(PHP Extension) 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

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<?php

include("chilkat.php");

$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'

$cert = new CkCert();
$success = $cert->LoadFromFile('qa_data/certs/TPPCertificate.cer');
if ($success == false) {
    print $cert->lastErrorText() . "\n";
    exit;
}

$bdKey = new CkBinData();
$success = $bdKey->LoadFile('qa_data/certs/TPPprivateKey.key');

$privKey = new CkPrivateKey();
$success = $privKey->LoadAnyFormat($bdKey,'passwordIfNeeded');
if ($success == false) {
    print $privKey->lastErrorText() . "\n";
    exit;
}

$success = $cert->SetPrivateKey($privKey);
if ($success == false) {
    print $cert->lastErrorText() . "\n";
    exit;
}

$http = new CkHttp();

$success = $http->SetSslClientCert($cert);
if ($success == false) {
    print $http->lastErrorText() . "\n";
    exit;
}

$req = new CkHttpRequest();
$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');

$resp = new CkHttpResponse();
$success = $http->HttpReq('https://auth-sandbox.connect.abnamro.com:8443/as/token.oauth2',$req,$resp);
if ($success == false) {
    print $http->lastErrorText() . "\n";
    exit;
}

if ($resp->get_StatusCode() != 200) {
    print $resp->bodyStr() . "\n";
    exit;
}

// Get the JSON result:
// {"access_token":"TIhycwl8rfrZPkXGw15mwldASAAK","token_type":"Bearer","expires_in":7200}
$json = new CkJsonObject();
$json->Load($resp->bodyStr());
print 'access_token: ' . $json->stringOf('access_token') . "\n";
print 'token_type: ' . $json->stringOf('token_type') . "\n";
print 'expires_in: ' . $json->stringOf('expires_in') . "\n";

?>