CoffeeScript client

Client

Problem

You want to use the services provided on the network.

Solution

Create a basic TCP client.

In node .js

net = require 'net'

domain = 'localhost'
port = 9001

connection = net.createConnection port, domain

connection.on 'connect', () ->
    console.log "Opened connection to #{domain}:#{port}."

connection.on 'data', (data) ->
    console.log "Received: #{data}"
    connection.end()

Use the example

Basic Server is accessible:

$ coffee basic-client.coffee
Opened connection to localhost:9001
Received: Hello, World!

Discuss

The most important work occurs during connection.on 'data' processing, when the client receives a response from the server and is most likely to schedule an answer to it.

See also Basic Server, Bi-Directional Client, and Bi-Directional Server.

Practice

• Add support for selected target domains and ports based on command line parameters or profiles.