💭 Handling Errors - FastAPI
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!https://fastapi.tiangolo.com/tutorial/handling-errors/

Date: December 17, 2023

Image: Handling Errors - FastAPI — FastAPI framework, high performance, easy to learn, fast to code, ready for production <https://fastapi.tiangolo.com/assets/images/social/tutorial/handling-errors.png> Handling Errors - FastAPI FastAPI framework, high performance, easy to learn, fast to code, ready for production fastapi.tiangolo.com

This page shows how to customize your fastapi </fastapi/> errors. I found this very useful to setup common templates so that I can return the same 404’s both programatically and by default, so it all looks the same to the end user.

```
from fastapi import FastAPI, Request
from fastapi.responses import JSONResponse


class UnicornException(Exception):
    def __init__(self, name: str):
        self.name = name


app = FastAPI()


@app.exception_handler(UnicornException)
async def unicorn_exception_handler(request: Request, exc: UnicornException):
    return JSONResponse(
        status_code=418,
        content={"message": f"Oops! {exc.name} did something. There goes a rainbow..."},
    )


@app.get("/unicorns/{name}")
async def read_unicorn(name: str):
    if name == "yolo":
        raise UnicornException(name=name)
    return {"unicorn_name": name}
```

NOTE
│ This post is a thought </thoughts/>. It’s a short note that I make about someone else’s content online #thoughts </tags/thoughts/>