(CkPython) 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 Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux, Solaris

import sys
import chilkat

# 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'

cert = chilkat.CkCert()
success = cert.LoadFromFile("qa_data/certs/TPPCertificate.cer")
if (success != True):
    print(cert.lastErrorText())
    sys.exit()

bdKey = chilkat.CkBinData()
success = bdKey.LoadFile("qa_data/certs/TPPprivateKey.key")

privKey = chilkat.CkPrivateKey()
success = privKey.LoadAnyFormat(bdKey,"passwordIfNeeded")
if (success != True):
    print(privKey.lastErrorText())
    sys.exit()

success = cert.SetPrivateKey(privKey)
if (success != True):
    print(cert.lastErrorText())
    sys.exit()

http = chilkat.CkHttp()

success = http.SetSslClientCert(cert)
if (success != True):
    print(http.lastErrorText())
    sys.exit()

req = chilkat.CkHttpRequest()
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 CkHttpResponse
resp = http.PostUrlEncoded("https://auth-sandbox.connect.abnamro.com:8443/as/token.oauth2",req)
if (http.get_LastMethodSuccess() == False):
    print(http.lastErrorText())
    sys.exit()

if (resp.get_StatusCode() != 200):
    print(resp.bodyStr())

    sys.exit()

# Get the JSON result:
# {"access_token":"TIhycwl8rfrZPkXGw15mwldASAAK","token_type":"Bearer","expires_in":7200}
json = chilkat.CkJsonObject()
json.Load(resp.bodyStr())
print("access_token: " + json.stringOf("access_token"))
print("token_type: " + json.stringOf("token_type"))
print("expires_in: " + json.stringOf("expires_in"))