I can't obtain a refresh_token from AdWords API despite I set access_type to "offline"

[Sebastian Piskorski]

I send following request: https://accounts.google.com/o/oauth2/v2/auth?approval_prompt=force&response_type=code&client_id=xxxxxxxx-xxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com&redirect_uri=https%3A%2F%2Fpanel.piwik.pro%2Fintegrate%2Fadwords&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fadwords&access_type=offline&state=xxxx-xxx-xxx-xxx

User selects his account and authenticate my application to use his AdWords data. In response I get code https://mysite.tld/integrate/adwords?state=xxx-xxx-xxxx&code=4/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#

And my service process this code passing it to Google SDK. Using `SimpleOAuth2Handler` method `GetAuthorizationUrl` is called. Goolge SDK then tries to obtain token sending following request, but response have no refresh_token.

https://www.googleapis.com/oauth2/v4/token?code=4%2Fxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&client_id=xxxxxxxx-xxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com&client_secret=xxxxx-xxxxxxxxxxxxxxxxxx&redirect_uri=https%3A%2F%2Fmysite.tld%2Fintegrate%2Fadwords&grant_type=authorization_code

Example response body:

{
 "access_token": "ya29.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
 "token_type": "Bearer",
 "expires_in": 3341
}

I use google-php-lib v201605.

How to obtain refresh_token. What do I miss?

[Sebastian Piskorski]

I have even used example from library: GetRefreshToken.php

This is the output:

/usr/local/bin/php /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php
Log in to your AdWords account and open the following URL:
https://accounts.google.com/o/oauth2/v2/auth?response_type=code&client_id=xxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com&redirect_uri=https%3A%2F%2Fmysite.tld%2Fintegrate%2Fadwords&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fadwords&access_type=offline


After approving the token enter the authorization code here: 4/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


PHP Notice:  Undefined index: refresh_token in /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php on line 90
Notice: Undefined index: refresh_token in /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php on line 90
PHP Stack trace:


PHP   1. {main}() /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php:0
Call Stack:
PHP Notice:  Undefined index: refresh_token in /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php on line 92
    0.0008     241592   1. {main}() /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php:0


Your refresh token is:


Notice: Undefined index: refresh_token in /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php on line 92


Call Stack:
    0.0008     241592   1. {main}() /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php:0


In your auth.ini file, edit the refresh_token line to be:
refresh_token = ""
PHP Stack trace:
PHP   1. {main}() /path/to/app/vendor/googleads/googleads-php-lib/examples/AdWords/Auth/GetRefreshToken.php:0


Process finished with exit code 0

[Shwetha Vastrad (AdWords API Team)]

Hi Sebastian,

Can you confirm that you followed the steps provided here to retrieve your refresh token? The reason GetRefreshToken.php didn't work either is because the response didn't contain a refresh token. Could you try getting the refresh token using this command? 

curl \

     -d code=your-authorization-code \
     -d client_id=your-client-id \
     -d client_secret=your-client-secret \
     -d redirect_uri=your-redirect-uri \
     -d grant_type=authorization_code https://accounts.google.com/o/oauth2/token

This will help me determine if the credentials have been setup correctly. Please use Reply privately to author if you're sending private information.

Regards,

Shwetha, AdWords API Team.

[Sebastian Piskorski]

Solution was to use:

prompt=consent

istead of:

approval_prompt=force

because API have changed.

This can be marked as solved.