Handling Incoming Requests ========================== Adding custom deserializers --------------------------- .. code-block:: python import json from tornado_openapi3.handler import OpenAPIRequestHandler class ResourceHandler(OpenAPIRequestHandler): custom_media_type_deserializers = { "application/vnd.example.resource+json": json.loads, } ... Adding custom formatters ------------------------ .. code-block:: python import datetime from tornado_openapi3.handler import OpenAPIRequestHandler class USDateFormatter: def validate(self, value: str) -> bool: return bool(re.match(r"^\d{1,2}/\d{1,2}/\d{4}$", value)) def unmarshal(self, value: str) -> datetime.date: return datetime.datetime.strptime(value, "%m/%d/%Y").date() class ResourceHandler(OpenAPIRequestHandler): custom_formatters = { "usdate": USDateFormatter(), } ...