Java

Google OAuth2 v3 userinfo (https://www.googleapis.com/oauth2/v3/userinfo)

See more Google APIs Examples

Demonstrates how to get the Google OAuth2 v3 userinfo.

Important: Make sure the OAuth2 access token included "profile" in the list of scopes.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        // It is assumed we previously obtained an OAuth2 access token.
        // This example loads the JSON access token file
        // originally obtained by this example: Get Google People API OAuth2 Access Token
        // or refreshed by this example: Refresh Google People API OAuth2 Access Token

        JsonObject jsonToken = new JsonObject();
        try {
            jsonToken.loadFile("qa_data/tokens/googlePeople.json");
        } catch (ChilkatException e) {
            System.out.println("Failed to load googleContacts.json");
            return;
        }

        Http http = new Http();

        // -------------------------------------------------------------------------------------
        // Make sure the access token was obtained with "profile" included in the list of scopes.
        // -------------------------------------------------------------------------------------
        http.setAuthToken(jsonToken.stringOf("access_token"));

        StringBuilder sbResponseBody = new StringBuilder();
        try {
            http.quickGetSb("https://www.googleapis.com/oauth2/v3/userinfo", sbResponseBody);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            System.out.println(sbResponseBody.getAsString());
            return;
        }

        // Sample JSON Response

        JsonObject json = new JsonObject();
        json.setEmitCompact(false);
        json.load(sbResponseBody.getAsString());
        System.out.println(json.emit());

        // Sample response:

        // {
        //   "sub": "119999690625687999964",
        //   "name": "Matt",
        //   "given_name": "Matt",
        //   "picture": "https://lh3.googleusercontent.com/-b4...eg3Zjo/AAAAAAAAAAI/AAAAAAAAAAA/AMZuu....3RpdA/s96-c/photo.jpg",
        //   "locale": "en"
        // }
        //
    }
}