(AutoIt) Datev OAuth2 Access Token

See more Datev Examples

Note: This example requires Chilkat v10.1.3 or greater.

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

; To further clarify, see OAuth 2.0 Authorization Flow

$oOauth2 = ObjCreate("Chilkat.OAuth2")

; Your Datev app should use "http://localhost" (no trailing forward slash) for the redirect URL.
$oOauth2.ListenPort = 3017

; 

$oOauth2.AuthorizationEndpoint = "https://login.datev.de/openidsandbox/authorize"
$oOauth2.TokenEndpoint = "https://sandbox-api.datev.de/token"

; Replace this with your actual client ID.
$oOauth2.ClientId = "DATEV_CLIENT_ID"
$oOauth2.ClientSecret = "DATEV_CLIENT_SECRET"

$oOauth2.CodeChallenge = True
$oOauth2.CodeChallengeMethod = "S256"

$oOauth2.Scope = "openid profile email datev:accounting:clients accounting:documents datev:accounting:extf-files-import"

; 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

; 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 interactive user to grant permission in the interactive browser session.
; We'll wait for a max of 90 seconds.
Local $iNumMsWaited = 0
While ($iNumMsWaited < 90000) And ($oOauth2.AuthFlowState < 3)
    $oOauth2.SleepMs 100
    $iNumMsWaited = $iNumMsWaited + 100
Wend

; If there was no response from the browser within 90 seconds, then 
; the AuthFlowState will be equal to 1 or 2.
; 1: Waiting for Redirect. The OAuth2 background thread is waiting to receive the redirect HTTP request from the browser.
; 2: Waiting for Final Response. The OAuth2 background thread is waiting for the final access token response.
; In that case, cancel the background task started in the call to StartAuth.
If ($oOauth2.AuthFlowState < 3) Then
    $oOauth2.Cancel()
    ConsoleWrite("No response from the browser!" & @CRLF)
    Exit
EndIf

; Check the AuthFlowState to see if authorization was granted, denied, or if some error occurred
; The possible AuthFlowState values are:
; 3: Completed with Success. The OAuth2 flow has completed, the background thread exited, and the successful JSON response is available in AccessTokenResponse property.
; 4: Completed with Access Denied. The OAuth2 flow has completed, the background thread exited, and the error JSON is available in AccessTokenResponse property.
; 5: Failed Prior to Completion. The OAuth2 flow failed to complete, the background thread exited, and the error information is available in the FailureInfo property.
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

; Save the full JSON access token response to a file.
$oSbJson = ObjCreate("Chilkat.StringBuilder")
$oSbJson.Append($oOauth2.AccessTokenResponse)
$oSbJson.WriteFile("qa_data/tokens/datev.json","utf-8",False)

; The saved JSON response looks like this:

; {
; 	"refresh_token": "ZDA5Y .... FFhTXc9",
; 	"refresh_token_expires_in": 39600,
; 	"id_token": "eyJ .... Q9w",
; 	"access_token": "MTM .... 1UDA9",
; 	"token_type": "bearer",
; 	"expires_in": 900		
; }

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