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@chalin @kwalrath @kevmoo @domesticmouse
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// Copyright (c) 2014, 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.
// Server to basic_writer_client.dart.
// Receives JSON encoded data in a POST request and writes it to
// the file specified in the URI.
// #docregion
import 'dart:io';
import 'dart:convert';
String _host =;
Future main() async {
var server = await HttpServer.bind(_host, 4049);
await for (var req in server) {
ContentType contentType = req.headers.contentType;
HttpResponse response = req.response;
if (req.method == 'POST' &&
contentType?.mimeType == 'application/json' /*1*/) {
try {
String content =
await utf8.decoder.bind(req).join(); /*2*/
var data = jsonDecode(content) as Map; /*3*/
var fileName = req.uri.pathSegments.last; /*4*/
await File(fileName)
.writeAsString(content, mode: FileMode.write);
..statusCode = HttpStatus.ok
..write('Wrote data for ${data['name']}.');
} catch (e) {
..statusCode = HttpStatus.internalServerError
..write("Exception during file I/O: $e.");
} else {
..statusCode = HttpStatus.methodNotAllowed
..write("Unsupported request: ${req.method}.");
await response.close();
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