Course goal

Build a distributed, highly-available, micro-service based, scalable, cloud-agnostic NodeJS app!

Technologies

This course will help you to

Quickly dive into Nest.JS & TypeScript concepts

Organize your understanding of popular techniques and enterprise patterns

Understand how Kafka & Redis works

Gain some experience of using Docker & Kubernetes

Take a look at the distributed enterprise NodeJS application from the higher level

This course is NOT

JavaScript basics tutorial
JavaScript related only
for people without JS experience
for people who don't want to get into the infrastructure-related staff
a frontend training

Workflow

30+ minutes of theory presentation
<1 hour of practice
The trainer(s) will implement the course project online with live comments
Several trainers (2+) will be present at every lesson. The main trainer will conduct a lecture and live coding, other trainers will provide live-code assistance + filling silence moments
The main trainer will be rotated depending on the course topic
In the end, there will be a finished project, which students may run and investigate on their own

Every meeting:

Interested participants can be invited to a live coding session https://visualstudio.microsoft.com/ru/services/live-share/

Candidate requirements

Solid JavaScript basics
- Promises, generators, async functions
- Classes and OOP
- Arrays data operations and transformations
Experience using NodeJS (better) or Frontend JS + another server-side language
Experience working with databases
Simple data structures: Tree, Queue, Stack, etc
Networking: TCP, HTTP/2, DNS
Node.js core topics: Event loop, I/O, streams, typed arrays, buffers, pipes, EventEmitter, sync/async APIs etc.

Plan

11 sections 1.5 - 3h each

Total: ~ 24h

Section 1: User service

Nest.js setting up
CRUD user operations
DI, IoC, Chain of responsibility, Factory, other patterns and techniques
REST API

Section 2: Databases

SQL vs NoSQL
Pulling Mongo image
Setting up Nest + mongo
Persisting users to DB

Section 3: CI

PR process
CI services overview
CI vs CD
GitHub Actions integration
CI/CD configurations

Section 4: Docker

Why
How
Docker-compose
Docker networks
Docker hub
Pushing Docker images to hub via CI/CD

Section 5: Caching

Overview
Redis
Nestjs + redis

Section 6: Chat service

WS vs HTTP2
Socket.IO
Writing the chat service

Section 7: Kubernetes

Quick intro
Services and discovery
Wrapping our current configuration to a K8S YAML
Scaling
High availability
Monitoring tools

Section 8: Gateway

API gateway,
Load balancing strategies
Introducing Traefik
Sticky sessions pros and cons

Section 9: Event streaming

MQs overview
Kafka internals
Adding kafka cluster to k8s via Helm
Nest.js integration with Kafka

Section 10: Security

HTTPS, local SSL cert, MiM attack
Authentication
Authorization
OAUTH2 vs JWT
Setting up a ForwardAuth Traefik middleware
Integrating with Facebook login

Section 11: Clouds

AWS/Azure/GCloud
Managed k8s services
Deploying chat to the AWS cloud - costing overview

User service
Nest.js/TS/Etc

Chat service
nodes

Public :443 HTTPS

OAuth 2 provider

OAuth interceptor

HTTP/REST

WS/Socket.IO

Users DB

Users cache
Messages cache

User disabled notification

Private Kubernetes cluster

HTTPS

Broker

Get user details on connection

Forward auth / HMAC signature headers validation

Expected app in the end of the training

The UI will be implemented behind the scene

Start course:

late January

Duration:

~ 7 weeks

Zoom sessions:

Mon, Wed, 18:00 – 20:00

Q&A

Closing registration:

December 28

Selection (interviewing)

Jan 4 - Jan 20

Inviting participants:

after January 20

Node JS training

By Vladimir Vyshko