make_response

Sometimes it is necessary to set additional headers in a view. Because views do not have to return response objects but can return a value that is converted into a response object by Flask itself, it becomes tricky to add headers to it. This function can be called instead of using a return and you will get a response object which you can use to attach headers.

If view looked like this and you want to add a new header::

    def index():
        return render_template('index.html', foo=42)

You can now do something like this::

    def index():
        response = make_response(render_template('index.html', foo=42))
        response.headers['X-Parachutes'] = 'parachutes are cool'
        return response

This function accepts the very same arguments you can return from a
view function.  This for example creates a response with a 404 error
code::

    response = make_response(render_template('not_found.html'), 404)

The other use case of this function is to force the return value of a
view function into a response which is helpful with view
decorators::

    response = make_response(view_function())
    response.headers['X-Parachutes'] = 'parachutes are cool'

Internally this function does the following things:

-   if no arguments are passed, it creates a new response argument
-   if one argument is passed, :meth:`flask.Flask.make_response`
    is invoked with it.
-   if more than one argument is passed, the arguments are passed
    to the :meth:`flask.Flask.make_response` function as tuple.

.. versionadded:: 0.6

def make_response(
    *args: Any
) - > Response

Sometimes it is necessary to set additional headers in a view. Because views do not have to return response objects but can return a value that is converted into a response object by Flask itself, it becomes tricky to add headers to it. This function can be called instead of using a return and you will get a response object which you can use to attach headers.

Parameters

Name	Type	Description
*args	Any	The same arguments that can be returned from a Flask view function, such as a body string, a status code, or a dictionary of headers

Returns

Type	Description
Response	A response object that can be modified before being returned from a view function