How to write a custom error handler about flask_errors_handler

[cs91chris]

Hi, for a customised error response available to all blueprint you have to implement a function with the same interface of this, for example:

def response_builder(self, f):
    @wraps(f)
    def wrapper(*args, **kwargs):
        r, s, h = f(*args, **kwargs)
        # your own custom implementation
        return flask.Response(...)

    return wrapper

and use with:

error = ErrorHandler()
error.init_app(app, response=response_builder)

Instead for a specific blueprint called custom_bp, decorate your custom function, like this:

@error.register(custom_bp)
def custom_error_handler(exc):
    return str(exc), 500, {'Content-Type': 'text/plain'}