(AutoIt) Rabobank OAuth2 Access Token

Demonstrates how to get an OAuth 2.0 access token to access Rabobank API's

Important: This example is for desktop apps only. (It is not for web-based applications.)

Your app defined in the Rabobank portal should look something like this. (Our test app is named "chilkat". You should name your app something else.)

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

For more information, see https://developer-sandbox.rabobank.nl/implementoauth2

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

; For more information about the OAuth2, see OAuth 2.0 Authorization Flow

$oOauth2 = ObjCreate("Chilkat.OAuth2")

; This should be the port in the localhost callback URL for your app.  
; The callback URL would look like "http://localhost:3017/" if the port number is 3017.
$oOauth2.ListenPort = 3017

; IMPORTANT: Don't forget to subscribe your Rabobank application to the OAuth 2.0 services in the Rabobank Online Developer Portal.
; IMPORTANT: Don't forget to subscribe your Rabobank application to the OAuth 2.0 services in the Rabobank Online Developer Portal.
; IMPORTANT: Don't forget to subscribe your Rabobank application to the OAuth 2.0 services in the Rabobank Online Developer Portal.
; IMPORTANT: Don't forget to subscribe your Rabobank application to the OAuth 2.0 services in the Rabobank Online Developer Portal.

; See also https://developer.rabobank.nl/faq

$oOauth2.AuthorizationEndpoint = "https://api-sandbox.rabobank.nl/openapi/sandbox/oauth2/authorize"
$oOauth2.TokenEndpoint = "https://api-sandbox.rabobank.nl/openapi/sandbox/oauth2/token"

; Replace these with actual values.
$oOauth2.ClientId = "YOUR_APP_CLIENT_ID"
; This is your app password:
$oOauth2.ClientSecret = "YOUR_APP_CLIENT_SECRET"

$oOauth2.CodeChallenge = False
; Provide a SPACE separated list of scopes, as defined in the Rabobank API documentation, 
; such as at https://developer-sandbox.rabobank.nl/reference/accounts-ais-sb/3-0-8

; Important: To get a refresh token in the final response, you have to ask for "offline_access" scope
$oOauth2.Scope = "ais.balances.read ais.transactions.read-90days ais.transactions.read-history"

; Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
Local $sUrl = $oOauth2.StartAuth()
If ($oOauth2.LastMethodSuccess <> True) Then
    ConsoleWrite($oOauth2.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("url = " & $sUrl & @CRLF)

; Launch the default browser on the system and navigate to the url.
; The LaunchBrowser method was added in Chilkat v10.1.2.
Local $bSuccess = $oOauth2.LaunchBrowser($sUrl)
If ($bSuccess = False) Then
    ConsoleWrite($oOauth2.LastErrorText & @CRLF)
    Exit
EndIf

; Wait for the user to approve or deny authorization in the browser.
Local $iNumMsWaited = 0
While ($iNumMsWaited < 90000) And ($oOauth2.AuthFlowState < 3)
    $oOauth2.SleepMs 100
    $iNumMsWaited = $iNumMsWaited + 100
Wend

; If the browser does not respond within the specified time, AuthFlowState will be:
; 
; 1: Waiting for Redirect - The OAuth2 background thread is waiting for the browser's redirect request.
; 2: Waiting for Final Response - The thread is awaiting the final access token response.
; In either case, cancel the background task initiated by StartAuth.

If ($oOauth2.AuthFlowState < 3) Then
    $oOauth2.Cancel()
    ConsoleWrite("No response from the browser!" & @CRLF)
    Exit
EndIf

; Check AuthFlowState to determine if authorization was granted, denied, or failed:
; 
; 3: Success - OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
; 4: Access Denied - OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
; 5: Failure - OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

If ($oOauth2.AuthFlowState = 5) Then
    ConsoleWrite("OAuth2 failed to complete." & @CRLF)
    ConsoleWrite($oOauth2.FailureInfo & @CRLF)
    Exit
EndIf

If ($oOauth2.AuthFlowState = 4) Then
    ConsoleWrite("OAuth2 authorization was denied." & @CRLF)
    ConsoleWrite($oOauth2.AccessTokenResponse & @CRLF)
    Exit
EndIf

If ($oOauth2.AuthFlowState <> 3) Then
    ConsoleWrite("Unexpected AuthFlowState:" & $oOauth2.AuthFlowState & @CRLF)
    Exit
EndIf

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

; Get the full JSON response:
$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.Load($oOauth2.AccessTokenResponse)
$oJson.EmitCompact = False

; The JSON response looks like this:

; {
;   "token_type": "Bearer",
;   "access_token": "AAIkYTU0ZWM ... sxE0KL0HHWw",
;   "expires_in": 3600,
;   "consented_on": 1584641121,
;   "scope": "ais.balances.read ais.transactions.read-90days ais.transactions.read-history",
;   "refresh_token": "AAJXXSdN ... Uiblz9ILkxNBlytRGA",
;   "refresh_token_expires_in": 157784760,
;   "expires_on": "1584644722"
; }

ConsoleWrite($oJson.Emit() & @CRLF)

; Save the JSON to a file to be used in future requests.
$oFac = ObjCreate("Chilkat.FileAccess")
$oFac.WriteEntireTextFile("qa_data/tokens/rabobank.json",$oJson.Emit(),"utf-8",False)