https://github.com/sebyx07/opal-express-socketio

Opal Ruby + Express + Socket.io
https://github.com/sebyx07/opal-express-socketio

express nodejs opal realtime ruby socketio websockets

Last synced: 3 days ago
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Opal Ruby + Express + Socket.io

• Host: GitHub
• URL: https://github.com/sebyx07/opal-express-socketio
• Owner: sebyx07
• License: mit
• Created: 2019-10-20T13:46:16.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2022-12-11T10:06:49.000Z (almost 2 years ago)
• Last Synced: 2024-08-02T11:23:48.105Z (3 months ago)
• Topics: express, nodejs, opal, realtime, ruby, socketio, websockets
• Language: Ruby
• Size: 1010 KB
• Stars: 22
• Watchers: 3
• Forks: 0
• Open Issues: 3
• Metadata Files:
  • Readme: readme.MD
  • License: LICENSE

Awesome Lists containing this project

• awesome-opal - Opal Node server with Express.js and Socket.io Demo Chat App - Project which uses Opal (Ruby) with a Node.js server, Express and Socket.io to build a real time chat (Uncategorized / Uncategorized)

README

        
# Opal implementation of a simple server with Express and Socket.io

Demo https://opal-realtime-socket-express.herokuapp.com/

### Run

Installation

```bash

git clone https://github.com/sebyx07/opal-express-socketio.git opal-server

cd opal-server

bundle install && yarn install # install deps

```

Update index.html

```js

var socket = io.connect('https://opal-realtime-socket-express.herokuapp.com', {transports:['websocket']});

// with

var socket = io.connect('http://localhost:8000', {transports:['websocket']});

```

### Usage

`rake` it's the default rake task that starts the server

go to http://localhost:8000

```ruby

Server.new(8000) do |s, io|

  s # you can access express methods: with get, post, use, etc. Most is supported

    # callbacks, you replace them with do; end blocks

  io # you can use socket-io methods: on, emit etc. Most is supported

     #  socket must be wrapped using Native()

end

```

### Example server usage

```ruby

Server.new(8000) do |s, io|

  # express part

  s.use(Logger) # use middlewares

  s.start! # start the server

  s.get("/") do |_, res| # handle get to root request

    res.sendFile(s.view("index.html")) # send the index html file

  end

  s.get("/:name") do |req, res| # handle dynamic requests

    res.send(req.params.name)

  end

  # socket io part

  io.on 'connection' do |socket| # initialize socket io connection

    socket = Native(socket) # if you have problems with apply for a object, just Native() it

    socket.on('chat message') do |msg| # listen for messages

      io.emit('chat message', msg) # send it back, to all clients

    end

    socket.on('disconnect') do # handle disconnect

      p "disconnect"

    end

  end

end

```