C++

ABN AMRO OAuth2 Client Credentials Authentication

See more ABN AMRO Examples

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

#include <CkCert.h>
#include <CkBinData.h>
#include <CkPrivateKey.h>
#include <CkHttp.h>
#include <CkHttpRequest.h>
#include <CkHttpResponse.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    bool success = false;

    // 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'

    CkCert cert;
    success = cert.LoadFromFile("qa_data/certs/TPPCertificate.cer");
    if (success == false) {
        std::cout << cert.lastErrorText() << "\r\n";
        return;
    }

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

    CkPrivateKey privKey;
    success = privKey.LoadAnyFormat(bdKey,"passwordIfNeeded");
    if (success == false) {
        std::cout << privKey.lastErrorText() << "\r\n";
        return;
    }

    success = cert.SetPrivateKey(privKey);
    if (success == false) {
        std::cout << cert.lastErrorText() << "\r\n";
        return;
    }

    CkHttp http;

    success = http.SetSslClientCert(cert);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    CkHttpRequest req;
    req.AddParam("grant_type","client_credentials");
    req.AddParam("client_id","TPP_test");
    req.AddParam("scope","psd2:payment:sepa:write psd2:payment:sepa:read");

    req.put_HttpVerb("POST");
    req.put_ContentType("application/x-www-form-urlencoded");

    CkHttpResponse resp;
    success = http.HttpReq("https://auth-sandbox.connect.abnamro.com:8443/as/token.oauth2",req,resp);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    if (resp.get_StatusCode() != 200) {
        std::cout << resp.bodyStr() << "\r\n";
        return;
    }

    // Get the JSON result:
    // {"access_token":"TIhycwl8rfrZPkXGw15mwldASAAK","token_type":"Bearer","expires_in":7200}
    CkJsonObject json;
    json.Load(resp.bodyStr());
    std::cout << "access_token: " << json.stringOf("access_token") << "\r\n";
    std::cout << "token_type: " << json.stringOf("token_type") << "\r\n";
    std::cout << "expires_in: " << json.stringOf("expires_in") << "\r\n";
    }