FastAPI

The didactic-fastapi distribution.

from didactic.fastapi import (
    as_request,
    as_response,
    register_validation_handler,
)

as_request(model)

Return the Pydantic adapter for use as a FastAPI request body type. The conversion is cached, so repeated calls with the same input return the same Pydantic class.

as_response(model)

Synonym of as_request. Use whichever name reads naturally in your route signatures.

register_validation_handler(app)

Install an exception handler on app that turns dx.ValidationError into a 422 response shaped like FastAPI's own validation errors.

For usage examples, see Guides > FastAPI.