React Native

Azure REST API Access Token

See more Azure OAuth2 Examples

Demonstrates how to request an Azure REST API OAUTH2 access token.

Note: In order to access resources a Service Principal needs to be created in your Tenant. It is really convenient to do it via AZ CLI:

az ad sp create-for-rbac --name [APP_NAME] --password [CLIENT_SECRET]

React Native

import { JsonObject, Rest } 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.

  const rest = new Rest();

  // URL: https://login.microsoftonline.com/TENANT_ID/oauth2/token
  const bTls = true;
  const port = 443;
  const bAutoReconnect = true;
  try {
    await rest.connectAsync('login.microsoftonline.com', port, bTls, bAutoReconnect);
  } catch {
    console.log(`ConnectFailReason: ${rest.connectFailReason}`);
    console.log(rest.lastErrorText);
    return;
  }

  // Add query params to the request.
  rest.addQueryParam('grant_type', 'client_credentials');
  rest.addQueryParam('client_id', 'APP_ID');
  rest.addQueryParam('client_secret', 'CLIENT_SECRET');
  // Note: The resource must match the API for which you're using the access token..
  rest.addQueryParam('resource', 'https://management.azure.com/');

  let strResponseBody: string;
  try {
    strResponseBody = await rest.fullRequestFormUrlEncodedAsync('POST', '/TENANT_ID/oauth2/token');
  } catch {
    console.log(rest.lastErrorText);
    return;
  }

  const respStatusCode = rest.responseStatusCode;
  if (respStatusCode >= 400) {
    console.log(`Response Status Code = ${respStatusCode}`);
    console.log('Response Header:');
    console.log(rest.responseHeader);
    console.log('Response Body:');
    console.log(strResponseBody);
    return;
  }

  const json = new JsonObject();
  json.load(strResponseBody);
  json.emitCompact = false;
  console.log(json.emit());

  // The result is an access token such as the following:

  // {
  //   "token_type": "Bearer",
  //   "expires_in": "3600",
  //   "ext_expires_in": "3600",
  //   "expires_on": "1557864616",
  //   "not_before": "1557860716",
  //   "resource": "https://management.azure.com/",
  //   "access_token": "eyJ0eXAiOiJKV1QiL ... 20UFDDOHEyUg"
  // }

  // We'll save this JSON to a file for other examples to use..
  json.writeFile('qa_data/tokens/azureToken.json');
}