Changed behaviour for @app.post after 2.8

[whoulden]

Question

I've noticed a change after version 2.8 when using @app.post

I'm using app.post to manage Microsoft authentication

@app.post("/auth/microsoft", response_class=JSONResponse)
async def auth_microsoft(token: Token, response: Response, request: Request):
    ret = await auth_microsoft_token(token, response, request)
    data = {'status': ret.get('status'), 'next': HOMEPAGE, 'message': ret.get('message')}
    return JSONResponse(content=data)

it receives and decodes a microsoft token and performs authentication logic - part of which writes some data to app.storage.user, then passes the response back to Microsoft authentication popup

this works fine in 2.8 and many versions before

but in later versions trying to set a value to app.storage.user returns this error:

user storage for should be created before accessing it

Is there a way to get around this issue ?

[rodja]

I'll close this, because the issue #4440 was created.