(VBScript) ABN AMRO OAuth2 Client Credentials Authentication

Demonstrates how to obtain an access token for an ABN AMRO online API using OAuth2 with the Client Credentials flow.

For more information, see https://developer.abnamro.com/api/payment-initiation-v1/payment-initiation-tutorial

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

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
Set outFile = fso.CreateTextFile("output.txt", True)

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

' This example sends the following CURL request:

' 	curl -X POST -k https://auth-sandbox.connect.abnamro.com:8443/as/token.oauth2 \
' 	-v \
' 	--cert TPPCertificate.crt \
' 	--key TPPprivateKey.key \
' 	-H 'Cache-Control: no-cache' \
' 	-H 'Content-Type: application/x-www-form-urlencoded' \
' 	-d 'grant_type=client_credentials&client_id=TPP_test&scope=psd2:payment:sepa:write psd2:payment:sepa:read'

set cert = CreateObject("Chilkat_9_5_0.Cert")
success = cert.LoadFromFile("qa_data/certs/TPPCertificate.cer")
If (success <> 1) Then
    outFile.WriteLine(cert.LastErrorText)
    WScript.Quit
End If

set bdKey = CreateObject("Chilkat_9_5_0.BinData")
success = bdKey.LoadFile("qa_data/certs/TPPprivateKey.key")

set privKey = CreateObject("Chilkat_9_5_0.PrivateKey")
success = privKey.LoadAnyFormat(bdKey,"passwordIfNeeded")
If (success <> 1) Then
    outFile.WriteLine(privKey.LastErrorText)
    WScript.Quit
End If

success = cert.SetPrivateKey(privKey)
If (success <> 1) Then
    outFile.WriteLine(cert.LastErrorText)
    WScript.Quit
End If

set http = CreateObject("Chilkat_9_5_0.Http")

success = http.SetSslClientCert(cert)
If (success <> 1) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

set req = CreateObject("Chilkat_9_5_0.HttpRequest")
req.AddParam "grant_type","client_credentials"
req.AddParam "client_id","TPP_test"
req.AddParam "scope","psd2:payment:sepa:write psd2:payment:sepa:read"

' resp is a Chilkat_9_5_0.HttpResponse
Set resp = http.PostUrlEncoded("https://auth-sandbox.connect.abnamro.com:8443/as/token.oauth2",req)
If (http.LastMethodSuccess = 0) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

If (resp.StatusCode <> 200) Then
    outFile.WriteLine(resp.BodyStr)

    WScript.Quit
End If

' Get the JSON result:
' {"access_token":"TIhycwl8rfrZPkXGw15mwldASAAK","token_type":"Bearer","expires_in":7200}
set json = CreateObject("Chilkat_9_5_0.JsonObject")
success = json.Load(resp.BodyStr)
outFile.WriteLine("access_token: " & json.StringOf("access_token"))
outFile.WriteLine("token_type: " & json.StringOf("token_type"))
outFile.WriteLine("expires_in: " & json.StringOf("expires_in"))


outFile.Close