google plus api: “insufficientPermissions” error

Question

I am searching the google plus with api

Here is my Url: https://www.googleapis.com/plus/v1/activities?query=internet%20marketing&access_token=xxxxxxxxxxxxxxxxx

Answer 1

According to @Lee answer, now the Google V3 OAuth AccessToken validating endpoint is:

https://www.googleapis.com/oauth2/v3/tokeninfo?access_token=

You can refer google document below: (In OAUTH 2.0 ENDPOINTS Tab)

https://developers.google.com/identity/protocols/OAuth2UserAgent#validate-access-token