C# 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

Chilkat.Rest rest = new Chilkat.Rest();
bool success;

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

success = rest.Connect("www.googleapis.com",443,true,true);
if (success != true) {
    Debug.WriteLine(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.
Chilkat.JsonObject jsonReq = new Chilkat.JsonObject();
jsonReq.UpdateString("content","This is a test comment about this file...");

Chilkat.StringBuilder sbReq = new Chilkat.StringBuilder();
jsonReq.EmitSb(sbReq);

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

Chilkat.StringBuilder sbJson = new Chilkat.StringBuilder();
success = rest.FullRequestSb("POST","/drive/v3/files/0B5drHSd5ZHwgc3RhcnRlcl9maWxlX2Rhc2hlclYw/comments",sbReq,sbJson);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

if (rest.ResponseStatusCode != 200) {
    Debug.WriteLine("Received error response code: " + Convert.ToString(rest.ResponseStatusCode));
    Debug.WriteLine("Response body:");
    Debug.WriteLine(sbJson.GetAsString());
    return;
}

Chilkat.JsonObject json = new Chilkat.JsonObject();
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;
bool 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");

Debug.WriteLine("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..."
}