(PowerShell) 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This example is deprecated and no longer valid.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 .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

# 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 = New-Object Chilkat.Http

$http.BasicAuth = $true
$http.Login = $consumerKey
$http.Password = $consumerSecret

$req = New-Object Chilkat.HttpRequest
$req.AddParam("grant_type","client_credentials")

$resp = $http.PostUrlEncoded("https://api.twitter.com/oauth2/token",$req)
if ($http.LastMethodSuccess -ne $true) {
    $($http.LastErrorText)
    exit
}

$("Response Status Code: " + $resp.StatusCode)

if ($resp.StatusCode -ne 200) {
    $("Expected a 200 response status code for success.")
    $($resp.BodyStr)
    exit
}

# We should get a JSON response like this:

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

$json = New-Object Chilkat.JsonObject
$json.Load($resp.BodyStr)

$("Access token = " + $json.StringOf("access_token"))