37 lines
1.2 KiB
Dart
37 lines
1.2 KiB
Dart
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import 'package:angel_framework/angel_framework.dart';
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import 'package:shelf/shelf.dart' as shelf;
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import 'convert.dart';
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/// Simply passes an incoming request to a `shelf` handler.
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///
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/// If the handler does not return a [shelf.Response], then the
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/// result will be passed down the Angel middleware pipeline, like with
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/// any other request handler.
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///
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/// If [throwOnNullResponse] is `true` (default: `false`), then a 500 error will be thrown
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/// if the [handler] returns `null`.
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RequestHandler embedShelf(shelf.Handler handler,
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{String handlerPath,
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Map<String, Object> context,
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bool throwOnNullResponse: false}) {
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return (RequestContext req, ResponseContext res) async {
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var shelfRequest =
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await convertRequest(req, handlerPath: handlerPath, context: context);
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try {
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var result = await handler(shelfRequest);
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if (result is! shelf.Response && result != null) return result;
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if (result == null && throwOnNullResponse == true)
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throw new AngelHttpException('Internal Server Error');
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await mergeShelfResponse(result, res);
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return false;
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} on shelf.HijackException {
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// On hijack...
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res
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..willCloseItself = true
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..end();
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} catch (e) {
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rethrow;
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}
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};
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}
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