Index: pkg/http/lib/src/client.dart |
diff --git a/pkg/http/lib/src/client.dart b/pkg/http/lib/src/client.dart |
index bbee58d2744fa5b7e7bd67b716d4745163160291..d60df9338c987de049732e07b1f918ca621db4ed 100644 |
--- a/pkg/http/lib/src/client.dart |
+++ b/pkg/http/lib/src/client.dart |
@@ -8,75 +8,89 @@ import 'dart:io'; |
import 'base_client.dart'; |
import 'base_request.dart'; |
+import 'io_client.dart'; |
import 'streamed_response.dart'; |
import 'utils.dart'; |
-/// An HTTP client which takes care of maintaining persistent connections across |
-/// multiple requests to the same server. If you only need to send a single |
-/// request, it's usually easier to use [head], [get], [post], |
+/// The interface for HTTP clients that take care of maintaining persistent |
+/// connections across multiple requests to the same server. If you only need to |
+/// send a single request, it's usually easier to use [head], [get], [post], |
/// [put], or [delete] instead. |
/// |
-/// When creating an HTTP client class with additional functionality, it's |
-/// recommended that you subclass [BaseClient] and wrap another instance of |
-/// [BaseClient] rather than subclassing [Client] directly. This allows all |
-/// subclasses of [BaseClient] to be mutually composable. |
-class Client extends BaseClient { |
- /// The underlying `dart:io` HTTP client. |
- HttpClient _inner; |
+/// When creating an HTTP client class with additional functionality, you must |
+/// extend [BaseClient] rather than [Client]. In most cases, you can wrap |
+/// another instance of [Client] and add functionality on top of that. This |
+/// allows all classes implementing [Client] to be mutually composable. |
+abstract class Client { |
+ /// Creates a new Client using the default implementation. This implementation |
+ /// uses an underlying `dart:io` [HttpClient] to make requests. |
+ factory Client() => new IOClient(); |
- /// Creates a new HTTP client. |
- Client() : _inner = new HttpClient(); |
+ /// Sends an HTTP HEAD request with the given headers to the given URL, which |
+ /// can be a [Uri] or a [String]. |
+ /// |
+ /// For more fine-grained control over the request, use [send] instead. |
+ Future<Response> head(url, {Map<String, String> headers}); |
- /// Sends an HTTP request and asynchronously returns the response. |
- Future<StreamedResponse> send(BaseRequest request) { |
- var stream = request.finalize(); |
- |
- var completer = new Completer<StreamedResponse>(); |
- var connection = _inner.openUrl(request.method, request.url); |
- connection.onError = (e) { |
- async.then((_) { |
- // TODO(nweiz): remove this when issue 4974 is fixed |
- if (completer.future.isComplete) throw e; |
+ /// Sends an HTTP GET request with the given headers to the given URL, which |
+ /// can be a [Uri] or a [String]. |
+ /// |
+ /// For more fine-grained control over the request, use [send] instead. |
+ Future<Response> get(url, {Map<String, String> headers}); |
- completer.completeException(e); |
- }); |
- }; |
+ /// Sends an HTTP POST request with the given headers and fields to the given |
+ /// URL, which can be a [Uri] or a [String]. If any fields are specified, the |
+ /// content-type is automatically set to |
+ /// `"application/x-www-form-urlencoded"`. |
+ /// |
+ /// For more fine-grained control over the request, use [send] instead. |
+ Future<Response> post(url, |
+ {Map<String, String> headers, |
+ Map<String, String> fields}); |
- connection.onRequest = (underlyingRequest) { |
- underlyingRequest.contentLength = request.contentLength; |
- underlyingRequest.persistentConnection = request.persistentConnection; |
- request.headers.forEach((name, value) { |
- underlyingRequest.headers.set(name, value); |
- }); |
+ /// Sends an HTTP PUT request with the given headers and fields to the given |
+ /// URL, which can be a [Uri] or a [String]. If any fields are specified, the |
+ /// content-type is automatically set to |
+ /// `"application/x-www-form-urlencoded"`. |
+ /// |
+ /// For more fine-grained control over the request, use [send] instead. |
+ Future<Response> put(url, |
+ {Map<String, String> headers, |
+ Map<String, String> fields}); |
- if (stream.closed) { |
- underlyingRequest.outputStream.close(); |
- } else { |
- stream.pipe(underlyingRequest.outputStream); |
- } |
- }; |
+ /// Sends an HTTP DELETE request with the given headers to the given URL, |
+ /// which can be a [Uri] or a [String]. |
+ /// |
+ /// For more fine-grained control over the request, use [send] instead. |
+ Future<Response> delete(url, {Map<String, String> headers}); |
- connection.onResponse = (response) { |
- var headers = <String>{}; |
- response.headers.forEach((key, value) => headers[key] = value); |
+ /// Sends an HTTP GET request with the given headers to the given URL, which |
+ /// can be a [Uri] or a [String], and returns a Future that completes to the |
+ /// body of the response as a String. |
+ /// |
+ /// The Future will emit an [HttpException] if the response doesn't have a |
+ /// success status code. |
+ /// |
+ /// For more fine-grained control over the request and response, use [send] or |
+ /// [get] instead. |
+ Future<String> read(url, {Map<String, String> headers}); |
- completer.complete(new StreamedResponse( |
- response.inputStream, |
- response.statusCode, |
- response.contentLength, |
- headers: headers, |
- isRedirect: response.isRedirect, |
- persistentConnection: response.persistentConnection, |
- reasonPhrase: response.reasonPhrase)); |
- }; |
+ /// Sends an HTTP GET request with the given headers to the given URL, which |
+ /// can be a [Uri] or a [String], and returns a Future that completes to the |
+ /// body of the response as a list of bytes. |
+ /// |
+ /// The Future will emit an [HttpException] if the response doesn't have a |
+ /// success status code. |
+ /// |
+ /// For more fine-grained control over the request and response, use [send] or |
+ /// [get] instead. |
+ Future<Uint8List> readBytes(url, {Map<String, String> headers}); |
- return completer.future; |
- } |
+ /// Sends an HTTP request and asynchronously returns the response. |
+ Future<StreamedResponse> send(BaseRequest request); |
- /// Closes the client. This terminates all active connections. If a client |
- /// remains unclosed, the Dart process may not terminate. |
- void close() { |
- if (_inner != null) _inner.shutdown(); |
- _inner = null; |
- } |
+ /// Closes the client and cleans up any resources associated with it. It's |
+ /// important to close each client when it's done being used; failing to do so |
+ /// can cause the Dart process to hang. |
+ void close(); |
} |