Dart

S3 Find Bucket Region

See more Amazon S3 (new) Examples

Demonstrates how to find out the region of an S3 bucket. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final rest = CkRest();

  // Connect to the Amazon AWS REST server using the correct region (in this example, "us-west-2")
  final bTls = true;
  final port = 443;
  final bAutoReconnect = true;
  rest.connect('s3.amazonaws.com', port, bTls, bAutoReconnect);

  // Provide AWS credentials for the REST call.
  final authAws = CkAuthAws();
  authAws.accessKey = 'AWS_ACCESS_KEY';
  authAws.secretKey = 'AWS_SECRET_KEY';
  authAws.serviceName = 's3';
  rest.setAuthAws(authAws);

  // The bucket name we want to know about is set in the HOST header.
  // In this example, we want to find the region for the "chilkat.qa" bucket.
  rest.host = 'chilkat.qa.s3.amazonaws.com';

  // Send the GET request to query the bucket location.
  final String strResult;
  try {
    strResult = rest.fullRequestNoBody('GET', '/?location');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final responseStatusCode = rest.responseStatusCode;
  print('Response status code = $responseStatusCode');
  if (responseStatusCode != 200) {
    print(rest.responseHeader);
    print(strResult);
    print('Failed.');
    return;
  }

  print(strResult);

  // The result contains XML like this:
  // <?xml version="1.0" encoding="UTF-8"?>
  // <LocationConstraint xmlns="http://s3.amazonaws.com/doc/2006-03-01/">us-west-2</LocationConstraint>

  // Get the "us-west-2" from the XML
  final xml = CkXml();
  xml.loadXml(strResult);
  print('region = ${xml.content}');
}