Streaming gzip response compression

CHANGELOG.adoc

@@ -16,6 +16,7 @@
 https://github.com/oxidecomputer/dropshot/compare/v0.16.4\...HEAD[Full list of commits]
 
 * https://github.com/oxidecomputer/dropshot/pull/1475[#1475] Added `ClientSpecifiesVersionInHeader::on_missing` to provide a default version when the header is missing, intended for use when you're not in control of all clients
+* https://github.com/oxidecomputer/dropshot/pull/1448[#1448] Added support for gzipping responses when clients request it through the `Accept-Encoding` header. Compression is off by default: existing consumers won't see a behavior change unless they opt in with `compression: CompressionConfig::Gzip`.
 
 == 0.16.4 (released 2025-09-04)
 

dropshot/Cargo.toml

@@ -14,6 +14,7 @@ categories = ["network-programming", "web-programming::http-server"]
 workspace = true
 
 [dependencies]
+async-compression = { version = "0.4", features = ["tokio", "gzip"] }
 async-stream = "0.3.6"
 async-trait = "0.1.89"
 base64 = "0.22.1"
@@ -77,6 +78,10 @@ features = [ "derive" ]
 version = "1.48"
 features = [ "full" ]
 
+[dependencies.tokio-util]
+version = "0.7"
+features = [ "io" ]
+
 [dependencies.usdt]
 version = "0.6.0"
 optional = true
@@ -97,6 +102,7 @@ anyhow = "1.0.100"
 async-channel = "2.5.0"
 buf-list = "1.1.2"
 expectorate = "1.2.0"
+flate2 = "1.0"
 hyper-rustls = "0.26.0"
 hyper-staticfile = "0.10"
 lazy_static = "1.5.0"