Global error handler for any exception

Question

Is there a way to add a global catch-all error handler in which I can change the response to a generic JSON response?

I can\'t use the got_request_exception

Answer 1

A cleaner way to implement this in Flask >=0.12 would be to explicitly register the handler for every Werkzeug exception:

from flask import jsonify
from werkzeug.exceptions import HTTPException, default_exceptions

app = Flask('test')

def handle_error(error):
    code = 500
    if isinstance(error, HTTPException):
        code = error.code
    return jsonify(error='error', code=code)

for exc in default_exceptions:
    app.register_error_handler(exc, handle_error)