angel_validate 3.0.0-alpha 
angel_validate: ^3.0.0-alpha copied to clipboard
angel-dart.devStrongly-typed form handlers and validators for the Angel framework.
import 'package:angel_framework/angel_framework.dart';
import 'package:angel_framework/http.dart';
import 'package:angel_validate/angel_validate.dart';
import 'package:http_parser/http_parser.dart';
import 'package:logging/logging.dart';
import 'package:pretty_logging/pretty_logging.dart';
main() async {
Logger.root
..level = Level.ALL
..onRecord.listen(prettyLog);
var app = Angel(logger: Logger('angel_validate'));
var http = AngelHttp(app);
var todos = <Todo>[];
/// We can combine fields into a form; this is most
/// useful when we immediately deserialize the form into
/// something else.
var todoForm = Form(fields: [
TextField('text'),
BoolField('is_complete'),
]);
/// We can directly use a `Form` to deserialize a
/// request body into a `Map<String, dynamic>`.
///
/// By calling `deserialize` or `decode`, we can populate
/// concrete Dart objects.
app.post('/', (req, res) async {
var todo = await todoForm.deserialize(req, Todo.fromMap);
todos.add(todo);
await res.redirect('/');
});
/// You can also use `Field`s to read directly from the
/// request, without `as` casts.
///
/// In this handler, we read the value of `name` from the query.
app.get('/hello', (req, res) async {
var nameField = TextField('name');
var name = await nameField.getValue(req, query: true);
return 'Hello, $name!';
});
/// Simple page displaying a form and some state.
app.get('/', (req, res) {
res
..contentType = MediaType('text', 'html')
..write('''
<!doctype html>
<html>
<body>
<h1>angel_validate</h1>
<ul>
${todos.map((t) {
return '<li>${t.text} (isComplete=${t.isComplete})</li>';
}).join()}
</ul>
<form method="POST">
<label for="text">Text:</label>
<input id="text" name="text">
<br>
<label for="is_complete">Complete?</label>
<input id="is_complete" name="is_complete" type="checkbox">
<br>
<button type="submit">Add Todo</button>
</form>
</body>
</html>
''');
});
app.fallback((req, res) => throw AngelHttpException.notFound());
app.errorHandler = (e, req, res) {
res.writeln('Error ${e.statusCode}: ${e.message}');
for (var error in e.errors) {
res.writeln('* $error');
}
};
await http.startServer('127.0.0.1', 3000);
print('Listening at ${http.uri}');
}
class Todo {
final String text;
final bool isComplete;
Todo(this.text, this.isComplete);
static Todo fromMap(Map map) {
return Todo(map['text'] as String, map['is_complete'] as bool);
}
}Metadata
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Publisher
Metadata
Strongly-typed form handlers and validators for the Angel framework.
Repository (GitHub)
View/report issues
License
MIT (LICENSE)
Dependencies
angel_framework, duration, html_builder, http_parser, image, matcher
