juliangruber

Channel based network

This is about creating (social) networks without authorities or business censoring and storing all data in one locations.

Everybody has his own content and joins several channels. Channels are like chatrooms, in a way that everyone joined gets every update by everyone else and nothing persists. Channels can have restrictions, like:

• an IRC style channel only allows for text
• a twitter style channel allows 140 chars of text, links, pictures and videos
• a facebook style channel allows text, links, pictures, albums, videos etc.
• a creative channel allows canvas drawings with descriptions only

juliangruber

# bdunbar{0DD1D6364FD3AA0699A8B132}                1353965070602
  This is nifty, I guess
# bdunbar{0DD1D6364FD3AA0699A8B132}                1353965130786
  Just realized my instance of crytter is on a host that will never be exposed to 5000 from the internet
# julian{0DD1D6364FD3AA0699A8B132}                 1353966289167
  i see your messages
# julian{0DD1D6364FD3AA0699A8B132}                 1353966310930
  where is your host?
# devgeeks{C3ED27E7E1AA22E8C4D2CBC4}               1353976134845
  So, do you just replicate one server and the chain is complete?

juliangruber

/usr/local/bin/testling -> /usr/local/lib/node_modules/testling/bin/cmd.js

> testling@0.2.5 install /usr/local/lib/node_modules/testling
> browserify node_modules/schoolbus/proxy.js -o static/proxy.js


/usr/local/lib/node_modules/browserify/node_modules/deputy/node_modules/mkdirp/index.js:74
                    throw err0;
                          ^
Error: EACCES, permission denied '/home/julian/.config/browserify'

juliangruber

var levelup
try {
  levelup = require('levelup')
} catch (err) {
  // level-light would only do the minimal work to provide the levelUp API 1:1
  levelup = require('level-light')
}

db = levelup("somewhere")

juliangruber

# log the number of open connections to mongodb to statsd
mongostat --noheaders --all 1 |
awk '{if (NR!=1) {print "mongodb01.connections:" $19 "|g"}}' |
nc -w 1 -u STATSD_HOSTNAME 8125

juliangruber

var chunks = [];
req.on('data', function (chunk) { chunks.push(chunk) });
req.on('end', function () {
  var body = Buffer.concat(chunks);
});

juliangruber

Process:         Hacky [47231]
Path:            /Applications/Hacky.app/Contents/MacOS/Hacky
Identifier:      com.eliasklughammer.hackernews
Version:         1.1 (1.1)
App Item ID:     584949645
App External ID: 14000462
Code Type:       X86-64 (Native)
Parent Process:  launchd [134]
User ID:         501

juliangruber

horst

Usage

Create a server that listens for hosts:

var horst = require('horst');
var hub = horst();

juliangruber

• quick overview of leveldb
• Why are LevelDB and Node.js such a good match?
• production use of levelup
• cool modules that have been written
• plugin approach / core & userland
• levelDOWN & levelUP
• levelJS
• rvagg's approach to contributions
• Why are random reads and writes so fast and why is that important?
• What is an SST?

juliangruber

function indexOfFirstNumericArg (/* args... */) {
  return [].slice.call(arguments)
    .map(Number)   // throw out strings
    .map(Boolean)  // convert truthy arguments to true
    .indexOf(true) // find first position that is true
}

console.log(indexOfFirstNumericArg(null, 1337, 2, 'foo')); // => 1

function firstNumericArg (/* args... */) {