I am developing a Web Application based on Google App Engine. This application uses Google Sign-In JavaScript platform library for Web for Oauth 2.0 and Google API Client Library for JavaScript to access Google APIs.
We recently received the following notice.
https://developers.googleblog.com/2022/03/gis-jsweb-authz-migration.html
Complete your migration prior to March 31, 2023, after which the Platform Library will no longer be available for download and web apps relying upon deprecated authorization features to obtain access tokens for calling Google APIs will no longer work as intended.
Web applications using gapi.client from the Google API Client Library implicitly load and use the Platform Library’s soon to be deprecated gapi.auth2 module when working with access tokens to call Google APIs. Updates to your web app to explicitly include the new Identity Services library, manage access token requests, and replace auth2 module references with newer equivalent methods are necessary.
In accordance with this notice, I have replaced Google Sign-In JavaScript platform library for Web with Google Identity Services JavaScript library. But I plan to continue to use Google API Client Library for JavaScript for access to the Google API.
Will Google API Client Library for JavaScript be unavailable after March 31, 2023?