Go

README.md

@@ -1,2 +1,3 @@
 # user_agent
 Middleware to inject a User Agent object into requests.
+For convenience's sake, it also exports the `user_agent` library.

example/basic.dart

@@ -0,0 +1,16 @@
+import 'dart:io';
+import 'package:angel_framework/angel_framework.dart';
+import 'package:angel_user_agent/angel_user_agent.dart';
+
+main() async {
+  var app = new Angel()..before.add(parseUserAgent(strict: true));
+
+  app.get(
+      '/',
+      (UserAgent ua) => ua.isChrome
+          ? 'Woohoo! You are running Chrome.'
+          : 'Sorry, we only support Google Chrome.');
+
+  var server = await app.startServer(InternetAddress.ANY_IP_V4, 3000);
+  print('Listening at http://${server.address.address}:${server.port}');
+}

lib/angel_user_agent.dart

@@ -1,20 +1,22 @@
 import 'package:angel_framework/angel_framework.dart';
-import 'package:ua_parser/ua_parser.dart' as ua;
+import 'package:user_agent/user_agent.dart';
+export 'package:user_agent/user_agent.dart';
 
-/// Injects a [ua.Client] and [ua.UserAgent] into requests.
+/// Injects a [UserAgent] into requests.
 ///
-/// If [strict] is `true`, then an invalid
-/// `User-Agent` header will throw a `400 Bad Request`.
+/// If [strict] is `true`, then requests without a user agent will be rejected.
 RequestMiddleware parseUserAgent({bool strict: true}) {
-  return (req, res) async {
-    try {
-      final client = ua.parse(req.headers.value('User-Agent'));
-      req
-        ..inject(ua.Client, client)
-        ..inject(ua.UserAgent, client.userAgent);
-    } catch (e) {
-      throw strict ?
-        new AngelHttpException.BadRequest(message: 'Invalid user agent.') : e;
+  return (RequestContext req, res) async {
+    var agentString = req.headers.value('user-agent');
+
+    if (agentString == null) {
+      throw new AngelHttpException.badRequest(
+          message: 'User-Agent header is required.');
+    } else if (agentString != null) {
+      Map<String, List<String>> map = {};
+      req.headers.forEach((k, v) => map[k] = v);
+
+      req.inject(UserAgent, new UserAgent(agentString, headers: map));
     }
 
     return true;

pubspec.yaml

@@ -6,4 +6,5 @@ homepage: https://github.com/angel-dart/user_agent
 environment:
   sdk: ">=1.19.0"
 dependencies:
-  ua_parser: ^1.0.0
+  angel_framework: ^1.0.0-dev
+  user_agent: ^1.0.0-beta