A high-powered HTTP server with support for dependency injection, sophisticated routing and more.
This is the core of the Angel framework. To build real-world applications, please see the homepage.
import 'package:angel_container/mirrors.dart';
import 'package:angel_framework/angel_framework.dart';
main() async {
var app = Angel(reflector: MirrorsReflector());
// Index route. Returns JSON.
app.get('/', (req, res) => res.write('Welcome to Angel!'));
// Accepts a URL like /greet/foo or /greet/bob.
app.get(
'/greet/:name',
(req, res) {
var name = req.params['name'];
res
..write('Hello, $name!')
..close();
},
);
// Pattern matching - only call this handler if the query value of `name` equals 'emoji'.
app.get(
'/greet',
ioc((@Query('name', match: 'emoji') String name) => '😇🔥🔥🔥'),
);
// Handle any other query value of `name`.
app.get(
'/greet',
ioc((@Query('name') String name) => 'Hello, $name!'),
);
// Simple fallback to throw a 404 on unknown paths.
app.fallback((req, res) {
throw AngelHttpException.notFound(
message: 'Unknown path: "${req.uri.path}"',
);
});
var http = AngelHttp(app);
var server = await http.startServer('127.0.0.1', 3000);
var url = 'http://${server.address.address}:${server.port}';
print('Listening at $url');
print('Visit these pages to see Angel in action:');
print('* $url/greet/bob');
print('* $url/greet/?name=emoji');
print('* $url/greet/?name=jack');
print('* $url/nonexistent_page');
}