React Native

SNS Subscribe Email Address

See more Amazon SNS Examples

Subscribe an email address to an SNS topic.

See SNS Subscribe for more information.

React Native

import { AuthAws, Rest, 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.

  const rest = new Rest();

  // Connect to the Amazon AWS REST server.
  // such as https://sns.us-west-2.amazonaws.com/
  const bTls = true;
  const port = 443;
  const bAutoReconnect = true;
  await rest.connectAsync('sns.us-west-2.amazonaws.com', port, bTls, bAutoReconnect);

  // Provide AWS credentials for the REST call.
  const authAws = new AuthAws();
  authAws.accessKey = 'AWS_ACCESS_KEY';
  authAws.secretKey = 'AWS_SECRET_KEY';
  // the region should match our URL above..
  authAws.region = 'us-west-2';
  authAws.serviceName = 'sns';

  rest.setAuthAws(authAws);

  rest.addQueryParam('Action', 'Subscribe');
  rest.addQueryParam('Endpoint', 'somebody@some-email-address.com');
  rest.addQueryParam('Protocol', 'email');
  rest.addQueryParam('TopicArn', 'arn:aws:sns:us-west-2:957491831129:chilkat');

  let responseXml: string;
  try {
    responseXml = await rest.fullRequestNoBodyAsync('GET', '/');
  } catch {
    console.log(rest.lastErrorText);
    return;
  }

  // A successful response will have a status code equal to 200.
  if (rest.responseStatusCode !== 200) {
    console.log(`response status code = ${rest.responseStatusCode}`);
    console.log(`response status text = ${rest.responseStatusText}`);
    console.log(`response header: ${rest.responseHeader}`);
    console.log(`response body: ${responseXml}`);
    return;
  }

  // Examine the successful XML response.
  const xml = new Xml();
  xml.loadXml(responseXml);
  console.log(xml.getXml());

  // To get the SubscriptionArn (which in this case is "pending confirmation")
  console.log(`SubscriptionArn: ${xml.chilkatPath('SubscribeResult|SubscriptionArn|*')}`);

  // A sample successful response:
  // <?xml version="1.0" encoding="utf-8" ?>
  // <SubscribeResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
  //     <SubscribeResult>
  //         <SubscriptionArn>pending confirmation</SubscriptionArn>
  //     </SubscribeResult>
  //     <ResponseMetadata>
  //         <RequestId>c5490a81-973b-5fa6-93dc-5bed689c212f</RequestId>
  //     </ResponseMetadata>
  // </SubscribeResponse>
}