Sample code for "Building RESTful Web APIs with Dart, Aqueduct and PostgreSQL (Part 2)" post on Medium (2)

fave_reads_sink.dart

router.route('/books[/:index]').listen((Request incomingRequest) async {
  String reqMethod = incomingRequest.innerRequest.method;
  String index = incomingRequest.path.variables["index"];
  
  if (reqMethod == 'GET') {
    if(index != null) {
      return new Response.ok('Showing book by index: $index');
    }
    return new Response.ok('Showing all books.');
  } else if (reqMethod == 'POST') {
    return new Response.ok('Added a book.');
  } else if (reqMethod == 'PUT') {
    return new Response.ok('Added a book.');
  } else if (reqMethod == 'DELETE') {
    return new Response.ok('Added a book.');
  }
  // If all else fails
  return new Response(405, null, 'Not sure what you\'re asking here');
});