(Go) 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.

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    // 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..
    jsonToken := chilkat.NewJsonObject()
    success := jsonToken.LoadFile("qa_data/tokens/twitter.json")

    http := chilkat.NewHttp()

    // Provide the OAuth 1.0a credentials:
    http.SetOAuth1(true)
    http.SetOAuthConsumerKey("TWITTER_CONSUMER_KEY")
    http.SetOAuthConsumerSecret("TWITTER_CONSUMER_SECRET")
    http.SetOAuthToken(jsonToken.StringOf("oauth_token"))
    http.SetOAuthTokenSecret(jsonToken.StringOf("oauth_token_secret"))

    req := chilkat.NewHttpRequest()
    req.SetHttpVerb("POST")
    req.SetContentType("multipart/form-data")
    req.SetPath("/1.1/media/upload.json")

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

    // Add a JPEG image file to the upload.
    fac := chilkat.NewFileAccess()

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

    resp := http.SynchronousRequest("upload.twitter.com",443,true,req)
    if http.LastMethodSuccess() != true {
        fmt.Println(http.LastErrorText())
        jsonToken.DisposeJsonObject()
        http.DisposeHttp()
        req.DisposeHttpRequest()
        fac.DisposeFileAccess()
        return
    }

    jsonResponse := chilkat.NewJsonObject()
    jsonResponse.SetEmitCompact(false)
    jsonResponse.Load(resp.BodyStr())

    if resp.StatusCode() != 200 {
        fmt.Println(*jsonResponse.Emit())
        jsonToken.DisposeJsonObject()
        http.DisposeHttp()
        req.DisposeHttpRequest()
        fac.DisposeFileAccess()
        jsonResponse.DisposeJsonObject()
        return
    }

    resp.DisposeHttpResponse()

    // Show the successful response:
    fmt.Println(*jsonResponse.Emit())
    fmt.Println("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:
    fmt.Println("media_id_string = ", *jsonResponse.StringOf("media_id_string"))
    fmt.Println("size = ", *jsonResponse.IntOf("size"))
    fmt.Println("image_type = ", *jsonResponse.StringOf("image.image_type"))
    fmt.Println("height/width = ", *jsonResponse.IntOf("image.w"), ",", *jsonResponse.IntOf("image.h"))

    jsonToken.DisposeJsonObject()
    http.DisposeHttp()
    req.DisposeHttpRequest()
    fac.DisposeFileAccess()
    jsonResponse.DisposeJsonObject()