Looking for logging into the Google Api Javascript site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Google Api Javascript site. After that you can login as usual with your login credentials.
https://developers.google.com/identity/sign-in/web/sign-in
https://developers.google.com/api-client-library/javascript/features/authentication
http://usefulangle.com/post/55/google-login-javascript-api
https://firebase.google.com/docs/auth/web/google-signin?hl=es-419
https://www.codexworld.com/login-with-google-account-using-javascript/
https://github.com/google/google-api-javascript-client/issues/473
https://stackoverflow.com/questions/7947038/how-to-authenticate-with-google-via-oauth-2-0-in-a-popup
https://stackoverflow.com/questions/27905780/google-sign-in-using-javascript-api-without-triggering-popup
https://www.ladrupalera.com/es/drupal/desarrollo/javascript/como-usar-una-api-de-google-con-autenticacion-traves-de-oauth2
https://flaviocopes.com/google-api-authentication/
https://codeburst.io/react-authentication-with-twitter-google-facebook-and-github-862d59583105
https://medium.com/@pablo127/google-api-authentication-with-oauth-2-on-the-example-of-gmail-a103c897fd98
https://www.npmjs.com/package/googleapis