React Native

S3 List Buckets using an STS Session Token

See more AWS Security Token Service Examples

This is an example showing how to use an STS session token in an Amazon AWS request. This example will list S3 buckets using a previously obtained session token. React Native

import { AuthAws, Rest, StringBuilder, Xml } 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.

  // See Get AWS STS Session Token for sample code to get the session token XML.
  const xmlToken = new Xml();
  try {
    xmlToken.loadXmlFile('qa_data/tokens/aws_session_token.xml');
  } catch {
    console.log(xmlToken.lastErrorText);
    return;
  }

  const rest = new Rest();

  // Connect to the Amazon AWS REST server.
  const bTls = true;
  const port = 443;
  const bAutoReconnect = true;
  await rest.connectAsync('s3.amazonaws.com', port, bTls, bAutoReconnect);

  // Provide AWS credentials for the REST call.
  const authAws = new AuthAws();

  // The purpose of this example is to show how to use the temporary AccessKeyId, SecretAccessKey, and SessionToken.
  authAws.accessKey = xmlToken.getChildContent('GetSessionTokenResult|Credentials|AccessKeyId');
  authAws.secretKey = xmlToken.getChildContent('GetSessionTokenResult|Credentials|SecretAccessKey');
  authAws.serviceName = 's3';
  rest.setAuthAws(authAws);

  rest.addQueryParam('X-Amz-Security-Token', xmlToken.getChildContent('GetSessionTokenResult|Credentials|SessionToken'));

  const sbResponse = new StringBuilder();
  try {
    await rest.fullRequestNoBodySbAsync('GET', '/', sbResponse);
  } catch {
    console.log(rest.lastErrorText);
    return;
  }

  const statusCode = rest.responseStatusCode;
  console.log(`Response status code = ${statusCode}`);

  const xml = new Xml();
  xml.loadSb(sbResponse, true);
  console.log(xml.getXml());

  if (statusCode !== 200) {
    console.log('Failed.  See error information in the XML.');
    return;
  }
}