angel3_hot

Description:

angel3 hot

Angel3 Hot Reloader #





Supports hot reloading of Angel3 servers on file changes. This is faster and more reliable than merely reactively restarting a Process. This package only works with the Angel3 framework.
Not recommended to use in production, unless you are specifically intending for a "hot code push" in production.
Installation #
In your pubspec.yaml:
dependencies:
angel3_framework: ^8.0.0
angel3_hot: ^8.0.0
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Usage #
This package is dependent on the Dart VM service, so you must run Dart with the --observe (or --enable-vm-service) argument. Usage is fairly simple. Pass a function that creates an Angel server, along with a collection of paths to watch, to the HotReloader constructor. The recommended pattern is to only use hot-reloading in your application entry point. Create your Angel instance within a separate function, conventionally named createServer.
You can watch:

Files
Directories
Globs
URI's
package: URI's

import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'package:angel3_framework/angel3_framework.dart';
import 'package:angel3_hot/angel3_hot.dart';
import 'package:logging/logging.dart';
import 'src/foo.dart';

main() async {
var hot = HotReloader(createServer, [
Directory('src'),
'main.dart',
Uri.parse('package:angel3_hot/angel3_hot.dart')
]);
await hot.startServer('127.0.0.1', 3000);
}

Future<Angel> createServer() async {
var app = Angel()..serializer = json.encode;

// Edit this line, and then refresh the page in your browser!
app.get('/', (req, res) => {'hello': 'hot world!'});
app.get('/foo', (req, res) => Foo(bar: 'baz'));

app.fallback((req, res) => throw AngelHttpException.notFound());

app.encoders.addAll({
'gzip': gzip.encoder,
'deflate': zlib.encoder,
});

app.logger = Logger('angel')
..onRecord.listen((rec) {
print(rec);
if (rec.error != null) {
print(rec.error);
print(rec.stackTrace);
}
});

return app;
}
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Customising Response Header #
The following code snippet removes X-FRAME-OPTIONS and adds X-XSRF-TOKEN to the response header.
import 'dart:io';
import 'package:angel3_hot/angel3_hot.dart';
import 'server.dart';

void main() async {
var hot = HotReloader(createServer, [
Directory('src'),
'server.dart',
// Also allowed: Platform.script,
Uri.parse('package:angel3_hot/angel3_hot.dart')
]);
var http = await hot.startServer('127.0.0.1', 3000);

// Remove 'X-FRAME-OPTIONS'
http.defaultResponseHeaders.remove('X-FRAME-OPTIONS', 'SAMEORIGIN');

// Add 'X-XSRF-TOKEN'
http.defaultResponseHeaders.add('X-XSRF-TOKEN',
'a591a6d40bf420404a011733cfb7b190d62c65bf0bcda32b57b277d9ad9f146e');
}
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