mybackend/lib/routes/main_router.dart

import 'package:file_upload_processor/handlers/file_upload_api.dart';
import 'package:file_upload_processor/handlers/health_api.dart';
import 'package:shelf/shelf.dart' as shelf;
import 'package:shelf_router/shelf_router.dart';

class MainRouter {
  Router get router {
    final router = Router();

    router.get(
        '/health', (shelf.Request request) => HealthApi(request).response());
    router.post('/upload',
        (shelf.Request request) => FileUploadApi(request).response());
    return router;
  }
}