websocket_center v0.1.6

DESCRIPTION

version: v0.1.6 author: Blind Holmes

This is a frame of websocket developers for nodejs v10.15.2

FEATURE

• DISTRIBUTED
• HIGH AVAILABILITY
• HIGH PERFORMANCE
• PURE WEBSOCKET PROTOCOL - SECOND WEBSOCKET PROTOCOL SUPPORT - NATIVE WEBSOCKET PING/PONG SUPPORT
• EXTEND PROTOCOL SUPPORT - ON MESSAGE PING/PONG SUPPORT
• REDIS CONNECTION POOL

ILLUSTRATION

USEAGE

Download the full project folder

install all package form folder root path the package.js file like:

npm install

and run app.js file with node

node app.js

then your websocket project was already run.

RULE

NOW THESE MESSAGE IS VERY IMPORTANT

This frame is not only a server use to get connection but also a client use to send command.

All message send and recive use JSON object.

DATA FORMAT

All project send message must be a json object.

Like connection.sendMsg({success: true});

THE CONFIG FILE IN /config/config.js

	this.http = {
		port: 8080
	};
	
	this.websocket = {
	    keepalive: true,
	    keepaliveInterval: 3000,
	    dropConnectionOnKeepaliveTimeout: true,
	    keepaliveGracePeriod: 60000,
	    autoAcceptConnections: false,
	    useSecProtocols: true,
	    secProtocols: 'echo-protocol'
	};
	
	// TEST CONFIG
	this.redis = {
	    host: '127.0.0.1', // default 
	    port: 6379, // default 
	    max_clients: 30, // defalut 
	    perform_checks: false, // checks for needed push/pop functionality
	    database: 0, // database number to use
	    perfix: "websocket_",
	    options: {
	    	auth_pass: '233233233'
	    } // options for createClient of node-redis, optional 
	};
	
	this.echoRule = {
	    enabled: false,
	    pingMsg: {          //INIT ping massage JSON OBJ
	        type: 'ping'
	    },
	    pongMsg: {
	        type: 'pong'    //INIT pong massage JSON OBJ
	    },
	    pingInterval: 3,    //second
	    outOfCountKickConnection: 5,   // out of this count then kick this connection
	};

	this.gatewayHostName = 'ws://192.168.10.102';

echoRule:

if your websocket keepalive ping/pong is not support by ISP.

then you can use a message ping/pong to keep connection alive.

change the enable to true to enable the message ping/pong.

pingInterval is second for send a ping message to all client pre time.

pingMsg will init the ping data format;

http:

port: The listen port number of your web server;

websocket:

keepalive: boolean of use websocket ping/pong.

keepaliveInterval: int second of every ping time.

API

• connection.sendMsg(jsonObject)

  		send to this connection a msessage with Json Object.

• connection.sendUTF(string)

  		send to this connection a msessage with String.

• connection.close()

  		close this connection.

• connection.ping(data)

  		send to this connection a websocket ping.

• connection.pong(data)

  		send to this connection a websocket pong.

• fns.sendToRemoteClientServer(wsAddress, callback)

  		send the message to remote websocket server.
  		websocket address like "ws://127.0.0.1"
  
  		callback param is this connection
  
  		useage:
  
  		fns.sendToRemoteClientServer("ws://127.0.0.1", function (connection) {
  			connection.sendMsg({msg: 'hello world'});
  		});
  	

• fns.registerWsServerAddress(wsAddress)

  		register the argument to websocket address like:
  
  		fns.registerWsServerAddress("ws://127.0.0.1");

• fns.getClientIdByUniqueid(uniqueId, callback)

• fns.bindUniqueIdToClient(uniqueId, clientId, callback)
• fns.bindClientIdToServerAddress(clientId, serverAddress, callback)
• fns.unbindClientId(clientId)
• fns.sendToRemoteClient(clientId, json)
• fns.sendToAllClient(json)
• fns.sendToLocalClientById(clientId, msgJson)
• fns.sendToAllLocatClient(msgJson)
• fns.getIPAdress()

message data rule

	{
		identity: String
		command: String
		snedMsg: String
	}

identity

	this is in message send to websocket server on message only can be responseived.
	server recive date only accept identity "backend", "client", "gateway".
	like {identity: "backend"}

command

	this is in message send to websocket server on message only can be responseived.
	server recive date only accept command:

sendToClientById, sendToAllClient, sendToLocalClientById, sendToAllLocatClient. { identity: 'backend', command: 'sendToClientById', clientId: clientId, sendMsg: { type: 'count', count: count, serial: serial } };