2.2 KiB
Body Parser
NOT YET PRODUCTION READY
Parse request bodies and query strings in Dart, as well multipart/form-data uploads. No external dependencies required.
Contents
About
I needed something like Express.js's body-parser module, so I made it here. It fully supports JSON requests.
x-www-form-urlencoded fully supported, as well as query strings. You can also include arrays in your query,
in the same way you would for a PHP application. Full file upload support will also be present by the production 1.0.0 release.
A benefit of this is that primitive types are automatically deserialized correctly. As in, if you have a hello=1.5 request, then
body['hello'] will equal 1.5 and not '1.5'. A very semantic difference, yes, but it relieves stress in my head.
Installation
To install Body Parser for your Dart project, simply add body_parser to your pub dependencies.
dependencies:
body_parser: any
Usage
Body Parser exposes a simple class called [BodyParseResult].
You can easily parse the query string and request body for a request by calling Future<BodyParseResult> parseBody.
import 'dart:convert';
import 'package:body_parser/body_parser.dart';
main() async {
// ...
await for (HttpRequest request in server) {
request.response.write(JSON.encode(await parseBody(request).body));
await request.response.close();
}
}
You can also use buildMapFromUri(Map, String) to populate a map from a URL encoded string.
This can easily be used with a library like JSON God to build structured JSON/REST APIs. Add validation and you've got an instant backend.
MyClass create(HttpRequest request) async {
God god = new God();
return god.deserialize(await parseBody(request).body, MyClass);
}
Thank you for using Body Parser
Thank you for using this library. I hope you like it.
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