ishan-marikar

<mjml>
    <mj-body>
      <mj-container background-color="#d6dde5">
        <mj-section 
          locked="true" 
          padding-bottom="20" 
          padding-top="20">
          
          <mj-column 
            width="66.66666666666666%" 

ishan-marikar

// Stateful is a simple implementation of the state pattern for javascript.
//
// Read more on this design pattern here:
// -> http://sourcemaking.com/design_patterns/state
//
// Initialize Stateful by passing it an object, the name of the initial state
// (defaults to "default"), and an optional hash of interfaces that will be
// applied for each state. If these interfaces are not passed, they default to
// the object's constructor's States property. So, for example:
//

ishan-marikar

// Starkflow comments + github project node js 
// + https://github.com/jrgcubano/face-detection-node-opencv
// + http://blog.stevenedouard.com/stroll-node-facial-recognition-3rd-party-apis

/*I believe that you're using the node-opencv library ? You will need some more steps. You have to train your opencv system which than allows you to use the method "predictSync" from FaceRecongizer().

The node-opencv library has a FaceRecognizer Object which you first initialize.

Initialize FaceRecognizer: var FaceRecognizer = new cv.FaceRecognizer();
You have to read all the images, create a specific array and train your FaceRecognizer with that. For my purpose, I'm saving each user in a DB and they get a unique ID which I'm using to create a specific subfolder and this is later used. Here is my code:

ishan-marikar

var project_name = "YOUR_PROJECT_NAME",
    project_url = 'YOUR_GIT_URL',
    project_destination_server = 'USER@SERVER',
    project_destination_dir = '/PROJECT_DIRECTORY',
    webhookUri = "SLACK_TOKEN_URI",
    Slack = require('slack-node'),
    slack = new Slack(),
    notify = function(text) {
        slack.webhook({
            channel: "#notifications",

ishan-marikar

Shipit Deploy

Shipit is a pretty awesome universal automation and deployment tool written in JavaScript.

Setup your server

(this would ideally be done with automated provisioning)

• add a deploy user with password-less ssh see this gist
• install forever npm install -g pm2

Install shipit

• npm install -g shipit-cli

ishan-marikar

// Part of https://github.com/chris-rock/node-crypto-examples

// Nodejs encryption of buffers
var crypto = require('crypto'),
    algorithm = 'aes-256-ctr',
    password = 'd6F3Efeq';

var fs = require('fs');
var zlib = require('zlib');

ishan-marikar

/**
 * Get a random floating point number between `min` and `max`.
 * 
 * @param {number} min - min number
 * @param {number} max - max number
 * @return {number} a random floating point number
 */
function getRandomFloat(min, max) {
  return Math.random() * (max - min) + min;
}

ishan-marikar

Minimum Viable Async with Node 6

With the release of Node 6.0.0, the surface of code that needs transpilation to use ES6 features has been reduced very dramatically.

This is what my current workflow looks like to set up a minimalistic and fast microservice using micro and async + await.

The promise

ishan-marikar

const Promise = require("bluebird");
const request = require("request-promise");
const ID3Writer = require('browser-id3-writer');

const crypto = require('crypto');
const format = require('util').format;
const fs = require("fs");
const http = require('http');

// Download a deezer song / playlist / album

ishan-marikar

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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