mariusvw

WebSockets - An Introduction

WebSockets is a modern HTML5 standard which makes communication between client and server a lot more simpler than ever. We are all familiar with the technology of sockets. Sockets have been fundamental to network communication for a long time but usually the communication over the browser has been restricted. The general restrictions

• The server used to have a permanent listener while the client (aka browser) was not designated any fixed listener for a more long term connection. Hence, every communication was restricted to the client demanding and the server responding.
• This meant that unless the client requested for a particular resource, the server was unable to push such a resource to the client.
• This was detrimental since the client is then forced to check with the server at regular intervals. This meant a lot of libraries focused on optimizing asynchronous calls and identifying the response of asynchronous calls. Notably t

mariusvw

<?php

    /**
     * Class Afas
     * 
     * This class has 3 static functions for accessing data using the Afas GetConnectors and UpdateConnectors.
     * It includes the GET, POST and PUT request in their valid format.
     *
     * IMPORTANT: For it to work, remember to change the BASE_URL and TOKEN constants in the class.
     *

mariusvw

#!/bin/sh
#
# This will remove Haskell Platform
#
sudo rm -rf /Library/Frameworks/GHC.framework
sudo rm -rf /Library/Haskell
sudo rm -rf /var/db/receipts/org.haskell.HaskellPlatform.*
sudo find -L /usr/local -type l -print0 | sudo xargs -0 rm

mariusvw

An Ansible summary

Patterns

• all (or *)
• hostname: foo.example.com
• groupname: webservers
• or: webservers:dbserver
• exclude: webserver:!phoenix
• intersection: webservers:&staging