Hello, The 'invalid_grant' error is usually noticed when the access token or refresh token is invalid or incorrect. To verify this, you can obtain the access token being used for the request, then pass that through this tokeninfo <https://developers.google.com/apis-explorer/#p/oauth2/v2/oauth2.tokeninfo> endpoint to retrieve the token details. Additionally, could you confirm if you're generating the refresh token in every API call? If so, please note that there is a limit <https://developers.google.com/identity/protocols/OAuth2#expiration> of 50 refresh tokens per user per account. If you're trying to generate a refresh token above the specified limit, they will be invalidated.
This said, the OAuth2TokenRefresher.php <https://github.com/googleads/googleads-php-lib/blob/master/src/Google/AdsApi/Common/Util/OAuth2TokenRefresher.php> provides functionality to retrieve OAuth2 access tokens and handling refreshing the token if it is expired. By default, the client libraries automatically refresh expired access tokens. As for your second concern, you will have to accept the prompt manually once for every user. Let me know if you have any other questions. Thanks, Bharani, AdWords API Team On Monday, October 2, 2017 at 3:06:14 PM UTC-4, sprytar....@gmail.com wrote: > > Hi, The previous developer used the function TargetingIdeaService to get > new keywords, based on one old one. We have a file with constant > settings: adsapi_php.ini.But today we have error > Client error: `POST https://www.googleapis.com/oauth2/v4/token` > <https://www.googleapis.com/oauth2/v4/token> resulted in a `400 Bad > Request` response: > { "error": "invalid_grant", > "error_description": "Bad Request" } > Can I somehow get a long-term token to always get new keywords, do not > force the user to give access to the application? > Thanks > -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and Google+: https://googleadsdeveloper.blogspot.com/ https://plus.google.com/+GoogleAdsDevelopers/posts =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/2d66d135-c89e-4e84-88de-84184ae13331%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
