smartsocket

easy and secure websocket communication, Typescript ready

Availabililty

Status for master

Usage

We recommend the use of typescript. Under the hood we use socket.io and shortid for managed data exchange.

Serverside

import * as smartsocket from "smartsocket";
import * as q from q // q is a promise library

// The smartsocket listens on a port and can receive new socketconnection requests.
let mySmartsocket = new smartsocket.Smartsocket({
    port: 3000 // the port smartsocket will listen on
});

// A socket role can be referenced by SocketFunctions.
// All SocketRequests carry authentication data for a specific role.
// SocketFunctions now which roles are allowed to execute them
let mySocketRole = new smartsocket.SocketRole({
    name: "someRoleName",
    passwordHash: "someHashedString"
});

// A SocketFunction executes a referenced function and passes in any data of the corresponding request.
// The referenced function must return a promise and resolve with any data
// Any request will be carries a unique identifier. If the referenced function's promise resolved any passed on argument will be returned to the requesting party 
let testSocketFunction1 = new smartsocket.SocketFunction({
    funcName:"testSocketFunction1",
    funcDef:(data) => {
        console.log('testSocketFunction1 executed successfully!')
    },
    allowedRoles:[mySocketRole] // all roles that have access to a specific function
});

// A smartsocket exposes a .clientCall() that gets
// 1. the name of the SocketFunctin on the client side
// 2. the data to pass in
// 3. And a target connection (there can be multiple connections at once)
// any unique id association is done internally
mySmartsocket.clientCall("restart",data,someTargetConnection)
    .then((responseData) => {

    });

Client side

import * as smartsocket from "smartsocket";

// A SmartsocketClient is different from a Smartsocket in that it doesn't expose any public address
// Thus any new connections must be innitiated from the client
let testSmartsocketClient = new smartsocket.SmartsocketClient({
    port: testConfig.port,
    url: "http://localhost",
    password: "testPassword",
    alias: "testClient1",
    role: "testRole1"
});

// You can .connect() and .disconnect() from a Smartsocket
testSmartsocketClient.connect()
    .then(() => {
        done();
    });

// The client can also specify SocketFunctions. It can also specify Roles in case a client connects to multiple servers at once
let testSocketFunction2 = new smartsocket.SocketFunction({
    funcName: "testSocketFunction2",
    funcDef: (data) => {}, // the function to execute, has to return promise
    allowedRoles:[]
});


// A SmartsocketClient can call functions on the serverside using .serverCall() analog to the Smartsocket's .clientCall method.
mySmartsocketClient.serverCall("function",functionCallData)
    .then((functionResponseData) => { // the functionResponseData comes from the server... awesome, right?
        
    });;

NOTE:
you can easily chain dependent requests on either the server or client side with promises.
data is always a js object that you can design for your specific needs.
It supports buffers for large binary data network exchange.