[FastAPI overriding response example] #fastapi

example.py

# https://gitter.im/tiangolo/fastapi?at=5d381bbd5ea6e644ec0d620c

import json
import typing

from starlette.responses import Response

class PrettyJSONResponse(Response):
    media_type = "application/json"

    def render(self, content: typing.Any) -> bytes:
        return json.dumps(
            content,
            ensure_ascii=False,
            allow_nan=False,
            indent=4,
            separators=(", ", ": "),
        ).encode("utf-8")
        
# then using it would look like

@app.get("/", response_class=PrettyJSONResponse)
async def get_some_json():
   # ...