java - Insufficient Permission when run youtube retriving comments

Question

This is my whole code. I want to give a video ID which from youtube to get the comments related to this vedio ID.　But always show that I have Insufficient Permission.

I have tried to address this, and found youtube .commentThreads().list("snippet").setVideoId("tLTm_POao1c") .setTextFormat("plainText").execute(); is the problem. Specifically, execute() in this line calls "Insufficient Permission". Why is this?

package com.google.api.services.samples.youtube.cmdline.youtube_cmdline_addsubscription_sample;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.List;
import com.google.api.client.util.Preconditions;//aiyamaya
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.java6.auth.oauth2.FileCredentialStore;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
//import com.google.api.services.youtube.YouTube;
import com.google.api.services.youtube.model.ResourceId;
import com.google.api.services.youtube.model.Subscription;
import com.google.api.services.youtube.model.SubscriptionSnippet;
import com.google.common.collect.Lists;
import com.google.api.services.youtube.model.CommentThreadListResponse;
import com.google.api.services.youtube.model.CommentThread;
import com.google.api.services.youtube.model.CommentSnippet;
import com.google.api.services.youtube.YouTube;
import com.google.api.services.samples.youtube.cmdline.youtube_cmdline_addsubscription_sample.Auth;

//import com.google.api.services.samples.youtube.cmdline.Auth;
/**
 * Demo of subscribing user to a channel using the YouTube Data API (V3) with
 * OAuth2 for authorization.
 *
 * @author Ibrahim Ulukaya
 */
public class AddSubscription {

    /** Global instance of the HTTP transport. */
    // private static final HttpTransport HTTP_TRANSPORT = new
    // NetHttpTransport();

    /** Global instance of the JSON factory. */
    // private static final JsonFactory JSON_FACTORY = new JacksonFactory();

    /** Global instance of Youtube object to make all API requests. */
    private static YouTube youtube;

    public static void main(String[] args) {
        System.setProperty("proxySet", "true");
        System.setProperty("proxyHost", "bproxy.rmit.edu.au");
        System.setProperty("proxyPort", "8080");

        List<String> scopes = Lists
                .newArrayList("https://www.googleapis.com/auth/youtube");

        try {

            // Authorization.
            Credential credential = Auth.authorize(scopes, "commentthreads");

            // This object is used to make YouTube Data API requests.
            youtube = new YouTube.Builder(Auth.HTTP_TRANSPORT,
                    Auth.JSON_FACTORY, credential).setApplicationName(
                    "youtube-cmdline-commentthreads-sample").build();
            // YouTube object used to make all API requests.

            CommentThreadListResponse videoCommentsListResponse = youtube
                    .commentThreads().list("snippet").setVideoId("tLTm_POao1c")
                    .setTextFormat("plainText").execute();
            List<CommentThread> videoComments = videoCommentsListResponse
                    .getItems();

        } catch (GoogleJsonResponseException e) {
            System.err.println("GoogleJsonResponseException code: "
                    + e.getDetails().getCode() + " : "
                    + e.getDetails().getMessage());
            e.printStackTrace();

        } catch (IOException e) {
            System.err.println("IOException: " + e.getMessage());
            e.printStackTrace();
        } catch (Throwable t) {
            System.err.println("Throwable: " + t.getMessage());
            t.printStackTrace();
        }
    }

    /*
     * Returns a channel id (String) from user via the terminal.
     */

}

This is the error information:

    May 22, 2015 8:19:15 AM com.google.api.client.util.store.FileDataStoreFactory setPermissionsToOwnerOnly
WARNING: unable to change permissions for everybody: C:UsersE18300.oauth-credentials
May 22, 2015 8:19:15 AM com.google.api.client.util.store.FileDataStoreFactory setPermissionsToOwnerOnly
WARNING: unable to change permissions for owner: C:UsersE18300.oauth-credentials
2015-05-22 08:19:15.192:INFO::Logging to STDERR via org.mortbay.log.StdErrLog
2015-05-22 08:19:15.193:INFO::jetty-6.1.26
2015-05-22 08:19:15.212:INFO::Started SocketConnector@localhost:8080
2015-05-22 08:19:20.433:INFO::Stopped SocketConnector@localhost:8080
GoogleJsonResponseException code: 403 : Insufficient Permission
com.google.api.client.googleapis.json.GoogleJsonResponseException: 403 Forbidden
{
  "code" : 403,
  "errors" : [ {
    "domain" : "global",
    "message" : "Insufficient Permission",
    "reason" : "insufficientPermissions"
  } ],
  "message" : "Insufficient Permission"
}
    at com.google.api.client.googleapis.json.GoogleJsonResponseException.from(GoogleJsonResponseException.java:145)
    at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:113)
    at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:40)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest$1.interceptResponse(AbstractGoogleClientRequest.java:321)
    at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1045)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)
    at com.google.api.services.samples.youtube.cmdline.youtube_cmdline_addsubscription_sample.AddSubscription.main(AddSubscription.java:86)

Answer 1

The documentation lacks in this part, but you need to use the scope https://www.googleapis.com/auth/youtube.force-ssl to retrieve comments from the YouTube API. Took me way too much time to solve this issue.