Exceptions | Robyn Framework

Handling Errors

Batman learned how to handle errors for different exceptions in his application. He wrote the following code to handle exceptions:

Request

GET

/items/:item_id

from robyn import Robyn, HTTPException, status_codes

app = Robyn(__file__)

items = {"foo": "The Foo Wrestlers"}

@app.get("/items/:item_id")
async def read_item(request, item_id):
    if item_id not in items:
        raise HTTPException(status_code=status_codes.HTTP_404_NOT_FOUND, detail="Item not found")
    return {"item": items[item_id]}

Custom Exception Handler

Batman learned how to create custom error handlers for different exception types in his application. He wrote the following code to handle exceptions and return a custom error response:

Request

GET

/hello_world

@app.exception
def handle_exception(error: Exception):
    return Response(status_code=500, description=f"error msg: {error}", headers={})

What's next?

Now, Batman wanted to scale his application across multiple cores. Robyn led him to Scaling.

Scaling