google ads api Invalid_grant

[Muhammad Kaleem]

hi . i am using firbebase with Oauth with the following scopes

[

"https://www.googleapis.com/auth/adwords",

"https://www.googleapis.com/auth/userinfo.email",

"openid",

"email",

"profile",

]

while i am calling the google ads api with the resfresh token given by firebase i am having a error-->  Error: 16 UNAUTHENTICATED: Failed to retrieve auth metadata with error: invalid_grant
but when i use oauthAccessToken   it's working fine . so i want to know the expire time to  oauthAccessToken  or  how can i refresh these token so user don;'t have to login again and again .
thanks 

[Lambert Beekhuis]

An accessToken is usually valid for 1 hour. After that you must refresh indeed.  If you follow the examples of Google Ads, is always retrieves a new Access Token

[Google Ads API Forum Advisor]

Hi All,

Thanks for reaching out to the Google Ads API team. I hope you are doing well today.
 

The "invalid_grant ” error usually indicates an issue with the refresh token. That said, you will need to regenerate credentials and refresh tokens. You may refer here to this guide for the steps on how you can regenerate credentials and refresh tokens. Also, I agree on what @Lambert said about validity of refresh token.
 

Furthermore, you may check this document to read more information about refresh token expiration.

Regards,

Darwin Google Ads API Team

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