Java Google Drive: Create a New Comment on a File

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Creates a new comment on a file. The file is specified by file ID. This example creates a comment on the file having id = "0B5drHSd5ZHwgc3RhcnRlcl9maWxlX2Rhc2hlclYw".

Documentation: https://developers.google.com/drive/v3/reference/comments/create

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkRest rest = new CkRest();
    boolean success;

    //   Provide a previously obtained OAuth2 access token.
    CkOAuth2 oauth2 = new CkOAuth2();
    oauth2.put_AccessToken("OAUTH2_ACCESS_TOKEN");
    rest.SetAuthOAuth2(oauth2);

    success = rest.Connect("www.googleapis.com",443,true,true);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    rest.AddQueryParam("fields","author,content");

    //  The following code creates the JSON request body.
    //  The JSON created by this code is shown below.
    CkJsonObject jsonReq = new CkJsonObject();
    jsonReq.UpdateString("content","This is a test comment about this file...");

    CkStringBuilder sbReq = new CkStringBuilder();
    jsonReq.EmitSb(sbReq);

    rest.AddHeader("Content-Type","application/json");

    CkStringBuilder sbJson = new CkStringBuilder();
    success = rest.FullRequestSb("POST","/drive/v3/files/0B5drHSd5ZHwgc3RhcnRlcl9maWxlX2Rhc2hlclYw/comments",sbReq,sbJson);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    if (rest.get_ResponseStatusCode() != 200) {
        System.out.println("Received error response code: " + rest.get_ResponseStatusCode());
        System.out.println("Response body:");
        System.out.println(sbJson.getAsString());
        return;
        }

    CkJsonObject json = new CkJsonObject();
    json.LoadSb(sbJson);

    //  The following code parses the JSON response.
    //  A sample JSON response is shown below the sample code.
    String authorKind;
    String authorDisplayName;
    String authorPhotoLink;
    boolean authorMe;
    String content;

    authorKind = json.stringOf("author.kind");
    authorDisplayName = json.stringOf("author.displayName");
    authorPhotoLink = json.stringOf("author.photoLink");
    authorMe = json.BoolOf("author.me");
    content = json.stringOf("content");

    System.out.println("Example Completed.");
  }
}

Sample JSON Request Body

{
  "content": "This is a test comment about this file..."
}

Sample JSON Response Body

{
  "author": {
    "kind": "drive#user",
    "displayName": "Matt Fausey",
    "photoLink": "//ssl.gstatic.com/s2/profiles/images/silhouette96.png",
    "me": true
  },
  "content": "This is a test comment about this file..."
}