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

#include <CkRest.h>
#include <CkOAuth2.h>
#include <CkJsonObject.h>
#include <CkStringBuilder.h>

void ChilkatSample(void)
    {
    CkRest rest;
    bool success;

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

    success = rest.Connect("www.googleapis.com",443,true,true);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        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;
    jsonReq.UpdateString("content","This is a test comment about this file...");

    CkStringBuilder sbReq;
    jsonReq.EmitSb(sbReq);

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

    CkStringBuilder sbJson;
    success = rest.FullRequestSb("POST","/drive/v3/files/0B5drHSd5ZHwgc3RhcnRlcl9maWxlX2Rhc2hlclYw/comments",sbReq,sbJson);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    if (rest.get_ResponseStatusCode() != 200) {
        std::cout << "Received error response code: " << rest.get_ResponseStatusCode() << "\r\n";
        std::cout << "Response body:" << "\r\n";
        std::cout << sbJson.getAsString() << "\r\n";
        return;
    }

    CkJsonObject json;
    json.LoadSb(sbJson);

    //  The following code parses the JSON response.
    //  A sample JSON response is shown below the sample code.
    const char *authorKind = 0;
    const char *authorDisplayName = 0;
    const char *authorPhotoLink = 0;
    bool authorMe;
    const char *content = 0;

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

    std::cout << "Example Completed." << "\r\n";
    }

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..."
}