getting_the_response_headers.dart

// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/// Use the `headers` field of the Response object to get a headers Map.
/// The map keys are the header fields, and the map values are the values of
/// those fields.

import 'package:http/http.dart' as http;

main() async {
  var url = 'http://httpbin.org/';
  var response = await http.get(url);

  // Get the headers map.
  print(response.headers.keys);

  // Get header values.
  print(
      "access-control-allow-origin' = ${response.headers['access-control-allow-origin']}");
  print("content-type = ${response.headers['content-type']}");
  print("date = ${response.headers['date']}");
  print("content-length = ${response.headers['content-length']}");
  print("connection = ${response.headers['connection']}");
}