React Native

S3 Add Tags to an Object

See more Amazon S3 (new) Examples

Demonstrates how to add one or more tags to an S3 object. 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.

  const rest = new Rest();

  // Connect to the Amazon AWS REST server in the desired region.
  // (for us-east-1, we use "s3.amazonaws.com", but for another region, such as us-west-2, we would use "s3-us-west-2.amazonaws.com")
  const bTls = true;
  const port = 443;
  const bAutoReconnect = true;
  await rest.connectAsync('s3.amazonaws.com', port, bTls, bAutoReconnect);

  // Provide AWS credentials.
  const authAws = new AuthAws();
  authAws.accessKey = 'AWS_ACCESS_KEY';
  authAws.secretKey = 'AWS_SECRET_KEY';
  authAws.serviceName = 's3';
  authAws.region = 'us-east-1';

  rest.setAuthAws(authAws);

  // Set the bucket name via the HOST header.
  // In this case, the bucket name is "chilkat100".
  // Note that the Host header should use "bucketName.s3.amazonaws.com", not "bucketName.s3-us-east-1.amazonaws.com"
  // The same applies to aother regions.  The Host header should simply be <bucketName>.s3.amazonaws.com regardless of the region.
  rest.host = 'chilkat100.s3.amazonaws.com';

  const xml = new Xml();
  xml.tag = 'Tagging';
  xml.updateChildContent('TagSet|Tag|Key', 'plant');
  xml.updateChildContent('TagSet|Tag|Value', 'chili pepper');

  const sbRequestBody = new StringBuilder();
  xml.getXmlSb(sbRequestBody);

  // It is important to add the terminating "=" after the "?tagging".
  const sbResponse = new StringBuilder();
  try {
    await rest.fullRequestSbAsync('PUT', '/chiliPepper.gif?tagging=', sbRequestBody, sbResponse);
  } catch {
    console.log(rest.lastErrorText);
    return;
  }

  console.log(`Response status code: ${rest.responseStatusCode}`);

  // When successful, the S3 Storage service will respond with a 200 response code,
  // with an XML body.  
  if (rest.responseStatusCode !== 200) {
    // Examine the request/response to see what happened.
    console.log(`response status code = ${rest.responseStatusCode}`);
    console.log(`response status text = ${rest.responseStatusText}`);
    console.log(`response header: ${rest.responseHeader}`);
    console.log(`response body: ${sbResponse.getAsString()}`);
    console.log('---');
    console.log(`LastRequestStartLine: ${rest.lastRequestStartLine}`);
    console.log(`LastRequestHeader: ${rest.lastRequestHeader}`);
  }

  console.log(sbResponse.getAsString());
  console.log('Success.');
}