Validators for records used with [AsParameters] create unused component schemas #180
Description
When a record is used in an API with [AsParameters] and it has a validator, MicroElements.Swashbuckle.FluentValidation creates unused schemas in the "components" > "schemas" section of the OpenAPI schema for the whole record.
This happens in .NET 10 with v7.0.3 of MicroElements.Swashbuckle.FluentValidation, and v12.0.0 of FluentValidation.
Minimal reproduction: https://github.com/geraldhumphries/fluentvalidation-extraschemas-minimal
Example code:
app.MapGet("/weatherforecast", ([AsParameters] WeatherForecastRequest request) =>
{
...
})
.WithName("GetWeatherForecast");
public record WeatherForecastRequest(int Page, int PageSize);
public class WeatherForecastRequestValidator : AbstractValidator<WeatherForecastRequest>
{
public WeatherForecastRequestValidator()
{
RuleFor(x => x.Page).GreaterThan(0);
RuleFor(x => x.PageSize)
.GreaterThan(0)
.LessThanOrEqualTo(500);
}
};
Resulting schema (the unused schema is named "WeatherForecastRequest"):
Details
{
"openapi": "3.0.4",
"info": {
"title": "OpenAPISchemaRepro",
"version": "1.0"
},
"paths": {
"/weatherforecast": {
"get": {
"tags": [
"OpenAPISchemaRepro"
],
"operationId": "GetWeatherForecast",
"parameters": [
{
"name": "Page",
"in": "query",
"required": true,
"schema": {
"minimum": 0,
"exclusiveMinimum": true,
"type": "integer",
"format": "int32"
}
},
{
"name": "PageSize",
"in": "query",
"required": true,
"schema": {
"maximum": 500,
"exclusiveMaximum": false,
"minimum": 0,
"exclusiveMinimum": true,
"type": "integer",
"format": "int32"
}
}
],
"responses": {
"200": {
"description": "OK",
"content": {
"application/json": {
"schema": {
"type": "array",
"items": {
"$ref": "#/components/schemas/WeatherForecast"
}
}
}
}
}
}
}
}
},
"components": {
"schemas": {
"WeatherForecast": {
"type": "object",
"properties": {
"date": {
"type": "string",
"format": "date"
},
"temperatureC": {
"type": "integer",
"format": "int32"
},
"summary": {
"type": "string",
"nullable": true
},
"temperatureF": {
"type": "integer",
"format": "int32",
"readOnly": true
}
},
"additionalProperties": false
},
"WeatherForecastRequest": {
"type": "object",
"properties": {
"page": {
"minimum": 0,
"exclusiveMinimum": true,
"type": "integer",
"format": "int32"
},
"pageSize": {
"maximum": 500,
"minimum": 0,
"exclusiveMinimum": true,
"type": "integer",
"format": "int32"
}
},
"additionalProperties": false
}
}
},
"tags": [
{
"name": "OpenAPISchemaRepro"
}
]
}The impact of this is that generated clients will get extra unused models, which clutters the API and can be confusing.