NestJS Zero to Hero - Modern TypeScript Back-end Development

8h 44m 8s
English
Paid
May 18, 2023

NestJS is a Node.js back-end development framework built upon Express, leveraging the power of TypeScript. NestJS leverages the incredible popularity and robustness of JavaScript as a language and Node.js as a technology. It is inspired by common libraries and frameworks such as Angular, React and Vue which improve developer productivity and experience. Even considering the amount of superb libraries, helpers and tools that exist for server-side Node.js, none of them effectively solve the main problem - the architecture of an application.

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NestJS provides an out-of-the-box application architecture which allows developers and teams to create highly testable, scalable, loosely coupled and easily maintainable applications.

Recently, the NestJS framework is gaining extreme popularity due to its incredible features;

  • Leverages TypeScript - strongly typed language which is a super-set of JavaScript

  • Simple to use, easy to learn and easy to master

  • Powerful Command Line Interface (CLI) tool that boosts productivity and ease of development

  • Detailed, well-maintained documentation

  • Active codebase development and maintenance

  • Open-source (MIT license)

  • Supports dozens nest-specific modules that help you easily integrate with common technologies and concepts such as TypeORM, Mongoose, GraphQL, Logging, Validation, Caching, Websockets and much more

  • Easy of unit-testing applications

  • Made for Monoliths and Micro-services (entire section in the documentation regarding the Microservice type of a NestJS application, as well as techniques and recipes).

In this course I am going to guide you through the process of planning, developing and deploying a fully-featured back-end application, based on my experience developing and maintaining systems that support dozens of millions of concurrent users at scale.

Requirements:
  • Having a basic understanding of JavaScript and/or NodeJS
  • Having basic knowledge of TypeScript is recommended, but not required
Who this course is for:
  • Intermediate JavaScript developers who want to dive into back-end development
  • Any developers willing to apply TypeScript on the back-end
  • Developers eager to learn how to develop performant, secure and production-ready REST APIs following best practices
  • Developers who want to learn how to deploy their application to the cloud (Amazon Web Services)
  • Developers who want to follow building a practical, real-world application from zero to production

What you'll learn:

  • Becoming familiar with the NestJS framework and its components
  • Designing and developing REST APIs performing CRUD operations
  • Authentication and Authorization for back-end applications
  • Using TypeORM for database interaction
  • Security best practices, password hashing and storing sensitive information
  • Persisting data using a database
  • Deploying back-end applications at a production-ready state to Amazon Web Services
  • Writing clean, maintainable code in-line with industry standards
  • Utilising the NestJS Command Line Interface (CLI)
  • Using Postman for testing back-end services
  • Using pgAdmin as an interface tool to manage PostgreSQL databases
  • Implement efficient logging in a back-end application
  • Environment-based configuration management and environment variables
  • Implementing data validation and using Pipes
  • Guarding endpoints for authorized users using Guards
  • Modelling entities for the persistence layer
  • TypeScript best practices
  • Handling asynchronous operations using async-await
  • Using Data Transfer Objects (DTO)
  • Hands-on experience with JSON Web Tokens (JWT)
  • Unit testing NestJS applications
  • Using GraphQL with NestJS
  • Database persistence with MongoDB

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# Title Duration
1 Welcome to the course! 01:12
2 Installing the NestJS CLI 00:58
3 (Optional) Installing VSCode and Extensions 02:56
4 Project Overview 05:18
5 Creating our project via the NestJS CLI 02:05
6 NestJS Project Structure 06:37
7 Introduction to NestJS Modules 02:55
8 Creating a Tasks Module 03:33
9 Introduction to NestJS Controllers 03:47
10 Creating at Tasks Controller 03:38
11 Introduction to NestJS Providers and Services 05:04
12 Creating a Tasks Service 05:55
13 Feature: Getting All Tasks 07:31
14 Creating a Postman Collection 01:44
15 Defining a Task Model 05:02
16 Feature: Creating a Task (Part 1 - Controller) 05:00
17 Feature: Creating a Task (Part 2 - Service) 06:37
18 Intro to Data Transfer Objects (DTO) 05:37
19 Implementing CreateTaskDto 04:59
20 Feature: Getting a Task by ID 05:44
21 Challenge: Deleting a Task 00:53
22 Solution: Deleting a Task 04:24
23 Challenge: Update Task Status 01:20
24 Solution: Update Task Status 05:28
25 Feature: Searching and Filtering 08:50
26 Introduction to NestJS Pipes 04:15
27 ValidationPipe: Creating a Task 04:32
28 Error Handling: Getting a non-existing Task 04:17
29 Error Handling: Deleting a non-existing Task 01:10
30 Validation: Update Task Status 03:28
31 Challenge: Validating Task Filtering and Search 02:43
32 Introduction to Persistence 00:31
33 Running PostgreSQL via Docker 04:03
34 Setting up pgAdmin 01:46
35 Creating a Database using pgAdmin 00:55
36 Introduction to TypeORM 02:58
37 Setting up a Database Connection 04:30
38 Creating a Task Entity 03:52
39 Active Record VS Data Mapper Patterns 03:41
40 Creating a Tasks Repository 03:34
41 Refactoring for Tasks Service 03:45
42 Persistence: Getting a Task by ID 08:34
43 Persistence: Creating a Task 07:32
44 (Challenge) Persistence: Deleting a Task 01:23
45 (Solution) Persistence: Deleting a Task 04:59
46 Persistence: Update Task Status 02:41
47 Small Change Needed 01:41
48 Persistence: Getting All Tasks 12:23
49 Intro to Authentication and Authorization 01:13
50 Setting up AuthModule, User Entity and User Repository 05:06
51 Feature: Signing Up 08:27
52 Validation: Credentials and Password Strength 04:13
53 Error Handling: Username Conflicts 06:43
54 Securely Storing Passwords 07:23
55 Password Hashing With Bcrypt 04:26
56 Feature: Signing In 04:43
57 Intro to JSON Web Tokens (JWT) 05:55
58 Setting up the JWT Module and Passport.js 03:35
59 Signing a JWT Token on Sign In (Authentication) 07:09
60 Implementing JWT Validation 11:39
61 Custom @GetUser Decorator 03:15
62 Guarding the Tasks Routes 02:01
63 Tasks and Users - Database Relation 03:59
64 Make Users Own Tasks 04:37
65 Serialize User Data 03:40
66 Restricting Getting All Tasks 03:31
67 BUG FIX: Getting All Tasks 02:35
68 Restricting Getting a Task By ID 03:51
69 Restricting Status Updates 00:51
70 Restricting Deleting A Task 01:24
71 THANK YOU! (+ Promotion) 01:34
72 Introduction to Logging 02:54
73 Implementing Logs in our NestJS app 14:55
74 Introduction to Configuration 02:11
75 Quick Intro to Environment Variables 03:51
76 Setting up ConfigModule 09:19
77 TypeORM Configuration 09:38
78 Config Schema Validation 06:39
79 JWT Secret Configuration 04:08
80 Front-end Application 05:36
81 Signing up to Heroku 01:07
82 Creating a Heroku Application 01:00
83 Installing the the Heroku CLI 01:12
84 Postgres on Heroku 03:00
85 Changes in our NestJS App 05:12
86 Deploying NestJS to Heroku 09:49
87 Deploying Front-end to GitHub Pages 08:21
88 Unit Testing Crash Course: Basics 01:47
89 Unit Testing Crash Course: First Tests 06:39
90 IMPORTANT: Fixing import paths 01:37
91 Testing TasksService - Part 1 18:44
92 Testing TasksService - Part 2 07:30
93 GraphQL + MongoDB: Section Introduction 01:06
94 Project Overview: School Management 02:39
95 Robo 3T - Connecting to the MongoDB Database 01:15
96 Project setup 02:05
97 Ensure NestJS 7 Installation 00:56
98 Installing GraphQL Dependencies 03:03
99 Creating the Lesson Module 01:27
100 Defining the Lesson GraphQL Type 03:14
101 Creating the Lesson Resolver 04:04
102 Using the GraphQL Playground 03:45
103 Persistence: TypeORM, MongoDB and our Lesson Entity 06:35
104 LessonService and createLesson method 08:06
105 Create Lesson GraphQL Mutation 05:02
106 getLesson GraphQL Query with MongoDB 03:41
107 Validation: Create Lesson Input 07:16
108 Challenge: Get All Lessons GraphQL Query 04:08
109 Creating the Student Module 01:45
110 Challenge: Defining the Student Entity 02:54
111 Challenge: Create Student Mutation 10:29
112 Challenge: Get All Students GraphQL Query 02:38
113 Challenge: Get Student by ID Query 02:45
114 Assign Students To Lesson GraphQL Mutation 10:27
115 Improvement: Assign Students Upon Lesson Creation 03:15
116 Resolve "students" Field in Lesson 08:14

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