Google app engine authorization returning null

Question

I have the following code, which I am using successfully in another program

index.html Eat Fresh

</html>

init.js

function init() {
    CLIENT_ID = "927885761089.apps.googleusercontent.com"
    SCOPES = ["https://www.googleapis.com/auth/userinfo.email"]
    gapi.client.load('oauth2', 'v2', signin)
}

function signin() {
    gapi.auth.authorize({client_id: CLIENT_ID, scope: SCOPES, immediate: true}, userAuthed)
}

function userAuthed() {
    console.log(gapi.auth.getToken())
    console.log(gapi.auth.getToken().accessToken)
    gapi.client.oauth2.userinfo.get().execute(function(resp) {
    checkEmail(resp)
    })
}

function checkEmail(user) {
    var validEmail = (whiteList.indexOf(user.email) !== -1)
    if (!user.code && validEmail) {
        startApp()
    } else {
        displayError(user.email)
    }
}

gapi.auth.getToken() is returning null and to my knowledge that means that my I am not logged in. I don't know how to refresh the login or force a log out. Any help would be appreciated.

Hi, You talk about Google app engine but I can see only js code. So to get an email address via oauth2 you can see this link http://stackoverflow.com/questions/11606101/how-to-get-user-email-from-google-plus-oauth and you can also test the API in the oauth2 play ground https://developers.google.com/oauthplayground/ — olituks, May 14 '14 at 13:51
After some playing I've found that I was never prompted to allow this app to view my profile. I tested this theory by revoking the privileges for a similar app and it showed the same result in debugging. However, I don't know how to reprompt the user for this and now have 2 broken apps. — Phedg1, May 14 '14 at 20:41

score 1 · Accepted Answer · answered May 15 '14 at 05:03

Changing the the following

gapi.auth.authorize({client_id: CLIENT_ID, scope: SCOPES, immediate: false}, userAuthed)

will prompt the user to give permission to the app, thus allowing for an authorized access token and for the remainder of the code to work.

Google app engine authorization returning null

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