C++ Requires Chilkat v11.0.0+

Upload Media to Twitter

Demonstrates uploading image or video files to Twitter. After uploading, the media_id can be used to attach the uploaded media to a tweet.

This example is deprecated and no longer valid.

C++

#include <CkJsonObject.h>
#include <CkHttp.h>
#include <CkHttpRequest.h>
#include <CkFileAccess.h>
#include <CkByteData.h>
#include <CkHttpResponse.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  It requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    //  Assume we've previously obtained an access token and saved it to a JSON file..
    CkJsonObject jsonToken;
    success = jsonToken.LoadFile("qa_data/tokens/twitter.json");

    CkHttp http;

    //  Provide the OAuth 1.0a credentials:
    http.put_OAuth1(true);
    http.put_OAuthConsumerKey("TWITTER_CONSUMER_KEY");
    http.put_OAuthConsumerSecret("TWITTER_CONSUMER_SECRET");
    http.put_OAuthToken(jsonToken.stringOf("oauth_token"));
    http.put_OAuthTokenSecret(jsonToken.stringOf("oauth_token_secret"));

    CkHttpRequest req;
    req.put_HttpVerb("POST");
    req.put_ContentType("multipart/form-data");
    req.put_Path("/1.1/media/upload.json");

    req.AddHeader("Expect","100-continue");

    //  Add a JPEG image file to the upload.
    CkFileAccess fac;
    CkByteData jpgBytes;
    success = fac.ReadEntireFile("qa_data/jpg/starfish.jpg",jpgBytes);
    req.AddBytesForUpload("media","starfish.jpg",jpgBytes);

    CkHttpResponse resp;
    success = http.HttpSReq("upload.twitter.com",443,true,req,resp);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    CkJsonObject jsonResponse;
    jsonResponse.put_EmitCompact(false);
    jsonResponse.Load(resp.bodyStr());

    if (resp.get_StatusCode() != 200) {
        std::cout << jsonResponse.emit() << "\r\n";
        return;
    }

    //  Show the successful response:
    std::cout << jsonResponse.emit() << "\r\n";
    std::cout << "Success." << "\r\n";

    //  A successful JSON response looks like this:

    //  	{
    //  	  "media_id": 793137045996646400,
    //  	  "media_id_string": "793137045996646400",
    //  	  "size": 6229,
    //  	  "expires_after_secs": 86400,
    //  	  "image": {
    //  	    "image_type": "image\/jpeg",
    //  	    "w": 120,
    //  	    "h": 120
    //  	  }
    //  	}
    //  

    //  Get the information from the JSON:
    std::cout << "media_id_string = " << jsonResponse.stringOf("media_id_string") << "\r\n";
    std::cout << "size = " << jsonResponse.IntOf("size") << "\r\n";
    std::cout << "image_type = " << jsonResponse.stringOf("image.image_type") << "\r\n";
    std::cout << "height/width = " << jsonResponse.IntOf("image.w") << "," << jsonResponse.IntOf("image.h") << "\r\n";
    }