(AutoIt) Refresh QuickBooks OAuth2 Access Token

Demonstrates how to refresh a QuickBooks OAuth2 access token.

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

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

; See Get QuickBooks OAuth2 Access Token 
; for sample code showing how to obtain a QuickBooks access token for desktop apps.

; This example assumes we previously obtained an OAuth2 access token for QuickBooks.

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

; The access token JSON looks something like this:

; {
;   "expires_in": 3600,
;   "x_refresh_token_expires_in": 8726400,
;   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
;   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
;   "token_type": "bearer"
; }

$oOauth2 = ObjCreate("Chilkat.OAuth2")

$oOauth2.TokenEndpoint = "https://oauth.platform.intuit.com/oauth2/v1/tokens/bearer"

; Replace these with actual values.
$oOauth2.ClientId = "QUICKBOOKS-CLIENT-ID"
$oOauth2.ClientSecret = "QUICKBOOKS-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

; The response contains a new access token, but we must keep
; our existing refresh token for when we need to refresh again in the future.
$oJsonToken.UpdateString("access_token",$oOauth2.AccessToken)

; 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/qb-access-token.json","utf-8",False)

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