[:snapshot_id]
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/start_datafeed.rb b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/start_datafeed.rb
index 65895120b2..2945df1a0f 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/start_datafeed.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/machine_learning/start_datafeed.rb
@@ -75,6 +75,7 @@ def start_datafeed(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'datafeed_id' missing" unless arguments[:datafeed_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/open_point_in_time.rb b/elasticsearch-api/lib/elasticsearch/api/actions/open_point_in_time.rb
index a27aec66f6..a982bc669b 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/open_point_in_time.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/open_point_in_time.rb
@@ -93,6 +93,7 @@ def open_point_in_time(arguments = {})
         end
         request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
         raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
 
         arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/render_search_template.rb b/elasticsearch-api/lib/elasticsearch/api/actions/render_search_template.rb
index 9892557a15..99a0e84d37 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/render_search_template.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/render_search_template.rb
@@ -50,6 +50,8 @@ def render_search_template(arguments = {})
         end
         request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
         arguments = arguments.clone
         headers = arguments.delete(:headers) || {}
 
@@ -57,12 +59,7 @@ def render_search_template(arguments = {})
 
         _id = arguments.delete(:id)
 
-        method = if body
-                   Elasticsearch::API::HTTP_POST
-                 else
-                   Elasticsearch::API::HTTP_GET
-                 end
-
+        method = Elasticsearch::API::HTTP_POST
         path   = if _id
                    "_render/template/#{Utils.listify(_id)}"
                  else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/scripts_painless_execute.rb b/elasticsearch-api/lib/elasticsearch/api/actions/scripts_painless_execute.rb
index e23ff0246c..51c6c4cde9 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/scripts_painless_execute.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/scripts_painless_execute.rb
@@ -51,17 +51,14 @@ module Actions
       def scripts_painless_execute(arguments = {})
         request_opts = { endpoint: arguments[:endpoint] || 'scripts_painless_execute' }
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
         arguments = arguments.clone
         headers = arguments.delete(:headers) || {}
 
         body = arguments.delete(:body)
 
-        method = if body
-                   Elasticsearch::API::HTTP_POST
-                 else
-                   Elasticsearch::API::HTTP_GET
-                 end
-
+        method = Elasticsearch::API::HTTP_POST
         path   = '_scripts/painless/_execute'
         params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/scroll.rb b/elasticsearch-api/lib/elasticsearch/api/actions/scroll.rb
index 2f92c9b944..f557ba5d44 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/scroll.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/scroll.rb
@@ -59,6 +59,8 @@ module Actions
       def scroll(arguments = {})
         request_opts = { endpoint: arguments[:endpoint] || 'scroll' }
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
         arguments = arguments.clone
         headers = arguments.delete(:headers) || {}
 
@@ -66,12 +68,7 @@ def scroll(arguments = {})
 
         _scroll_id = arguments.delete(:scroll_id)
 
-        method = if body
-                   Elasticsearch::API::HTTP_POST
-                 else
-                   Elasticsearch::API::HTTP_GET
-                 end
-
+        method = Elasticsearch::API::HTTP_POST
         path   = '_search/scroll'
         params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/search.rb b/elasticsearch-api/lib/elasticsearch/api/actions/search.rb
index 3f8bd68501..2ccad9f087 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/search.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/search.rb
@@ -180,6 +180,8 @@ def search(arguments = {})
         end
         request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+
         arguments = arguments.clone
         headers = arguments.delete(:headers) || {}
 
@@ -187,12 +189,7 @@ def search(arguments = {})
 
         _index = arguments.delete(:index)
 
-        method = if body
-                   Elasticsearch::API::HTTP_POST
-                 else
-                   Elasticsearch::API::HTTP_GET
-                 end
-
+        method = Elasticsearch::API::HTTP_POST
         path   = if _index
                    "#{Utils.listify(_index)}/_search"
                  else
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/snapshot_lifecycle_management/put_lifecycle.rb b/elasticsearch-api/lib/elasticsearch/api/actions/snapshot_lifecycle_management/put_lifecycle.rb
index 8ebac084b9..961a38d1bc 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/snapshot_lifecycle_management/put_lifecycle.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/snapshot_lifecycle_management/put_lifecycle.rb
@@ -58,6 +58,7 @@ def put_lifecycle(arguments = {})
           end
           request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
           raise ArgumentError, "Required argument 'policy_id' missing" unless arguments[:policy_id]
 
           arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/terms_enum.rb b/elasticsearch-api/lib/elasticsearch/api/actions/terms_enum.rb
index 1720c9b04c..1a3d7984a4 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/terms_enum.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/terms_enum.rb
@@ -52,6 +52,7 @@ def terms_enum(arguments = {})
         end
         request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
         raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
 
         arguments = arguments.clone
@@ -61,12 +62,7 @@ def terms_enum(arguments = {})
 
         _index = arguments.delete(:index)
 
-        method = if body
-                   Elasticsearch::API::HTTP_POST
-                 else
-                   Elasticsearch::API::HTTP_GET
-                 end
-
+        method = Elasticsearch::API::HTTP_POST
         path   = "#{Utils.listify(_index)}/_terms_enum"
         params = Utils.process_params(arguments)
 
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/update_by_query.rb b/elasticsearch-api/lib/elasticsearch/api/actions/update_by_query.rb
index b612b2a62a..1dc6e7a8a1 100644
--- a/elasticsearch-api/lib/elasticsearch/api/actions/update_by_query.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/update_by_query.rb
@@ -180,6 +180,7 @@ def update_by_query(arguments = {})
         end
         request_opts[:defined_params] = defined_params unless defined_params.empty?
 
+        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
         raise ArgumentError, "Required argument 'index' missing" unless arguments[:index]
 
         arguments = arguments.clone
diff --git a/elasticsearch-api/lib/elasticsearch/api/version.rb b/elasticsearch-api/lib/elasticsearch/api/version.rb
index a56be4679a..f5bff647c9 100644
--- a/elasticsearch-api/lib/elasticsearch/api/version.rb
+++ b/elasticsearch-api/lib/elasticsearch/api/version.rb
@@ -18,6 +18,6 @@
 module Elasticsearch
   module API
     VERSION = '9.2.0'.freeze
-    ES_SPECIFICATION_COMMIT = '88ed8664f1c6662d0a277627092255bde3259c5c'.freeze
+    ES_SPECIFICATION_COMMIT = '62d200f5597fbf3529686f7ae7063d6b0a77f1cb'.freeze
   end
 end

From abd73e79b635e1c043b4f3ddc82e5a2cab6ee8ec Mon Sep 17 00:00:00 2001
From: Fernando Briano <fernando@picandocodigo.net>
Date: Fri, 10 Oct 2025 16:42:31 +0100
Subject: [PATCH 2/3] [API] Updates unit tests for 68 APIs with required body

---
 .../unit/actions/close_point_in_time_spec.rb  |  4 +-
 .../cluster/allocation_explain_spec.rb        |  6 +-
 .../spec/unit/actions/cluster/reroute_spec.rb | 22 +-------
 .../spec/unit/actions/count_spec.rb           | 12 ++--
 .../unit/actions/explain_document_spec.rb     |  6 +-
 .../spec/unit/actions/field_caps_spec.rb      | 14 ++---
 .../spec/unit/actions/fleet/search_spec.rb    |  6 +-
 .../spec/unit/actions/graph/explore_spec.rb   |  6 +-
 .../move_to_step_spec.rb                      |  4 +-
 .../spec/unit/actions/indices/analyze_spec.rb |  8 +--
 .../spec/unit/actions/indices/clone_spec.rb   | 55 ++++++++++---------
 .../spec/unit/actions/indices/create_spec.rb  | 24 ++++----
 .../indices/put_data_lifecycle_spec.rb        |  4 +-
 .../indices/put_data_stream_options_spec.rb   |  4 +-
 .../unit/actions/indices/rollover_spec.rb     | 19 +++----
 .../spec/unit/actions/indices/shrink_spec.rb  |  6 +-
 .../spec/unit/actions/indices/split_spec.rb   |  4 +-
 .../actions/indices/validate_query_spec.rb    | 20 +++----
 .../unit/actions/inference/completion_spec.rb |  4 +-
 .../unit/actions/inference/inference_spec.rb  |  4 +-
 .../unit/actions/inference/put_ai21_spec.rb   |  4 +-
 .../inference/put_alibabacloud_spec.rb        |  4 +-
 .../inference/put_amazonbedrock_spec.rb       |  4 +-
 .../inference/put_amazonsagemaker_spec.rb     |  4 +-
 .../actions/inference/put_anthropic_spec.rb   |  4 +-
 .../inference/put_azureaistudio_spec.rb       |  4 +-
 .../actions/inference/put_azureopenai_spec.rb |  4 +-
 .../unit/actions/inference/put_cohere_spec.rb |  4 +-
 .../inference/put_contextualai_spec.rb        |  4 +-
 .../unit/actions/inference/put_custom_spec.rb |  4 +-
 .../actions/inference/put_deepseek_spec.rb    |  4 +-
 .../inference/put_elasticsearch_spec.rb       |  4 +-
 .../unit/actions/inference/put_elser_spec.rb  |  4 +-
 .../inference/put_googleaistudio_spec.rb      |  4 +-
 .../inference/put_googlevertexai_spec.rb      |  4 +-
 .../inference/put_hugging_face_spec.rb        |  4 +-
 .../unit/actions/inference/put_jinaai_spec.rb |  4 +-
 .../unit/actions/inference/put_llama_spec.rb  |  4 +-
 .../actions/inference/put_mistral_spec.rb     |  4 +-
 .../unit/actions/inference/put_openai_spec.rb |  4 +-
 .../actions/inference/put_voyageai_spec.rb    |  4 +-
 .../actions/inference/put_watsonx_spec.rb     |  4 +-
 .../unit/actions/inference/rerank_spec.rb     |  4 +-
 .../inference/sparse_embedding_spec.rb        |  4 +-
 .../inference/stream_completion_spec.rb       |  4 +-
 .../actions/inference/text_embedding_spec.rb  |  4 +-
 .../spec/unit/actions/license/post_spec.rb    |  4 +-
 .../unit/actions/open_point_in_time_spec.rb   |  4 +-
 .../spec/unit/actions/scroll_spec.rb          |  6 +-
 .../spec/unit/actions/search_spec.rb          | 12 ++--
 .../spec/unit/actions/terms_enum_spec.rb      | 23 ++------
 .../spec/unit/actions/update_by_query_spec.rb |  4 +-
 52 files changed, 178 insertions(+), 211 deletions(-)

diff --git a/elasticsearch-api/spec/unit/actions/close_point_in_time_spec.rb b/elasticsearch-api/spec/unit/actions/close_point_in_time_spec.rb
index d770830179..b4707c0c9f 100644
--- a/elasticsearch-api/spec/unit/actions/close_point_in_time_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/close_point_in_time_spec.rb
@@ -23,13 +23,13 @@
       'DELETE',
       '_pit',
       {},
-      nil,
+      {},
       {},
       { endpoint: 'close_point_in_time' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.close_point_in_time).to be_a Elasticsearch::API::Response
+    expect(client_double.close_point_in_time(body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/cluster/allocation_explain_spec.rb b/elasticsearch-api/spec/unit/actions/cluster/allocation_explain_spec.rb
index 3577130b2c..ab7e342fd7 100644
--- a/elasticsearch-api/spec/unit/actions/cluster/allocation_explain_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/cluster/allocation_explain_spec.rb
@@ -21,16 +21,16 @@
 
   let(:expected_args) do
     [
-        'GET',
+        'POST',
         '_cluster/allocation/explain',
         {},
-        nil,
+        {},
         {},
         { endpoint: 'cluster.allocation_explain' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.cluster.allocation_explain).to be_a Elasticsearch::API::Response
+    expect(client_double.cluster.allocation_explain(body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/cluster/reroute_spec.rb b/elasticsearch-api/spec/unit/actions/cluster/reroute_spec.rb
index b0278bbab8..eee674e4fb 100644
--- a/elasticsearch-api/spec/unit/actions/cluster/reroute_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/cluster/reroute_spec.rb
@@ -18,36 +18,18 @@
 require 'spec_helper'
 
 describe 'client.cluster#reroute' do
-
   let(:expected_args) do
     [
       'POST',
       '_cluster/reroute',
       {},
-      nil,
+      { commands: [ move: { index: 'myindex', shard: 0 }] },
       {},
       { endpoint: 'cluster.reroute' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.cluster.reroute).to be_a Elasticsearch::API::Response
-  end
-
-  context 'when a body is specified' do
-    let(:expected_args) do
-      [
-        'POST',
-        '_cluster/reroute',
-        {},
-        { commands: [ move: { index: 'myindex', shard: 0 }] },
-        {},
-        { endpoint: 'cluster.reroute' }
-      ]
-    end
-
-    it 'performs the request' do
-      expect(client_double.cluster.reroute(body: { commands: [ move: { index: 'myindex', shard: 0 }] })).to be_a Elasticsearch::API::Response
-    end
+    expect(client_double.cluster.reroute(body: { commands: [ move: { index: 'myindex', shard: 0 }] })).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/count_spec.rb b/elasticsearch-api/spec/unit/actions/count_spec.rb
index e7806501dd..4c56c43851 100644
--- a/elasticsearch-api/spec/unit/actions/count_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/count_spec.rb
@@ -20,33 +20,33 @@
 describe 'client#count' do
   let(:expected_args) do
     [
-      'GET',
+      'POST',
       '_count',
       {},
-      nil,
+      {},
       {},
       { endpoint: 'count' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.count).to be_a Elasticsearch::API::Response
+    expect(client_double.count(body: {})).to be_a Elasticsearch::API::Response
   end
 
   context 'when an index and type are specified' do
     let(:expected_args) do
       [
-        'GET',
+        'POST',
         'foo,bar/_count',
         {},
-        nil,
+        {},
         {},
         { defined_params: { index: ['foo', 'bar'] }, endpoint: 'count' }
       ]
     end
 
     it 'performs the request' do
-      expect(client_double.count(index: ['foo','bar'])).to be_a Elasticsearch::API::Response
+      expect(client_double.count(index: ['foo','bar'], body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
diff --git a/elasticsearch-api/spec/unit/actions/explain_document_spec.rb b/elasticsearch-api/spec/unit/actions/explain_document_spec.rb
index 50f6ce7f88..aa8d66b572 100644
--- a/elasticsearch-api/spec/unit/actions/explain_document_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/explain_document_spec.rb
@@ -64,7 +64,7 @@
   end
 
   context 'when a query is provided' do
-    let(:method) { 'GET' }
+    let(:method) { 'POST' }
     let(:params) do
       { q: 'abc123' }
     end
@@ -81,11 +81,11 @@
     end
 
     let(:body) do
-      nil
+      {}
     end
 
     it 'passes the query' do
-      expect(client_double.explain(index: 'foo', id: '1', q: 'abc123')).to be_a Elasticsearch::API::Response
+      expect(client_double.explain(index: 'foo', id: '1', q: 'abc123', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
diff --git a/elasticsearch-api/spec/unit/actions/field_caps_spec.rb b/elasticsearch-api/spec/unit/actions/field_caps_spec.rb
index e7c905a27e..48b5172bd3 100644
--- a/elasticsearch-api/spec/unit/actions/field_caps_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/field_caps_spec.rb
@@ -21,16 +21,16 @@
 
   let(:expected_args) do
     [
-        'GET',
-        'foo/_field_caps',
-        { fields: 'bar' },
-        nil,
-        {},
-        { defined_params: { index: 'foo' }, endpoint: 'field_caps' }
+      'POST',
+      'foo/_field_caps',
+      { fields: 'bar' },
+      {},
+      {},
+      { defined_params: { index: 'foo' }, endpoint: 'field_caps' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.field_caps(index: 'foo', fields: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.field_caps(index: 'foo', fields: 'bar', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/fleet/search_spec.rb b/elasticsearch-api/spec/unit/actions/fleet/search_spec.rb
index 6f49db20b4..fd2b32a18b 100644
--- a/elasticsearch-api/spec/unit/actions/fleet/search_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/fleet/search_spec.rb
@@ -20,17 +20,17 @@
 describe 'client#fleet.search' do
   let(:expected_args) do
     [
-      'GET',
+      'POST',
       'foo/_fleet/_fleet_search',
       {},
-      nil,
+      {},
       {},
       { defined_params: { index: 'foo' }, endpoint: 'fleet.search' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.fleet.search(index: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.fleet.search(index: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 
   let(:client) do
diff --git a/elasticsearch-api/spec/unit/actions/graph/explore_spec.rb b/elasticsearch-api/spec/unit/actions/graph/explore_spec.rb
index 7415a7b4ab..4cce7b7d01 100644
--- a/elasticsearch-api/spec/unit/actions/graph/explore_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/graph/explore_spec.rb
@@ -20,16 +20,16 @@
 describe 'client#eql.search' do
   let(:expected_args) do
     [
-      'GET',
+      'POST',
       'foo/_graph/explore',
       {},
-      nil,
+      {},
       {},
       { defined_params: { index: 'foo' }, endpoint: 'graph.explore' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.graph.explore(index: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.graph.explore(index: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/index_lifecycle_management/move_to_step_spec.rb b/elasticsearch-api/spec/unit/actions/index_lifecycle_management/move_to_step_spec.rb
index 35de205b91..365d2e33d6 100644
--- a/elasticsearch-api/spec/unit/actions/index_lifecycle_management/move_to_step_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/index_lifecycle_management/move_to_step_spec.rb
@@ -23,7 +23,7 @@
       'POST',
       '_ilm/move/foo',
       {},
-      nil,
+      {},
       {},
       { defined_params: { index: 'foo' }, endpoint: 'ilm.move_to_step' }
     ]
@@ -32,6 +32,6 @@
   let(:index) { 'foo' }
 
   it 'performs the request' do
-    expect(client_double.index_lifecycle_management.move_to_step(index: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.index_lifecycle_management.move_to_step(index: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/indices/analyze_spec.rb b/elasticsearch-api/spec/unit/actions/indices/analyze_spec.rb
index c23218b8b7..1bd941c4a1 100644
--- a/elasticsearch-api/spec/unit/actions/indices/analyze_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/analyze_spec.rb
@@ -28,10 +28,10 @@
       { endpoint: 'indices.analyze' }
     ]
   end
-  let(:method) { 'GET' }
+  let(:method) { 'POST' }
 
   let(:body) do
-    nil
+    {}
   end
 
   let(:url) do
@@ -43,7 +43,7 @@
   end
 
   it 'performs the request' do
-    expect(client_double.indices.analyze).to be_a Elasticsearch::API::Response
+    expect(client_double.indices.analyze(body: {})).to be_a Elasticsearch::API::Response
   end
 
   context 'when an index is specified' do
@@ -63,7 +63,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.indices.analyze(index: 'foo')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.analyze(index: 'foo', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
diff --git a/elasticsearch-api/spec/unit/actions/indices/clone_spec.rb b/elasticsearch-api/spec/unit/actions/indices/clone_spec.rb
index ab080402ca..0730d4fe8e 100644
--- a/elasticsearch-api/spec/unit/actions/indices/clone_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/clone_spec.rb
@@ -21,13 +21,13 @@
 
   let(:expected_args) do
     [
-        'PUT',
-        url,
-        params,
-        body,
-        {},
-        { defined_params: { index: 'my_source_index', target: 'my_target_index' },
-         endpoint: 'indices.clone' }
+      'PUT',
+      url,
+      params,
+      body,
+      {},
+      { defined_params: { index: 'my_source_index', target: 'my_target_index' },
+        endpoint: 'indices.clone' }
     ]
   end
 
@@ -36,15 +36,14 @@
   end
 
   let(:body) do
-    nil
+    {}
   end
 
   let(:url) do
     'my_source_index/_clone/my_target_index'
   end
 
-  context 'when there is no index specified' do
-
+  context 'when there is no index or body specified' do
     let(:client) do
       Class.new { include Elasticsearch::API }.new
     end
@@ -72,12 +71,17 @@
   context 'when an index and target are specified' do
 
     it 'performs the request' do
-      expect(client_double.indices.clone(index: 'my_source_index', target: 'my_target_index')).to be_a Elasticsearch::API::Response
+      expect(
+        client_double.indices.clone(
+          index: 'my_source_index',
+          target: 'my_target_index',
+          body: {}
+        )
+      ).to be_a Elasticsearch::API::Response
     end
   end
 
   context 'when params are provided' do
-
     let(:params) do
       {
         timeout: '1s',
@@ -91,7 +95,8 @@
                                          target: 'my_target_index',
                                          timeout: '1s',
                                          master_timeout: '10s',
-                                         wait_for_active_shards: 1)).to be_a Elasticsearch::API::Response
+                                         wait_for_active_shards: 1,
+                                         body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
@@ -99,12 +104,12 @@
 
     let(:body) do
       {
-          settings: {
-              'index.number_of_shards' => 5
-          },
-          aliases: {
-              my_search_indices: {}
-          }
+        settings: {
+          'index.number_of_shards' => 5
+        },
+        aliases: {
+          my_search_indices: {}
+        }
       }
     end
 
@@ -112,12 +117,12 @@
       expect(client_double.indices.clone(index: 'my_source_index',
                                          target: 'my_target_index',
                                          body: {
-                                             settings: {
-                                                 'index.number_of_shards' => 5
-                                             },
-                                             aliases: {
-                                                 my_search_indices: {}
-                                             }
+                                           settings: {
+                                             'index.number_of_shards' => 5
+                                           },
+                                           aliases: {
+                                             my_search_indices: {}
+                                           }
                                          })).to be_a Elasticsearch::API::Response
     end
   end
diff --git a/elasticsearch-api/spec/unit/actions/indices/create_spec.rb b/elasticsearch-api/spec/unit/actions/indices/create_spec.rb
index 719b493ef9..c4c7445d74 100644
--- a/elasticsearch-api/spec/unit/actions/indices/create_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/create_spec.rb
@@ -21,12 +21,12 @@
 
   let(:expected_args) do
     [
-        'PUT',
-        url,
-        params,
-        nil,
-        {},
-        { defined_params: { index: 'foo' }, endpoint: 'indices.create' }
+      'PUT',
+      url,
+      params,
+      {},
+      {},
+      { defined_params: { index: 'foo' }, endpoint: 'indices.create' }
     ]
   end
 
@@ -35,7 +35,6 @@
   end
 
   context 'when there is no index specified' do
-
     let(:client) do
       Class.new { include Elasticsearch::API }.new
     end
@@ -48,18 +47,16 @@
   end
 
   context 'when an index is specified' do
-
     let(:url) do
       'foo'
     end
 
     it 'performs the request' do
-      expect(client_double.indices.create(index: 'foo')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.create(index: 'foo', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
   context 'when params are specified' do
-
     let(:params) do
       { timeout: '1s' }
     end
@@ -69,12 +66,11 @@
     end
 
     it 'performs the request' do
-      expect(client_double.indices.create(index: 'foo', timeout: '1s')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.create(index: 'foo', timeout: '1s', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
   context 'when the path must be URL-escaped' do
-
     let(:url) do
       'foo%5Ebar'
     end
@@ -84,14 +80,14 @@
         'PUT',
         url,
         params,
-        nil,
+        {},
         {},
         { defined_params: { index: 'foo^bar' }, endpoint: 'indices.create' }
       ]
     end
 
     it 'performs the request' do
-      expect(client_double.indices.create(index: 'foo^bar')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.create(index: 'foo^bar', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/indices/put_data_lifecycle_spec.rb b/elasticsearch-api/spec/unit/actions/indices/put_data_lifecycle_spec.rb
index fedb498df3..2ea789d888 100644
--- a/elasticsearch-api/spec/unit/actions/indices/put_data_lifecycle_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/put_data_lifecycle_spec.rb
@@ -23,13 +23,13 @@
       'PUT',
       '_data_stream/foo/_lifecycle',
       {},
-      nil,
+      {},
       {},
       { defined_params: { name: 'foo' }, endpoint: 'indices.put_data_lifecycle' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.indices.put_data_lifecycle(name: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.indices.put_data_lifecycle(name: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/indices/put_data_stream_options_spec.rb b/elasticsearch-api/spec/unit/actions/indices/put_data_stream_options_spec.rb
index 427e76fba5..feaf07d96c 100644
--- a/elasticsearch-api/spec/unit/actions/indices/put_data_stream_options_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/put_data_stream_options_spec.rb
@@ -23,13 +23,13 @@
       'PUT',
       '_data_stream/foo/_options',
       {},
-      nil,
+      {},
       {},
       { endpoint: 'indices.put_data_stream_options', defined_params: { name: 'foo' } }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.indices.put_data_stream_options(name: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.indices.put_data_stream_options(name: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/indices/rollover_spec.rb b/elasticsearch-api/spec/unit/actions/indices/rollover_spec.rb
index 59a32a09de..e2b1d2440f 100644
--- a/elasticsearch-api/spec/unit/actions/indices/rollover_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/rollover_spec.rb
@@ -20,12 +20,12 @@
 describe 'client.indices#rollover' do
   let(:expected_args) do
     [
-        'POST',
-        url,
-        params,
-        body,
-        {},
-        { defined_params: { alias: 'foo' }, endpoint: 'indices.rollover' }
+      'POST',
+      url,
+      params,
+      body,
+      {},
+      { defined_params: { alias: 'foo' }, endpoint: 'indices.rollover' }
     ]
   end
 
@@ -34,7 +34,7 @@
   end
 
   let(:body) do
-    nil
+    {}
   end
 
   let(:params) do
@@ -42,11 +42,10 @@
   end
 
   it 'performs the request' do
-    expect(client_double.indices.rollover(alias: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.indices.rollover(alias: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 
   context 'when an index is specified' do
-
     let(:url) do
       'foo/_rollover/bar'
     end
@@ -63,7 +62,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.indices.rollover(alias: 'foo', new_index: 'bar')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.rollover(alias: 'foo', new_index: 'bar', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/indices/shrink_spec.rb b/elasticsearch-api/spec/unit/actions/indices/shrink_spec.rb
index 519754714f..614762e688 100644
--- a/elasticsearch-api/spec/unit/actions/indices/shrink_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/shrink_spec.rb
@@ -24,7 +24,7 @@
         'PUT',
         'foo/_shrink/bar',
         {},
-        nil,
+        {},
         {},
         { defined_params: { index: 'foo', target: 'bar' },
           endpoint: 'indices.shrink' }
@@ -32,11 +32,11 @@
   end
 
   it 'performs the request' do
-    expect(client_double.indices.shrink(index: 'foo', target: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.indices.shrink(index: 'foo', target: 'bar', body: {})).to be_a Elasticsearch::API::Response
   end
 
   it 'does not mutate the arguments' do
-    arguments = { index: 'foo', target: 'bar' }
+    arguments = { index: 'foo', target: 'bar', body: {} }
     client_double.indices.shrink(arguments)
     expect(arguments[:index]).to eq('foo')
     expect(arguments[:target]).to eq('bar')
diff --git a/elasticsearch-api/spec/unit/actions/indices/split_spec.rb b/elasticsearch-api/spec/unit/actions/indices/split_spec.rb
index a90d749b41..04b73d8379 100644
--- a/elasticsearch-api/spec/unit/actions/indices/split_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/split_spec.rb
@@ -24,7 +24,7 @@
         'PUT',
         'foo/_split/bar',
         {},
-        nil,
+        {},
         {},
         { defined_params: { index: 'foo', target: 'bar' },
           endpoint:'indices.split' }
@@ -32,6 +32,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.indices.split(index: 'foo', target: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.indices.split(index: 'foo', target: 'bar', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/indices/validate_query_spec.rb b/elasticsearch-api/spec/unit/actions/indices/validate_query_spec.rb
index b6059ed253..5d3f29e981 100644
--- a/elasticsearch-api/spec/unit/actions/indices/validate_query_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/indices/validate_query_spec.rb
@@ -29,14 +29,14 @@
     ]
   end
 
-  let(:method) { 'GET' }
+  let(:method) { 'POST' }
 
   let(:url) do
     '_validate/query'
   end
 
   let(:body) do
-    nil
+    {}
   end
 
   let(:params) do
@@ -44,7 +44,7 @@
   end
 
   it 'performs the request' do
-    expect(client_double.indices.validate_query).to be_a Elasticsearch::API::Response
+    expect(client_double.indices.validate_query(body: {})).to be_a Elasticsearch::API::Response
   end
 
   context 'when an index is specified' do
@@ -64,7 +64,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.indices.validate_query(index: 'foo')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.validate_query(index: 'foo', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
@@ -85,7 +85,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.indices.validate_query(index: ['foo', 'bar'])).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.validate_query(index: ['foo', 'bar'], body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
@@ -106,7 +106,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.indices.validate_query(index: 'foo,bar')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.validate_query(index: 'foo,bar', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
@@ -121,7 +121,7 @@
 
     let(:expected_args) do
       [
-        method,
+        'POST',
         url,
         params,
         body,
@@ -131,7 +131,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.indices.validate_query(explain: true, q: 'foo')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.validate_query(explain: true, q: 'foo', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
@@ -164,7 +164,7 @@
 
     let(:expected_args) do
       [
-        method,
+        'POST',
         url,
         params,
         body,
@@ -174,7 +174,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.indices.validate_query(index: 'foo^bar')).to be_a Elasticsearch::API::Response
+      expect(client_double.indices.validate_query(index: 'foo^bar', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/completion_spec.rb b/elasticsearch-api/spec/unit/actions/inference/completion_spec.rb
index 8817e72a32..e949d6f9a3 100644
--- a/elasticsearch-api/spec/unit/actions/inference/completion_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/completion_spec.rb
@@ -23,7 +23,7 @@
       'POST',
       '_inference/completion/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { inference_id: 'bar' },
         endpoint: 'inference.completion' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.completion(inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.completion(inference_id: 'bar', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/inference_spec.rb b/elasticsearch-api/spec/unit/actions/inference/inference_spec.rb
index dfa2a51890..7b06841095 100644
--- a/elasticsearch-api/spec/unit/actions/inference/inference_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/inference_spec.rb
@@ -23,7 +23,7 @@
       'POST',
       '_inference/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { inference_id: 'bar' },
         endpoint: 'inference.inference' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.inference(inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.inference(inference_id: 'bar', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_ai21_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_ai21_spec.rb
index ee902011c9..bc7f31bff3 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_ai21_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_ai21_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { ai21_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_ai21' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_ai21(task_type: 'foo', ai21_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_ai21(task_type: 'foo', body: {}, ai21_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_alibabacloud_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_alibabacloud_spec.rb
index 0ac550822f..728e5d2cd7 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_alibabacloud_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_alibabacloud_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { alibabacloud_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_alibabacloud' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_alibabacloud(task_type: 'foo', alibabacloud_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_alibabacloud(task_type: 'foo', body: {}, alibabacloud_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_amazonbedrock_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_amazonbedrock_spec.rb
index 23d5b57c39..eeded5052b 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_amazonbedrock_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_amazonbedrock_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { amazonbedrock_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_amazonbedrock' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_amazonbedrock(task_type: 'foo', amazonbedrock_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_amazonbedrock(task_type: 'foo', body: {}, amazonbedrock_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_amazonsagemaker_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_amazonsagemaker_spec.rb
index 2d5a686e43..4865779c25 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_amazonsagemaker_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_amazonsagemaker_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { amazonsagemaker_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_amazonsagemaker' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_amazonsagemaker(task_type: 'foo', amazonsagemaker_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_amazonsagemaker(task_type: 'foo', body: {}, amazonsagemaker_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_anthropic_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_anthropic_spec.rb
index 3f4c22cbba..b35a55ea07 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_anthropic_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_anthropic_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { anthropic_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_anthropic' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_anthropic(task_type: 'foo', anthropic_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_anthropic(task_type: 'foo', body: {}, anthropic_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_azureaistudio_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_azureaistudio_spec.rb
index add3ed7eec..aba9422729 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_azureaistudio_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_azureaistudio_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { azureaistudio_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_azureaistudio' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_azureaistudio(task_type: 'foo', azureaistudio_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_azureaistudio(task_type: 'foo', body: {}, azureaistudio_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_azureopenai_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_azureopenai_spec.rb
index ca0ade65b7..ed395e2513 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_azureopenai_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_azureopenai_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { azureopenai_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_azureopenai' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_azureopenai(task_type: 'foo', azureopenai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_azureopenai(task_type: 'foo', body: {}, azureopenai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_cohere_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_cohere_spec.rb
index 7eb82de752..dc5d851684 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_cohere_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_cohere_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { cohere_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_cohere' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_cohere(task_type: 'foo', cohere_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_cohere(task_type: 'foo', body: {}, cohere_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_contextualai_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_contextualai_spec.rb
index 092f9508e5..d83027316e 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_contextualai_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_contextualai_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { contextualai_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_contextualai' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_contextualai(task_type: 'foo', contextualai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_contextualai(task_type: 'foo', body: {}, contextualai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_custom_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_custom_spec.rb
index a409676f1b..ea3da2d7d7 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_custom_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_custom_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/baz',
       {},
-      nil,
+      {},
       {},
       { defined_params: { custom_inference_id: 'baz', task_type: 'foo' },
         endpoint: 'inference.put_custom' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_custom(task_type: 'foo', custom_inference_id: 'baz')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_custom(task_type: 'foo', body: {}, custom_inference_id: 'baz')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_deepseek_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_deepseek_spec.rb
index 25cbe4e72e..d0e15fb57a 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_deepseek_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_deepseek_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { deepseek_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_deepseek' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_deepseek(task_type: 'foo', deepseek_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_deepseek(task_type: 'foo', body: {}, deepseek_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_elasticsearch_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_elasticsearch_spec.rb
index e91a89c850..1dd95845ea 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_elasticsearch_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_elasticsearch_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { elasticsearch_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_elasticsearch' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_elasticsearch(task_type: 'foo', elasticsearch_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_elasticsearch(task_type: 'foo', body: {}, elasticsearch_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_elser_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_elser_spec.rb
index 1862e22721..eb18eaa0e8 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_elser_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_elser_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { elser_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_elser' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_elser(task_type: 'foo', elser_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_elser(task_type: 'foo', body: {}, elser_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_googleaistudio_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_googleaistudio_spec.rb
index 22c5284990..a8ced651f0 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_googleaistudio_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_googleaistudio_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { googleaistudio_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_googleaistudio' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_googleaistudio(task_type: 'foo', googleaistudio_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_googleaistudio(task_type: 'foo', body: {}, googleaistudio_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_googlevertexai_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_googlevertexai_spec.rb
index ccf6c883bf..b4c37355fa 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_googlevertexai_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_googlevertexai_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { googlevertexai_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_googlevertexai' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_googlevertexai(task_type: 'foo', googlevertexai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_googlevertexai(task_type: 'foo', body: {}, googlevertexai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_hugging_face_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_hugging_face_spec.rb
index 8feb11c28e..b23971a08c 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_hugging_face_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_hugging_face_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { huggingface_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_hugging_face' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_hugging_face(task_type: 'foo', huggingface_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_hugging_face(task_type: 'foo', body: {}, huggingface_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_jinaai_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_jinaai_spec.rb
index bcbf0e0f00..630b09f162 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_jinaai_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_jinaai_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { jinaai_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_jinaai' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_jinaai(task_type: 'foo', jinaai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_jinaai(task_type: 'foo', body: {}, jinaai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_llama_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_llama_spec.rb
index dc5623d513..28253622be 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_llama_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_llama_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { llama_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_llama' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_llama(task_type: 'foo', llama_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_llama(task_type: 'foo', body: {}, llama_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_mistral_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_mistral_spec.rb
index 2d8d8dbd3f..6485a6f6ae 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_mistral_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_mistral_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { mistral_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_mistral' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_mistral(task_type: 'foo', mistral_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_mistral(task_type: 'foo', body: {}, mistral_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_openai_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_openai_spec.rb
index b58dd6e568..a108190747 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_openai_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_openai_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { openai_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_openai' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_openai(task_type: 'foo', openai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_openai(task_type: 'foo', body: {}, openai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_voyageai_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_voyageai_spec.rb
index 8bac99b82d..a4417167fc 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_voyageai_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_voyageai_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { voyageai_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_voyageai' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_voyageai(task_type: 'foo', voyageai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_voyageai(task_type: 'foo', body: {}, voyageai_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/put_watsonx_spec.rb b/elasticsearch-api/spec/unit/actions/inference/put_watsonx_spec.rb
index 44245b8b02..19b055c06b 100644
--- a/elasticsearch-api/spec/unit/actions/inference/put_watsonx_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/put_watsonx_spec.rb
@@ -23,7 +23,7 @@
       'PUT',
       '_inference/foo/bar',
       {},
-      nil,
+      {},
       {},
       { defined_params: { watsonx_inference_id: 'bar', task_type: 'foo' },
         endpoint: 'inference.put_watsonx' }
@@ -31,6 +31,6 @@
   end
 
   it 'performs the request' do
-    expect(client_double.inference.put_watsonx(task_type: 'foo', watsonx_inference_id: 'bar')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.put_watsonx(task_type: 'foo', body: {}, watsonx_inference_id: 'bar')).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/rerank_spec.rb b/elasticsearch-api/spec/unit/actions/inference/rerank_spec.rb
index 7417cd74fa..b07793a6b6 100644
--- a/elasticsearch-api/spec/unit/actions/inference/rerank_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/rerank_spec.rb
@@ -23,13 +23,13 @@
       'POST',
       '_inference/rerank/foo',
       {},
-      nil,
+      {},
       {},
       { defined_params: { inference_id: 'foo' }, endpoint: 'inference.rerank' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.inference.rerank(inference_id: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.rerank(inference_id: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/sparse_embedding_spec.rb b/elasticsearch-api/spec/unit/actions/inference/sparse_embedding_spec.rb
index 856dface5a..3aa98c4911 100644
--- a/elasticsearch-api/spec/unit/actions/inference/sparse_embedding_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/sparse_embedding_spec.rb
@@ -23,13 +23,13 @@
       'POST',
       '_inference/sparse_embedding/foo',
       {},
-      nil,
+      {},
       {},
       { defined_params: { inference_id: 'foo' }, endpoint: 'inference.sparse_embedding' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.inference.sparse_embedding(inference_id: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.sparse_embedding(inference_id: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/stream_completion_spec.rb b/elasticsearch-api/spec/unit/actions/inference/stream_completion_spec.rb
index 542b1d9941..fcd887a7e0 100644
--- a/elasticsearch-api/spec/unit/actions/inference/stream_completion_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/stream_completion_spec.rb
@@ -23,13 +23,13 @@
       'POST',
       '_inference/completion/foo/_stream',
       {},
-      nil,
+      {},
       {},
       { defined_params: { inference_id: 'foo' }, endpoint: 'inference.stream_completion' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.inference.stream_completion(inference_id: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.stream_completion(inference_id: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/inference/text_embedding_spec.rb b/elasticsearch-api/spec/unit/actions/inference/text_embedding_spec.rb
index e97fda5865..455c9a3fc4 100644
--- a/elasticsearch-api/spec/unit/actions/inference/text_embedding_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/inference/text_embedding_spec.rb
@@ -23,13 +23,13 @@
       'POST',
       '_inference/text_embedding/foo',
       {},
-      nil,
+      {},
       {},
       { defined_params: { inference_id: 'foo' }, endpoint: 'inference.text_embedding' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.inference.text_embedding(inference_id: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.inference.text_embedding(inference_id: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/license/post_spec.rb b/elasticsearch-api/spec/unit/actions/license/post_spec.rb
index 7805b8824b..93558da1ae 100644
--- a/elasticsearch-api/spec/unit/actions/license/post_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/license/post_spec.rb
@@ -23,13 +23,13 @@
       'PUT',
       '_license',
       { },
-      nil,
+      {},
       {},
       { endpoint: 'license.post' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.license.post).to be_a Elasticsearch::API::Response
+    expect(client_double.license.post(body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/open_point_in_time_spec.rb b/elasticsearch-api/spec/unit/actions/open_point_in_time_spec.rb
index 3636a9c490..a1e73a1ca9 100644
--- a/elasticsearch-api/spec/unit/actions/open_point_in_time_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/open_point_in_time_spec.rb
@@ -23,13 +23,13 @@
       'POST',
       'foo/_pit',
       {},
-      nil,
+      {},
       {},
       { defined_params: { index: 'foo' }, endpoint: 'open_point_in_time' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.open_point_in_time(index: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.open_point_in_time(index: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/scroll_spec.rb b/elasticsearch-api/spec/unit/actions/scroll_spec.rb
index d7b2b3aee4..58839988f6 100644
--- a/elasticsearch-api/spec/unit/actions/scroll_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/scroll_spec.rb
@@ -21,17 +21,17 @@
   context 'with scroll_id as a param' do
     let(:expected_args) do
       [
-        'GET',
+        'POST',
         '_search/scroll',
         {},
-        nil,
+        {},
         {},
         { endpoint: 'scroll' }
       ]
     end
 
     it 'performs the request' do
-      expect(client_double.scroll(scroll_id: 'cXVlcn...')).to be_a Elasticsearch::API::Response
+      expect(client_double.scroll(scroll_id: 'cXVlcn...', body: {})).to be_a Elasticsearch::API::Response
     end
   end
 
diff --git a/elasticsearch-api/spec/unit/actions/search_spec.rb b/elasticsearch-api/spec/unit/actions/search_spec.rb
index 02e10edabe..282f087039 100644
--- a/elasticsearch-api/spec/unit/actions/search_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/search_spec.rb
@@ -28,10 +28,10 @@
       { endpoint: 'search' }
     ]
   end
-  let(:method) { 'GET' }
+  let(:method) { 'POST' }
 
   let(:body) do
-    nil
+    {}
   end
 
   let(:params) do
@@ -43,7 +43,7 @@
   end
 
   it 'has a default value for index' do
-    expect(client_double.search())
+    expect(client_double.search(body: {}))
   end
 
   context 'when a request definition is specified' do
@@ -78,7 +78,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.search(index: 'foo'))
+      expect(client_double.search(index: 'foo', body: {}))
     end
   end
 
@@ -99,7 +99,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.search(index: ['foo', 'bar']))
+      expect(client_double.search(index: ['foo', 'bar'], body: {}))
     end
   end
 
@@ -113,7 +113,7 @@
     end
 
     it 'performs the request' do
-      expect(client_double.search(search_type: 'count'))
+      expect(client_double.search(search_type: 'count', body: {}))
     end
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/terms_enum_spec.rb b/elasticsearch-api/spec/unit/actions/terms_enum_spec.rb
index a183a53c31..7d8be99b2d 100644
--- a/elasticsearch-api/spec/unit/actions/terms_enum_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/terms_enum_spec.rb
@@ -29,25 +29,10 @@
     ]
   end
 
-  context 'without a body' do
-    let(:method) { 'GET' }
-    let(:body) { nil }
+  let(:method) { 'POST' }
+  let(:body) { {} }
 
-    it 'performs a GET request' do
-      expect(client_double.terms_enum(index: 'foo')).to be_a Elasticsearch::API::Response
-    end
-  end
-
-  context 'with a body' do
-    let(:method) { 'POST' }
-    let(:body) { {} }
-
-    it 'performs a POST request' do
-      expect(client_double.terms_enum(index: 'foo', body: body)).to be_a Elasticsearch::API::Response
-    end
-  end
-
-  it 'requires the :index argument' do
-    expect { client.terms_enum }.to raise_exception(ArgumentError)
+  it 'performs a POST request' do
+    expect(client_double.terms_enum(index: 'foo', body: body)).to be_a Elasticsearch::API::Response
   end
 end
diff --git a/elasticsearch-api/spec/unit/actions/update_by_query_spec.rb b/elasticsearch-api/spec/unit/actions/update_by_query_spec.rb
index b67daa0b6c..0165a001c5 100644
--- a/elasticsearch-api/spec/unit/actions/update_by_query_spec.rb
+++ b/elasticsearch-api/spec/unit/actions/update_by_query_spec.rb
@@ -23,13 +23,13 @@
       'POST',
       'foo/_update_by_query',
       {},
-      nil,
+      {},
       {},
       { defined_params: { index: 'foo' }, endpoint: 'update_by_query' }
     ]
   end
 
   it 'performs the request' do
-    expect(client_double.update_by_query(index: 'foo')).to be_a Elasticsearch::API::Response
+    expect(client_double.update_by_query(index: 'foo', body: {})).to be_a Elasticsearch::API::Response
   end
 end

From 6a5cf11c82b81c0b6f2385601403e2284621a536 Mon Sep 17 00:00:00 2001
From: Fernando Briano <fernando@picandocodigo.net>
Date: Fri, 10 Oct 2025 16:58:03 +0100
Subject: [PATCH 3/3] [Client] Updates elasticsearch tests for APIs with
 required body

---
 .../elasticsearch_product_validation_spec.rb  | 16 +++++++--------
 elasticsearch/spec/unit/headers_spec.rb       | 20 +++++++++----------
 elasticsearch/spec/unit/opaque_id_spec.rb     |  8 ++++----
 3 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/elasticsearch/spec/unit/elasticsearch_product_validation_spec.rb b/elasticsearch/spec/unit/elasticsearch_product_validation_spec.rb
index 2b8c6e9856..c8434dd5cd 100644
--- a/elasticsearch/spec/unit/elasticsearch_product_validation_spec.rb
+++ b/elasticsearch/spec/unit/elasticsearch_product_validation_spec.rb
@@ -21,11 +21,11 @@
 describe 'Elasticsearch: Validation' do
   let(:host) { 'http://localhost:9200' }
   let(:count_request_stub) do
-    stub_request(:get, "#{host}/_count")
-      .to_return(status: status, body: nil, headers: headers)
+    stub_request(:post, "#{host}/_count")
+      .to_return(status: status, body: '', headers: headers)
   end
   let(:status) { 200 }
-  let(:body) { nil }
+  let(:body) { '' }
   let(:headers) { {} }
   let(:client) { Elasticsearch::Client.new }
 
@@ -39,7 +39,7 @@
       expect(client.instance_variable_get('@verified')).to be false
       count_request_stub
       expect do
-        client.count
+        client.count(body: '')
       end.to raise_error Elastic::Transport::Transport::Errors::Unauthorized
       expect(client.instance_variable_get('@verified')).to be true
 
@@ -61,7 +61,7 @@
       expect(client.instance_variable_get('@verified')).to be false
       count_request_stub
       expect do
-        client.count
+        client.count(body: '')
       end.to raise_error Elastic::Transport::Transport::Errors::Forbidden
       expect(client.instance_variable_get('@verified')).to be true
 
@@ -83,7 +83,7 @@
       expect(client.instance_variable_get('@verified')).to be false
       count_request_stub
       expect do
-        client.count
+        client.count(body: '')
       end.to raise_error Elastic::Transport::Transport::Errors::RequestEntityTooLarge
       expect(client.instance_variable_get('@verified')).to be true
 
@@ -107,7 +107,7 @@
       expect(client.instance_variable_get('@verified')).to be false
       count_request_stub
       expect do
-        client.count
+        client.count(body: '')
       end.to raise_error Elastic::Transport::Transport::Errors::ServiceUnavailable
       expect(client.instance_variable_get('@verified')).to be false
 
@@ -131,7 +131,7 @@
     it 'Makes requests and passes validation' do
       expect(client.instance_variable_get('@verified')).to be false
       count_request_stub
-      client.count
+      client.count(body: '')
       expect(client.instance_variable_get('@verified')).to be true
     end
   end
diff --git a/elasticsearch/spec/unit/headers_spec.rb b/elasticsearch/spec/unit/headers_spec.rb
index 3751c74488..803e604d02 100644
--- a/elasticsearch/spec/unit/headers_spec.rb
+++ b/elasticsearch/spec/unit/headers_spec.rb
@@ -24,9 +24,9 @@
 
     it 'performs the request with the header' do
       allow(client).to receive(:perform_request) { OpenStruct.new(body: '') }
-      expect { client.search(headers: headers) }.not_to raise_error
+      expect { client.search(headers: headers, body: '') }.not_to raise_error
       expect(client).to have_received(:perform_request)
-        .with('GET', '_search', {}, nil, headers, { endpoint: 'search' })
+        .with('POST', '_search', {}, '', headers, { endpoint: 'search' })
     end
   end
 
@@ -47,9 +47,9 @@
 
       expect_any_instance_of(Faraday::Connection)
         .to receive(:run_request)
-          .with(:get, 'http://localhost:9200/_search', nil, expected_headers) { OpenStruct.new(body: '') }
+          .with(:post, 'http://localhost:9200/_search', '', expected_headers) { OpenStruct.new(body: '') }
 
-      client.search(headers: param_headers)
+      client.search(headers: param_headers, body: '')
     end
   end
 
@@ -73,8 +73,8 @@
 
       expect_any_instance_of(Faraday::Connection)
         .to receive(:run_request)
-              .with(:get, 'http://localhost:9200/_search', nil, connection_headers) { OpenStruct.new(body: '') }
-      client.search
+              .with(:post, 'http://localhost:9200/_search', '', connection_headers) { OpenStruct.new(body: '') }
+      client.search(body: '')
     end
   end
 
@@ -98,8 +98,8 @@
 
       expect_any_instance_of(Faraday::Connection)
         .to receive(:run_request)
-              .with(:get, 'http://localhost:9200/_search', nil, connection_headers) { OpenStruct.new(body: '') }
-      client.search
+              .with(:post, 'http://localhost:9200/_search', '', connection_headers) { OpenStruct.new(body: '') }
+      client.search(body: '')
     end
   end
 
@@ -117,8 +117,8 @@
 
       expect_any_instance_of(Faraday::Connection)
         .to receive(:run_request)
-              .with(:get, 'http://localhost:9200/_search', nil, expected_headers) { OpenStruct.new(body: '') }
-      client.search
+              .with(:post, 'http://localhost:9200/_search', '', expected_headers) { OpenStruct.new(body: '') }
+      client.search(body: '')
     end
   end
 end
diff --git a/elasticsearch/spec/unit/opaque_id_spec.rb b/elasticsearch/spec/unit/opaque_id_spec.rb
index 09e1a5232d..19a122234a 100644
--- a/elasticsearch/spec/unit/opaque_id_spec.rb
+++ b/elasticsearch/spec/unit/opaque_id_spec.rb
@@ -27,9 +27,9 @@
 
   context 'when x-opaque-id is set' do
     it 'uses x-opaque-id on a request' do
-      client.search(opaque_id: '12345')
+      client.search(opaque_id: '12345', body: '')
       expect(transport).to have_received(:perform_request)
-        .with('GET', '_search', {}, nil, { 'X-Opaque-Id' => '12345' }, {:endpoint=>"search"})
+        .with('POST', '_search', {}, '', { 'X-Opaque-Id' => '12345' }, {:endpoint=>"search"})
     end
   end
 
@@ -40,9 +40,9 @@
     end
 
     it 'uses x-opaque-id on a request' do
-      expect { client.search(opaque_id: '12345') }.not_to raise_error
+      expect { client.search(opaque_id: '12345', body: '') }.not_to raise_error
       expect(transport).to have_received(:perform_request)
-        .with('GET', '_search', {}, nil, { 'X-Opaque-Id' => 'elastic_cloud12345' }, {:endpoint=>"search"})
+        .with('POST', '_search', {}, '', { 'X-Opaque-Id' => 'elastic_cloud12345' }, {:endpoint=>"search"})
     end
   end
 end