gapi.auth2 can not get access_token

Question

I'm trying to implement resumable uploads for youtube using the javascript client API. I've managed to get the login working using the g-signin2 button, but I can't get the access_token to send with the requests. This is how I render the sign in button:

<span
  class="g-signin2"
  data-onsuccess="youtubeUploaderSigninCallback"
  data-scope="https://www.googleapis.com/auth/youtube.upload https://www.googleapis.com/auth/youtube">
</span>

And I'm using the following script files loaded from google (I can't seem to get one working without the other)

<script src="https://apis.google.com/js/platform.js" async defer></script>
<script src="https://apis.google.com/js/client.js" async defer></script>

I'm using code edited samples from https://developers.google.com/youtube/v3/code_samples/javascript#upload_video for resumable uploads using XHR. But these examples use the auth functions marked as deprecated here: https://developers.google.com/api-client-library/javascript/reference/referencedocs So the main thing I changed is using the auth2 and g-signin2 instead of result.access_token and g-signin.

So I've been trying to use the auth2 functions to get the access tokens, but the access_token property is undefined when I execute the following code

gapi.auth2.getAuthInstance().currentUser.get().getAuthResponse()

The way I'm trying to get the access token is documented here: https://developers.google.com/api-client-library/javascript/features/cors#making-authenticated-requests

So these are my options, I guess:

1. find a way to get the access token out of the user object
   • (I found that user.hg.access_token contains the token I need
   • but "hg" seems a minified property to me
   • so I'm not intending to use this as it might change with updates
   • EDIT: as pointed out in the comments hg is a minified property indeed and now no longer exists
2. add progress events to gapi.client.request()
   • but the xhr object doesn't seem to be exposed
3. use code documented as deprecated

Can anyone help me with this? I've been looking for an acceptable solution for a few hours and I feel like crying now... all alone and desperate.

Thanks in advance, Robbe

PS: I've also posted this question on google groups

Singultus

FYI: I am now using the "g-signin" button (not g-signin2) and everything works, but I don't know if this is very future proof. So answers are still welcome. – Singultus

I wish you the best of luck in finding an answer. According to developers.google.com/identity/sign-in/web/…, the AuthResponse is supposed to have an access token. Strange that it's not there. – Aldine

I implemented the same thing with g-signin2, and I did use hg, but it proved you right: the property is gone now and and is renamed to Zi. Still looking for a way to properly fetch it from the response. – Kioto

For now I'm just sticking with the g-signin option. This is still working and I hope it stays that way until g-signin2 is "fixed". Glad I did not depend on the hg property. Thanks for sharing, I'll put this in the question. – Singultus

Answer 1

gapi.auth2.getAuthInstance().currentUser.get().getAuthResponse().access_token

Ortega

To improve your answer, you should add some explanation of what your answer does, how to use it and how it answers the question. – Outlawry

stackoverflow.com/posts/50864432 getAuthResponse(true) without true the access token is undefined – Henig

Thanks for the above comment! most documentation doesn't include the true parameter. That solved my problem – Luncheon

Answer 2

This snippet is working perfectly

gapi.auth2.getAuthInstance().currentUser.get().getAuthResponse().access_token

gapi.auth2.getAuthInstance().currentUser.get().getAuthResponse().id_token

etc...

Schonfeld

Isn't this the same answer provided in 2018? – Boardman