Spry

Next-generation Dart server framework. Build modern servers and deploy them to the runtime you prefer.

Quick Start

Install the package:

dart pub add spry

Create a minimal project structure:

.
├─ routes/
│  └─ index.dart
└─ spry.config.dart

spry.config.dart

import 'package:spry/config.dart';

void main() {
  defineSpryConfig(
    host: '127.0.0.1',
    port: 4000,
    target: BuildTarget.dart,
  );
}

routes/index.dart

import 'package:spry/spry.dart';

Response handler(Event event) {
  return Response.json({
    'message': 'hello from spry',
    'runtime': event.context.runtime.name,
    'path': event.request.url.path,
  });
}

Start the dev server:

dart run spry serve

Core Ideas

• routes/ defines request handlers with file routing
• middleware/ and _middleware.dart shape cross-cutting request behavior
• _error.dart provides scoped error handling
• public/ serves static assets directly
• spry.config.dart selects the runtime target and build behavior

Runtime Targets

Spry can emit output for:

• Dart VM
• Node.js
• Bun
• Cloudflare Workers
• Vercel

Documentation

Read the v7 documentation at spry.medz.dev.

Start here:

• Getting Started
• File Routing
• Configuration
• Deploy Overview

License

MIT

Sponsors

Spry framework is an MIT licensed open source project with its ongoing development made possible entirely by the support of these awesome backers. If you'd like to join them, please consider sponsoring Seven(@medz) development.

Contributing

Thank you to all the people who already contributed to Spry!