grails

i am trying to implement a simple google login in our web application and i am getting 400 error when posting to token url
```<https://oauth2.googleapis.com/token>```


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I am using <https://mvnrepository.com/artifact/com.github.scribejava/scribejava-apis/8.3.3> in my controller.

I believe <https://github.com/grails-plugins/grails-spring-security-oauth2-google/blob/master/grails-app/services/grails/plugin/springsecurity/oauth2/google/GoogleOAuth2Service.groovy|https://github.com/grails-plugins/grails-spring-security-oauth2-google/blob/master[…]/plugin/springsecurity/oauth2/google/GoogleOAuth2Service.groovy> was the initial example I followed, but it has been many years, so I am not 100% sure.