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node-rtm-socket
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Node RTM Socket is a thin abstraction over Socket io and redis to use Sockets with multiple servers, processes and docker containers where Redis acts as a relay between them for message passing utilizing socket.io-redis. This client expose a simple API to subscribe event handlers without worrying too much about the implementation details. Look at example
npm install @node-rtm-socket
Since we use socket.io-redis, to support the message passing you need have Redis server up and running either locally or in the production setting
const { NodeRTMSocket } = require('node-rtm-socket')
const server = http
.createServer(routeHandler)
.listen(8080, () => {
})
const rtmSocket = new NodeRTMSocket(server, { host: 'localhost', port: 6379 }, { path: '/' })
rtmSocket.onEvent('connection', (instance) => {
console.log('user connection ', instance.socketId)
})
rtmSocket.onEvent('authenticate', (instance, data) => {
instance.userPresence(data.userId)
.then(() => {
instance.joinRoom('random-room-id')
instance.notifySelf('conversation', 'random-room-id')
})
})
rtmSocket.onEvent('newMessage', (instance) => {
console.log('new message received ', instance.socketId)
})
rtmSocket.init()
For more detailed example and intergration with the UI look at example folder. By running
node example/server.js
Open the index.html in browser. Have multiple instances of browser windows and try plugging in unique different user names for conversation.
export interface INodeRtmSocketConstructor {
new (server: http.Server, redisConf: redis.SocketIORedisOptions, socketOpts?: socketIo.ServerOptions): INodeRTMSocket
}
interface SocketIORedisOptions {
key?: string
host?: string
port?: number
auth_pass?: number | string
pubClient?: any
subClient?: any
}
interface ServerOptions extends engine.ServerAttachOptions {
path?: string
serveClient?: boolean
adapter?: Adapter
origins?: string | string[]
}
export interface INodeRTMSocket {
io: socketIo.Server
onEvent(eventName: string, cb: IOnEventCallback): void
init(): void
}
This instance is based on per socket connection. On every successful socket connection an instance per user connection is created in the memory. On every callback received per event this class instance is returned
export interface IOnEventCallback {
(socketInstance: IChatEventHandler<any>, data: any): void
}
export interface IChatEventHandler<T> {
userIsPresent: boolean
userInfo: T
userId: string
socketId: string
// authenticate and upsert user presence
userPresence(userId: string): void
setUserInfo(userInfo: T): void
// join conversation room methods
joinRoom(roomId: string): void
joinMultipleRooms(roomIds: string[]): void
// emit events methods
notifySelf(eventName: string, data: string): void
notifyAllInRoom(conversationId: string, eventName: string, data: string): void
notifyAllExceptSelfInRoom(conversationId: string, eventName: string, data: string): void
}
FAQs
A think abstraction over socket.io redis for easy message passing between nodes and the client
The npm package node-rtm-socket receives a total of 0 weekly downloads. As such, node-rtm-socket popularity was classified as not popular.
We found that node-rtm-socket demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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