83 lines
2.6 KiB
Markdown
83 lines
2.6 KiB
Markdown
# Angel3 Hot Reloader
|
|
|
|
|
|
[](https://dart.dev/null-safety)
|
|
[](https://gitter.im/angel_dart/discussion)
|
|
[](https://github.com/dukefirehawk/angel/tree/master/packages/hot/LICENSE)
|
|
|
|
|
|
|
|
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](https://pub.dev/packages/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`:
|
|
|
|
```yaml
|
|
dependencies:
|
|
angel3_framework: ^8.0.0
|
|
angel3_hot: ^8.0.0
|
|
```
|
|
|
|
## 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 rest is history!!!
|
|
|
|
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
|
|
|
|
```dart
|
|
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;
|
|
}
|
|
```
|