A plug to convert types and validate the HTTP request parameters by the schemas of the OpenAPI definition.

The schema options can be found in the generated pre- plug handler file, the full list:

• :query_schema
• :header_schema
• :cookie_schema
• :body_schema

All of these options are fully map and generated from the corresponding definition of the OpenAPI Specification.

When the query parameters are verified by the validation of :query_schema, the coverted types of query parameters are reserved in :query_params and :params field of the Plug.Conn.

When the header parameters are verified by the validation of :header_schema, the converted types of header parameters are reserved in :req_headers field of the Plug.Conn.

When the cookie parameters are verified by the validation of :cookie_schema, the coverted types of cookie parameters are reserved in :req_cookies field of the Plug.Conn.

When the request body is verified by the validation of :body_schema, the coverted types of request body are reserved in :body_params and :params field of the Plug.Conn.