Custom Interrupt / Exception Display in Flask

Question

The default message for Flask 400( abort()) exception is :

{
  "message": "The browser (or proxy) sent a request that this server could not understand."
}

For 404:

{
  "message": "The requested URL was not found on the server.  If you entered the URL manually please check your spelling and try again. You have requested this URI [/obj/] but did you mean /obj/ or /obj/<int:id>/ or /obj/<int:id>/kill/ ?"
}

I am having trouble understanding these messages when I receive them as responses in my API (especially the first one, I thought something was wrong with the encryption or headers) and it seems to me tiring to try to redefine the text manually for each exception abort(). Therefore, I change the display:

from flask import abort
from werkzeug.exceptions import HTTPException


class BadRequest(HTTPException):
    code = 400
    description = 'Bad request.'


class NotFound(HTTPException):
    code = 404
    description = 'Resource not found.'


abort.mapping.update({
    400: BadRequest,
    404: NotFound
})

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Answer 1

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Answer 2

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from flask import abort

abort(404, "And here why.")