Node.js Advanced Training

Required

• JavaScript Base
• JavaScript Advanced
• MongoDB Base
• Redis Base
• Linux Base

Actual for versions:

• Node.js 4.2+
• Mongo 3.2+
• Redis 3.0+

Program (total: 30h)

Training Overview (15m)

JavaScript

JavaScript Init Check Point (2h)

• Variables
• Conditions
• Loops
• Functions
• Prototypes
• Asynchronous functions

New in ECMAScript 2015 (ES6) (2h) [Homework]

• Block scoping
• Collections
• Classes
• Generators
• Promises
• Symbols
• Template strings
• Arrow Functions

JavaScript Style Guides (15m)

• Airbnb Coding Style
• Google JavaScript Style
• JavaScript "Standard" Style
• Crockfords’s Coding Standards
• Node.js Coding Style
• NPM "Funny" Coding Style
• Idiomatic JavaScript Coding Style

Node.js

Philosophy (15m)

• Small core
• Small modules
• Small surface area
• Simplicity and pragmatism

Design Fundamentals (1h)

• Conceptions

  • Asynchronous
  • Event Loop
  • IO operations
  • Non blocking

• Components

  • V8
  • libuv

Getting started (15m)

• Versions of Node.js
• Installation Node.js
• CLI commands
• First scripts

Errors Examples (15m)

• System errors
• Standard JavaScript errors
• Assertion Errors
• Custom errors

Modules and NPM (1h) [Homework]

• How it works?
• Supported formats
• Order of load and resolving algorithm
• The module cache
• NPM registry

Core modules (2h)

• Console
• Process
• Timers
• Errors
• Events
• Stream
• File System
• HTTP
• Crypto
• Child Processes

Useful NPM modules (1h)

• Lodash
• Async / Neo-async
• WS
• MongoDB
• Redis
• Postgres

Build your own modules (1h)

• File structure
• Deep with package.json
• Local packages
• Publish to NPM Registry
• Using in application

Common Patterns in Node.js (1h)

• Callbacks
• Error-first
• Async function in any case
• Recursive async functions

Design Patterns in Node.js (4h)

• Creational Design Patterns

  • Singleton
  • Factory
  • Abstract Factory

• Structural Design Patterns

  • Adapter
  • Composite
  • Decorator
  • Facade
  • Bridge
  • Proxy

• Behavioral Design Patterns

  • Observer

Asynchronous Control Flow (2h)

• The difficulties

  • The callback hell
  • Specific flows

• Flows

  • Sequential execution
  • Parallel execution
  • Limited parallel execution

• Solutions

  • Pure JS functions
  • Async library
  • Promises
  • Generators

Wiring modules (1h)

• Hardcoded dependency
• Dependency injection
• Service locator
• Dependency injection container

Recipes for yours applications (2h)

• Run long sync operations
• Run heavy CPU operations
• Connection to MongoDB
• Repository pattern
• ...

Testing in Node.js (3h)

• What we test?
  • Cases
  • Priority
• How to do your testing most effective and fast?
  • Classes
  • Boundary
  • Test levels
  • Piramida
• Approaches
  • TDD
  • BDD
  • Pairwise
  • Mocks
• Tools and libraries
  • Mocha
  • Should
  • Supertest
  • Sinon
• Code Coverage
• Patterns and best practices in testing
• Continuous Integration
  • Conception
  • Travis CI
• Continuous Delivery
  • Conception

Documentation (1h)

• Approaches

  • README Driven Development
  • Reference documentation
  • Unibutique Language
  • Changelog
  • License

• Formats

  • Markdown
  • RAML

The design and architecture of the application (1h)

• MVC
• DDD
• SOA
• Micro-services

Projects: Common recommendations (1h)

• 12 factors app
• Configuration
• Logging
• Monitoring
• Profiling
• Connection to DBs and external services

Project 1: Simple web-site

• Express
• Serving static content by Node.js
• Using Nginx as reverse proxy and server of static content

Project 2: Service with REST API

• Express
• REST API design
• REST API testing

Project 3: Tiny cloud (micro-services)

• Micro-services overview
• Communication between services
• HTTP and Message Broker for communication
• Testing of micro-services

Performance and Scaling of application and system (2h)

• Scaling

  • What is scaling?
  • Scaling Law of applications
  • Methods of scaling applications

• Performance

  • What is performance?
  • What should we measure?
  • Tools for performance tests (Yandex.Tank, ab, siege)
  • Analysis of the results
  • Recommendations for scaling

• Cache in applications

Profiling and optimizations of application and system (2h)

• Top most common mistakes which fail performance

• Profiling

  • Memory
  • CPU
  • Blocking of EventLoop

• Tools

Yours applications in production (1h)

• Best practices of logging
• Orchestration (Ansible)

Distribution of your application (Docker) (1h)

• What is Docker?
• Create Docker image with your application
• Run your applications
• How to run own cloud in 1 click? (Docker Compose)

Final Q&A (1h)

Author

• Andrii Chyzh

License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.