React Native

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. React Native

import { BinData, Cert, Http, HttpRequest, HttpResponse, JsonObject, PrivateKey } from '@chilkat/react-native'

async function chilkatExample() {
  // 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'

  const cert = new Cert();
  try {
    cert.loadFromFile('qa_data/certs/TPPCertificate.cer');
  } catch {
    console.log(cert.lastErrorText);
    return;
  }

  const bdKey = new BinData();
  bdKey.loadFile('qa_data/certs/TPPprivateKey.key');

  const privKey = new PrivateKey();
  try {
    privKey.loadAnyFormat(bdKey, 'passwordIfNeeded');
  } catch {
    console.log(privKey.lastErrorText);
    return;
  }

  try {
    cert.setPrivateKey(privKey);
  } catch {
    console.log(cert.lastErrorText);
    return;
  }

  const http = new Http();

  try {
    http.setSslClientCert(cert);
  } catch {
    console.log(http.lastErrorText);
    return;
  }

  const req = new 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';

  const resp = new HttpResponse();
  try {
    await http.httpReqAsync('https://auth-sandbox.connect.abnamro.com:8443/as/token.oauth2', req, resp);
  } catch {
    console.log(http.lastErrorText);
    return;
  }

  if (resp.statusCode !== 200) {
    console.log(resp.bodyStr);
    return;
  }

  // Get the JSON result:
  // {"access_token":"TIhycwl8rfrZPkXGw15mwldASAAK","token_type":"Bearer","expires_in":7200}
  const json = new JsonObject();
  json.load(resp.bodyStr);
  console.log(`access_token: ${json.stringOf('access_token')}`);
  console.log(`token_type: ${json.stringOf('token_type')}`);
  console.log(`expires_in: ${json.stringOf('expires_in')}`);
}