get report G Suite account

Question

I'm trying to get google report activity by calling https://www.googleapis.com/admin/reports/v1/activity/users/all/applications/meet

I created a service account and I have to use the generated private key (json file) as access token.

My code was:

String PROTECTED_RESOURCE_URL = "https://www.googleapis.com/admin/reports/v1/activity/users/all/applications/meet?eventName=call_ended&maxResults=10&access_token=";
        String graph = "";
        try
        {
            JSONParser parser = new JSONParser();
            JSONObject data = (JSONObject) parser.parse(
                  new FileReader("C:/Users/Administrateur/Desktop/GoogleApis/Interoperability-googleApis/target/classes/my-first-project-274515-361633451f1c.json"));//path to the JSON file.

            String json_private_key = data.toJSONString();

            URL urUserInfo = new URL(PROTECTED_RESOURCE_URL + json_private_key);
            HttpURLConnection connObtainUserInfo = (HttpURLConnection) urUserInfo.openConnection();
            if (connObtainUserInfo.getResponseCode() == HttpURLConnection.HTTP_OK)
            {
                StringBuilder sbLines = new StringBuilder("");

                BufferedReader reader = new BufferedReader(new InputStreamReader(connObtainUserInfo.getInputStream(), "utf-8"));
                String strLine = "";
                while ((strLine = reader.readLine()) != null)
                {
                    sbLines.append(strLine);
                }
                graph = sbLines.toString();
            }
        }
        catch (IOException ex)
        {
            ex.printStackTrace();
        }

        System.out.println("--------------- Result: " + graph);

but I got null value.

Could you please tell me what I misses ?. Big Thanks.

Answer 1

The Access Token is not part of your request URL. You can read here about the OAuth2 protocol and how it works.

However, Google built an API that enables you to authenticate your requests without worrying about the underlying OAuth2 process. You should be using the Java Google Reports API to access activities. Here you can find the Java Quickstart that will help you with the first set up of your Java Application.

Here the Java translation of what you are trying to do, using the Google Reports API:

Reports service = new Reports.Builder(HTTP_TRANSPORT, JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
                  .setApplicationName(APPLICATION_NAME)
                  .build();

String userKey = "all";
String applicationName = "meet";
String eventName = "call_ended";
Activities result = service.activities().list(userKey, applicationName)
                    .setEventName(eventName)
                    .setMaxResults(10)
                    .execute();

Edit:

Be sure to use the last version of the Java API package. You can find the Java API docs here: https://developers.google.com/resources/api-libraries/documentation/admin/reports_v1/java/latest/

If you are using Gradle be sure to have this line in the dependencies parameter.

dependencies {
   ...
   compile 'com.google.apis:google-api-services-admin-reports:reports_v1-rev89-1.25.0'
}

References

OAuth2

Google Reports API