Cumulus is a high-level framework that makes developing application logic on top of Firebase quick and simple.

Features

Cumulus has the following bonza features:

• Simple, straightforward configuration of function endpoints
• Routable endpoints
• Common interface for routable and non-routable endpoints
• Named parameters for routable endpoints (e.g.: /users/:id)
• Querystring parameter parsing

Installing

Cumulus requires Dart 2.0+.. Cumulus requires the new build_runner system to compile with dart2js/dartdevc and these are not available in the Dart 1.x toolchain. You should add the following to your pubspec:

environment:
  sdk: '>= 2.0.0-dev <3.0.0'

To install, add the following line to the dependencies section of your pubspec.yaml file:

dependencies:
  ...
  cumulus: ^1.0.0

You can then import cumulus using:

import 'package:cumulus/cumulus.dart';

Getting started

TBD - how to set up a project using dart

Next, we need to create an instance of a CumulusApp in the main function of your index.dart file. Something like:

void main() {
  CumulusApp app = new CumulusApp.appWithDefaults();
  app.addHandler("/welcome", handler: welcomeHandler);
}

Once this is done, you can define your handlers. For now we will add it to the index.dart file directly. Our handler looks like:

welcomeHandler(HandlerContext context, Parameters parameters) {
  final res = context.response;
  res.statusCode = 200;
  res.headers.contentType = ContentType.JSON;
  res.write(json.encode({
    "message": "HELLO!!!!",
  }));
  res.close();
}

At this point you can run the build and then deploy your function.

FAQ

Why should I use this and not ____?

We prefer you use whatever you want. Cumulus is, most likely, no better or worse than the alternatives.

Cumulus was designed and developed because of an actual need to make working with Firebase Functions easier and faster. Developing apps should be fun, not tedious boilerplate and confusing templates. Hopefully Cumulus works for you personally.

Give it a try and if you like it, let us know! Either way, we love feedback.

Has it been tested in production? Can I use it in production?

The code here is built on top of (mostly) two other libraries:

• dazza
• firebase-functions-interop

The Yakka website uses this code in production and Yakka uses it for both internal and external clients as well. That said, code is always evolving. We plan to keep on using it in production but we also plan to keep on improving it. If you find a bug, let us know!

Who the f*ck is Yakka?

Yakka is the premier Flutter agency and a kick-ass product company. We focus on the work. Our stuff is at http://theyakka.com. Go check it out.

Outro

Credits

Again, without the firebase-functions-interop library by Anatoly Pulyaevskiy none of this would be possible. Go and star the project!

Cumulus is sponsored, owned and maintained by Yakka LLC. Feel free to reach out with suggestions, ideas or to say hey.

Security

If you believe you have identified a serious security vulnerability or issue with Cumulus, please report it as soon as possible to [email protected]. Please refrain from posting it to the public issue tracker so that we have a chance to address it and notify everyone accordingly.

License

Cumulus is released under a modified MIT license. See LICENSE for details.