Google-api-php Refresh Token returns invalid_grant

Question

I\'ve nearly searched every result of the first page of google for this. But can\'t seem to find the answer. I\'m working with a refresh_token by Google\'s API and receiving

Answer 1

The function that worked for me is as follows

$client->setAccessType("refresh_token");

Answer 2

I ran into something similar and the problem for me was my system clock (inside the Docker VM where I was running the code) was not synchronized with the real time. So you are requesting a token with a created date too far in the past or future, which OAuth is rejecting.

I was tipped of by the report here.

Answer 3

You'll get an "invalid_grant" error if you try to refresh when the token isn't expired.

Instead of this:

$client->refreshToken(file_get_contents('../_config/refreshtoken.conf'));

Use this:

$client->setAccessToken(file_get_contents('../_config/refreshtoken.conf'));

Once your token expires you refresh should work.

Answer 4

The invalid_grant means either means that the authorization code has already been used (available in $GET['code']) or the type of application configured in the Google APIs Console is invalid.

Make sure you select "Web Application" when registering your app in the Google APIs Console.

Answer 5

Before Authenticate, there must be something like:

$client->grantType("refresh_token")