flash

Flashes a message to the next request. In order to remove the flashed message from the session and to display it to the user, the template has to call :func:get_flashed_messages.

def flash(
    message: str,
    category: str = "message"
) - > None

Flashes a message to the next request. In order to remove the flashed message from the session and to display it to the user, the template has to call :func:get_flashed_messages.

Parameters

Name	Type	Description
message	str	the message to be flashed.
category	str = "message"	the category for the message. The following values are recommended: 'message' for any kind of message, 'error' for errors, 'info' for information messages and 'warning' for warnings. However any kind of string can be used as category.

Returns

Type	Description
None	Nothing is returned; the message is stored in the session for the next request.