(Node.js) 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.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // 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..
    var jsonToken = new chilkat.JsonObject();
    var success = jsonToken.LoadFile("qa_data/tokens/twitter.json");

    var http = new chilkat.Http();

    // Provide the OAuth 1.0a credentials:
    http.OAuth1 = true;
    http.OAuthConsumerKey = "TWITTER_CONSUMER_KEY";
    http.OAuthConsumerSecret = "TWITTER_CONSUMER_SECRET";
    http.OAuthToken = jsonToken.StringOf("oauth_token");
    http.OAuthTokenSecret = jsonToken.StringOf("oauth_token_secret");

    var req = new chilkat.HttpRequest();
    req.HttpVerb = "POST";
    req.ContentType = "multipart/form-data";
    req.Path = "/1.1/media/upload.json";

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

    // Add a JPEG image file to the upload.
    var fac = new chilkat.FileAccess();

    jpgBytes = fac.ReadEntireFile("qa_data/jpg/starfish.jpg");
    req.AddBytesForUpload("media","starfish.jpg",jpgBytes);

    // resp: HttpResponse
    var resp = http.SynchronousRequest("upload.twitter.com",443,true,req);
    if (http.LastMethodSuccess !== true) {
        console.log(http.LastErrorText);
        return;
    }

    var jsonResponse = new chilkat.JsonObject();
    jsonResponse.EmitCompact = false;
    jsonResponse.Load(resp.BodyStr);

    if (resp.StatusCode !== 200) {
        console.log(jsonResponse.Emit());
        return;
    }

    // Show the successful response:
    console.log(jsonResponse.Emit());
    console.log("Success.");

    // 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:
    console.log("media_id_string = " + jsonResponse.StringOf("media_id_string"));
    console.log("size = " + jsonResponse.IntOf("size"));
    console.log("image_type = " + jsonResponse.StringOf("image.image_type"));
    console.log("height/width = " + jsonResponse.IntOf("image.w") + "," + jsonResponse.IntOf("image.h"));

}

chilkatExample();