(Go) Twitter - Application Only Authentication

Demonstrates how to get a Twitter OAuth2 token for application-only authentication.

This example is deprecated and no longer valid.

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

    // Note: Define your Twitter apps at https://apps.twitter.com/

    // We're going to send an HTTPS POST that looks like this:

    // POST /oauth2/token HTTP/1.1
    // Host: api.twitter.com
    // User-Agent: My Twitter App v1.0.23
    // Authorization: Basic eHZ6MWV2RlM0d0VFUFRHRUZQSEJvZzpMOHFxOVBaeVJn
    //                      NmllS0dFS2hab2xHQzB2SldMdzhpRUo4OERSZHlPZw==
    // Content-Type: application/x-www-form-urlencoded;charset=UTF-8
    // Content-Length: 29
    // Accept-Encoding: gzip
    // 
    // grant_type=client_credentials

    // Update these values with your consumer key and secret (also known as API key and API secret).
    consumerKey := "TWITTER_CONSUMER_KEY"
    consumerSecret := "TWITTER_CONSUMER_SECRET"

    http := chilkat.NewHttp()

    http.SetBasicAuth(true)
    http.SetLogin(consumerKey)
    http.SetPassword(consumerSecret)

    req := chilkat.NewHttpRequest()
    req.AddParam("grant_type","client_credentials")

    resp := http.PostUrlEncoded("https://api.twitter.com/oauth2/token",req)
    if http.LastMethodSuccess() != true {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        req.DisposeHttpRequest()
        return
    }

    fmt.Println("Response Status Code: ", resp.StatusCode())

    if resp.StatusCode() != 200 {
        fmt.Println("Expected a 200 response status code for success.")
        fmt.Println(resp.BodyStr())
        http.DisposeHttp()
        req.DisposeHttpRequest()
        return
    }

    // We should get a JSON response like this:

    // {
    //     "token_type":"bearer",
    //     "access_token":"..."
    // }

    json := chilkat.NewJsonObject()
    json.Load(resp.BodyStr())

    fmt.Println("Access token = ", *json.StringOf("access_token"))

    resp.DisposeHttpResponse()

    http.DisposeHttp()
    req.DisposeHttpRequest()
    json.DisposeJsonObject()