https://github.com/alexeyraspopov/actor-system

Build robust and resilient message-driven systems
https://github.com/alexeyraspopov/actor-system

actor-system actors event-driven execution-context javascript message-dispatcher

Last synced: about 1 month ago
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Build robust and resilient message-driven systems

• Host: GitHub
• URL: https://github.com/alexeyraspopov/actor-system
• Owner: alexeyraspopov
• License: mit
• Created: 2017-03-19T21:53:12.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2017-06-05T15:06:15.000Z (over 7 years ago)
• Last Synced: 2024-12-01T03:33:54.488Z (about 1 month ago)
• Topics: actor-system, actors, event-driven, execution-context, javascript, message-dispatcher
• Language: JavaScript
• Homepage:
• Size: 56.6 KB
• Stars: 8
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# JavaScript Actors

This lib is a proof of concept implementation of actor system in JavaScript.

## Install

    npm install actor-system

Thanks to [@kt3k](https://github.com/kt3k) for providing the name in NPM registry.

## How to use

1. Bootstrap actor system.

```javascript

import { ActorSystem, MessageDispatcher, ExecutionContext, AnimationFrameExecutor } from 'actor-system';

const executor = new AnimationFrameExecutor(60);

const context = new ExecutionContext(executor);

const dispatcher = new MessageDispatcher(context);

const system = new ActorSystem(dispatcher);

```

Or by using default set of tools:

```javascript

import { ActorSystem } from 'actor-system';

const system = ActorSystem.fromDefaults();

```

2. Define message types.

```javascript

import { Message } from 'actor-system';

class Ping extends Message { }

class Pong extends Message { }

```

3. Implement actors.

```javascript

async function PingActor(system) {

  for await (const message of system.dispatcher) {

    switch (message.subject) {

    case Ping:

      system.dispatcher.dispatch(new Pong());

      break;

    }

  }

}

async function PongActor(system) {

  for await (const message of system.dispatcher) {

    switch (message.subject) {

    case Pong:

      system.dispatcher.dispatch(new Ping());

      break;

    }

  }

}

async function Main(system) {

  system.dispatcher.dispatch(new Ping());

}

```

4. Spawn them.

```javascript

system.spawn(PingActor);

system.spawn(PongActor);

system.spawn(Main);

```

## Articles

 * [Tasks, microtasks, queues and schedules — Jake Archibald](https://jakearchibald.com/2015/tasks-microtasks-queues-and-schedules/)