(AutoIt) X.com OAuth 2.0 Refresh Access Token

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Note: This example requires Chilkat v10.1.2 or greater.

For more information, see https://docs.x.com/resources/fundamentals/authentication/oauth-2-0/authorization-code

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; This example requires the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

$oJsonToken = ObjCreate("Chilkat.JsonObject")
Local $bSuccess = $oJsonToken.LoadFile("qa_data/tokens/x.json")
If ($bSuccess <> True) Then
    ConsoleWrite("Failed to load x.json" & @CRLF)
    Exit
EndIf

; The access token JSON looks something like this:

; {
;   "token_type": "bearer",
;   "expires_in": 7200,
;   "access_token": "VmNDLVZiYUZwejY5Mkx3RblFTmo3ek1leTRGclMuZFVOUTVUTWpNbVZKb1N5OjE3NDAxNjk4MDVxNTE6MToxOaF0OjE",
;   "scope": "block.read follows.read offline.access tweet.write block.write like.write like.read users.read tweet.read follows.write",
;   "refresh_token": "eThOWVVFSTRqdVp3QTFndGsxM2ZGZmFyNWVrU0phM1JKbGdrbGNWRGJzb1loOjE3NDAwMjk4MDUxNTI6MTowOnJ0OjE"
; }

$oOauth2 = ObjCreate("Chilkat.OAuth2")

$oOauth2.TokenEndpoint = "https://api.x.com/2/oauth2/token"

; Replace this with your actual X.com OAuth2 Client ID and Client Secret
$oOauth2.ClientId = "OAUTH2_CLIENT_ID"
$oOauth2.ClientSecret = "OAUTH2_CLIENT_SECRET"

; Get the "refresh_token"
$oOauth2.RefreshToken = $oJsonToken.StringOf("refresh_token")

; Send the HTTP POST to refresh the access token..
$bSuccess = $oOauth2.RefreshAccessToken()
If ($bSuccess <> True) Then
    ConsoleWrite($oOauth2.LastErrorText & @CRLF)
    Exit
EndIf

; Load the access token response into the json object 
$oJsonToken.Load($oOauth2.AccessTokenResponse)

; If an "expires_on" member does not exist, then add the JSON member by
; getting the current system date/time and adding the "expires_in" seconds.
; This way we'll know when the token expires.
If ($oJsonToken.HasMember("expires_on") = False) Then
    $oDtExpire = ObjCreate("Chilkat.CkDateTime")
    $oDtExpire.SetFromCurrentSystemTime()
    $oDtExpire.AddSeconds($oJsonToken.IntOf("expires_in"))
    $oJsonToken.AppendString("expires_on",$oDtExpire.GetAsUnixTimeStr(False))
EndIf

; Save the new JSON access token response to a file.
; The access + refresh tokens contained in this JSON will be needed for the next refresh.
$oSbJson = ObjCreate("Chilkat.StringBuilder")
$oJsonToken.EmitCompact = False
$oJsonToken.EmitSb($oSbJson)
$oSbJson.WriteFile("qa_data/tokens/x.json","utf-8",False)

ConsoleWrite("OAuth2 authorization granted!" & @CRLF)
ConsoleWrite("New Access Token = " & $oOauth2.AccessToken & @CRLF)