How to remove the "format" field for Numeric properties?

[jBernavaPrah]

Hi,

firstly thanks for this crate! Very useful!

As mentioned in the title, how can I programmatically remove the "format" from the json schema?

I'm using the v1.

use schemars::{ schema_for, JsonSchema};


#[derive(JsonSchema)]
struct MyTest {
    value: i32,
}

fn main() {
    let schema = schema_for!(MyTest);
    
   println!("{}", serde_json::to_string_pretty(&schema).unwrap());
    
    // output:
    // {
    //   "$schema": "https://json-schema.org/draft/2020-12/schema",
    //   "title": "MyTest",
    //   "type": "object",
    //   "properties": {
    //     "value": {
    //       "type": "integer",
    //       "format": "int32" <-- this one!
    //     }
    //   },
    //   "required": [
    //     "value"
    //   ]
    // }
    
}

[shmy]

Some issues

[IlyaBizyaev]

This is required to use schemars with ChatGPT's structured outputs. They don't support format and other validation keywords.

I found schemars after reading https://github.com/64bit/async-openai/blob/main/examples/structured-outputs-schemars/src/main.rs.

As a quick hack for my simple schema:

fn remove_property_format(schema: &mut schemars::schema::RootSchema) {
    let object_mut = schema.schema.object();
    for property in object_mut.properties.values_mut() {
        if let schemars::schema::Schema::Object(obj) = property {
            obj.format = None;
        }
    }
}

Used like this:

let mut schema = schema_for!(T);
remove_property_format(&mut schema);
let schema_value = serde_json::to_value(&schema)?;

Also note that you should use signed numbers, or schemars will insert "minimum": 0.0