(AutoIt) Refresh eBay Application Access Token

This example shows how to get a new eBay REST API access token when the original is close to expiration.

Note: This example requires Chilkat v9.5.0.80 or greater. (This example was written on 21-August-2019, before v9.5.0.80 was released. If Contact Chilkat for a pre-release if the current Chilkat version is not yet at 9.5.0.80 or greater.)

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

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

; The previously fetched eBay access token looks like this:

; {
;   "access_token": "v^1.1#i^1# ... HwSAAA=",
;   "expires_in": 7200,
;   "refresh_token": "v^1.1#i^1# ... FXjEyODQ=",
;   "refresh_token_expires_in": 47304000,
;   "token_type": "User Access Token"
; }

$oJson = ObjCreate("Chilkat.JsonObject")
Local $bSuccess = $oJson.LoadFile("qa_data/tokens/ebay-access-token.json")
If ($bSuccess = False) Then
    ConsoleWrite("Failed to load the existing ebay access token JSON." & @CRLF)
    Exit
EndIf

$oOauth2 = ObjCreate("Chilkat.OAuth2")

$oOauth2.TokenEndpoint = "https://api.sandbox.ebay.com/identity/v1/oauth2/token"

; Replace these with actual values.
$oOauth2.ClientId = "EBAY_CLIENT_ID"
$oOauth2.ClientSecret = "EBAY_CLIENT_SECRET"

; Get the "refresh_token"
$oOauth2.RefreshToken = $oJson.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 
$oJson.Load($oOauth2.AccessTokenResponse)

; 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.
$oJson.EmitCompact = False
$oJson.WriteFile("qa_data/tokens/ebay-access-token.json")

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