I have seen an update that Google+ APIs will be shut down on March 7, 2019. I am working on a maintenance project which has below two google apis. But I am not sure whether these two calls are google or google plus api. If it is google plus then I have to replace it.
https://www.googleapis.com/oauth2/v4/token
https://people.googleapis.com/v1/people/me?personFields=birthdays
Appreciate your response on this.
Neither of these use the Google+ API. The first is part of the OAuth and OpenID Connect framework and the second is the Google People API.
You should be good for both.