(VBScript) Twitter - Application Only Authentication

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

This example is deprecated and no longer valid.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' 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"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Http")
set http = CreateObject("Chilkat.Http")

http.BasicAuth = 1
http.Login = consumerKey
http.Password = consumerSecret

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.HttpRequest")
set req = CreateObject("Chilkat.HttpRequest")
req.AddParam "grant_type","client_credentials"

' resp is a Chilkat.HttpResponse
Set resp = http.PostUrlEncoded("https://api.twitter.com/oauth2/token",req)
If (http.LastMethodSuccess <> 1) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("Response Status Code: " & resp.StatusCode)

If (resp.StatusCode <> 200) Then
    outFile.WriteLine("Expected a 200 response status code for success.")
    outFile.WriteLine(resp.BodyStr)
    WScript.Quit
End If

' We should get a JSON response like this:

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set json = CreateObject("Chilkat.JsonObject")
success = json.Load(resp.BodyStr)

outFile.WriteLine("Access token = " & json.StringOf("access_token"))


outFile.Close