packages/webview_flutter/webview_flutter_web/lib/src/http_request_factory.dart

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:html';

/// Factory class for creating [HttpRequest] instances.
class HttpRequestFactory {
  /// Creates a [HttpRequestFactory].
  const HttpRequestFactory();

  /// Creates and sends a URL request for the specified [url].
  ///
  /// By default `request` will perform an HTTP GET request, but a different
  /// method (`POST`, `PUT`, `DELETE`, etc) can be used by specifying the
  /// [method] parameter. (See also [HttpRequest.postFormData] for `POST`
  /// requests only.
  ///
  /// The Future is completed when the response is available.
  ///
  /// If specified, `sendData` will send data in the form of a [ByteBuffer],
  /// [Blob], [Document], [String], or [FormData] along with the HttpRequest.
  ///
  /// If specified, [responseType] sets the desired response format for the
  /// request. By default it is [String], but can also be 'arraybuffer', 'blob',
  /// 'document', 'json', or 'text'. See also [HttpRequest.responseType]
  /// for more information.
  ///
  /// The [withCredentials] parameter specified that credentials such as a cookie
  /// (already) set in the header or
  /// [authorization headers](http://tools.ietf.org/html/rfc1945#section-10.2)
  /// should be specified for the request. Details to keep in mind when using
  /// credentials:
  ///
  /// /// Using credentials is only useful for cross-origin requests.
  /// /// The `Access-Control-Allow-Origin` header of `url` cannot contain a wildcard (///).
  /// /// The `Access-Control-Allow-Credentials` header of `url` must be set to true.
  /// /// If `Access-Control-Expose-Headers` has not been set to true, only a subset of all the response headers will be returned when calling [getAllResponseHeaders].
  ///
  /// The following is equivalent to the [getString] sample above:
  ///
  ///     var name = Uri.encodeQueryComponent('John');
  ///     var id = Uri.encodeQueryComponent('42');
  ///     HttpRequest.request('users.json?name=$name&id=$id')
  ///       .then((HttpRequest resp) {
  ///         // Do something with the response.
  ///     });
  ///
  /// Here's an example of submitting an entire form with [FormData].
  ///
  ///     var myForm = querySelector('form#myForm');
  ///     var data = new FormData(myForm);
  ///     HttpRequest.request('/submit', method: 'POST', sendData: data)
  ///       .then((HttpRequest resp) {
  ///         // Do something with the response.
  ///     });
  ///
  /// Note that requests for file:// URIs are only supported by Chrome extensions
  /// with appropriate permissions in their manifest. Requests to file:// URIs
  /// will also never fail- the Future will always complete successfully, even
  /// when the file cannot be found.
  ///
  /// See also: [authorization headers](http://en.wikipedia.org/wiki/Basic_access_authentication).
  Future<HttpRequest> request(String url,
      {String? method,
      bool? withCredentials,
      String? responseType,
      String? mimeType,
      Map<String, String>? requestHeaders,
      dynamic sendData,
      void Function(ProgressEvent e)? onProgress}) {
    return HttpRequest.request(url,
        method: method,
        withCredentials: withCredentials,
        responseType: responseType,
        mimeType: mimeType,
        requestHeaders: requestHeaders,
        sendData: sendData,
        onProgress: onProgress);
  }
}