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This is a simple example of the MQTT protocol with Node.js. The client code has also been tested with a combination of C++ servers and clients.

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#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#

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When you need to use scalar arguments after function arguments use one of the following approaches:

delayed_ping = (client) ->
  log "delayed_ping"
  setTimeout (c) -> 
               log 'ping'
               c.pingreq {}
             , KEEP_ALIVE_SEC*1000

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-- -------------------------------------------------------------------------------------------------------
--  A SQL script for importing GFTS data from the State of Delaware into a MySQL database.
--
--  Copyright 2010 Mark J. Headd
--  http://www.voiceingov.org
--  
--  This file is free software; you can redistribute it and/or modify it under the terms of the 
--  GNU Library General Public License as published by the Free Software Foundation; either version 2 of the 
--  License, or (at your option) any later version.
--  This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 

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-- -------------------------------------------------------------------------------------------------------
--  A SQL script for importing GFTS data from the State of Delaware into a MySQL database.
--
--  Copyright 2010 Mark J. Headd
--  http://www.voiceingov.org
--  
--  This file is free software; you can redistribute it and/or modify it under the terms of the 
--  GNU Library General Public License as published by the Free Software Foundation; either version 2 of the 
--  License, or (at your option) any later version.
--  This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 

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-- ----------------------------------------------------------------------------------------------------
-- Stored Procedures for querying GFTS data from the State of Delaware in a MySQL database.
--
-- Copyright 2010 Mark J. Headd
-- http://www.voiceingov.org
--  
-- This file is free software; you can redistribute it and/or modify it under the terms of the 
-- GNU Library General Public License as published by the Free Software Foundation; either version 2 of the 
-- License, or (at your option) any later version.
-- This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 

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parse(Text) when is_binary(Text) ->
  parse(binary_to_list(Text));

parse(Text) when is_list(Text) ->
  parse(Text, [], 0, []).

parse(Text, Env, Line, Acc) ->
  case erl_scan:tokens([], Text, Line) of
    {done, {ok, Scanned, NewLine}, Rest} ->
      {ok, Parsed} = erl_parse:parse_exprs(Scanned),

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# Five lines of code that will make your underscore + CoffeeScript use cleaner.
# Creates an underscore function for each function in to_reverse with R (short for Reversed) appended to the name.
# The R version moves the function argument (first argument in normal underscore) to the end, 
# so you can write:
$(window).scroll _.throttleR 500, ->
    console.log "This print's at most every 500ms"

# Instead of:
$(window).scroll _.throttle ->
        console.log "This prints at most every 500ms too"

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CREATE TABLE Subman_Publisher
(
  id                    string AUTO PRIMARY KEY, -- auto-generated, uuid
  stacks                set of string REFERENCES Subman_Stack, -- primary key ref
  subscription_count    int
);

CREATE TABLE Subman_Stack 
(

nivertech

This is a simple example of the MQTT protocol with Node.js. The client code has also been tested with a combination of C++ servers and clients.