(Classic ASP) 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.

Note: This example requires Chilkat v11.0.0 or greater.

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

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

' 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 = Server.CreateObject("Chilkat.Cert")
success = cert.LoadFromFile("qa_data/certs/TPPCertificate.cer")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"
    Response.End
End If

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

set privKey = Server.CreateObject("Chilkat.PrivateKey")
success = privKey.LoadAnyFormat(bdKey,"passwordIfNeeded")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( privKey.LastErrorText) & "</pre>"
    Response.End
End If

success = cert.SetPrivateKey(privKey)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"
    Response.End
End If

set http = Server.CreateObject("Chilkat.Http")

success = http.SetSslClientCert(cert)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

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

req.HttpVerb = "POST"
req.ContentType = "application/x-www-form-urlencoded"

set resp = Server.CreateObject("Chilkat.HttpResponse")
success = http.HttpReq("https://auth-sandbox.connect.abnamro.com:8443/as/token.oauth2",req,resp)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

If (resp.StatusCode <> 200) Then
    Response.Write "<pre>" & Server.HTMLEncode( resp.BodyStr) & "</pre>"
    Response.End
End If

' Get the JSON result:
' {"access_token":"TIhycwl8rfrZPkXGw15mwldASAAK","token_type":"Bearer","expires_in":7200}
set json = Server.CreateObject("Chilkat.JsonObject")
success = json.Load(resp.BodyStr)
Response.Write "<pre>" & Server.HTMLEncode( "access_token: " & json.StringOf("access_token")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "token_type: " & json.StringOf("token_type")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "expires_in: " & json.StringOf("expires_in")) & "</pre>"

%>
</body>
</html>