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Writing Maintainable, Scalable, and Readable TypeScript Code

Table of Contents Introduction to Code Maintainability Principles of Maintainable TypeScript Code Key Practices for Writing Scalable TypeScript Code Enhancing Readability in TypeScript Code Structuring TypeScript Projects for Scalability Advanced...

Monorepos with TypeScript: Nx, Turborepo Basics

Table of Contents What is a Monorepo? Benefits of Monorepos Overview of Nx and Turborepo What is Nx? What is Turborepo? Setting Up a Monorepo with Nx Setting Up a Monorepo...

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Linting and Formatting: ESLint + Prettier for TypeScript

Table of Contents Introduction Why Linting and Formatting Are Critical What is ESLint? What is Prettier? How ESLint and Prettier Work Together Setting Up ESLint in a TypeScript Project Installing Dependencies Configuring...

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Clean Code Principles and Best Practices for TypeScript

Table of Contents Introduction Why Clean Code Matters Core Clean Code Principles Meaningful Names Small, Focused Functions Single Responsibility Principle (SRP) Avoiding Side Effects Favor Composition Over Inheritance DRY (Don’t Repeat Yourself) KISS (Keep...

Event-Driven Programming with Typed Events in TypeScript

Table of Contents Introduction What is Event-Driven Programming (EDP)? Why Typed Events Matter Building a Simple Event System in TypeScript Defining Typed Event Interfaces Creating an Event Emitter Class Subscribing, Emitting,...

Domain-Driven Design (DDD) Basics in TypeScript

Table of Contents Introduction What is Domain-Driven Design (DDD)? Core Concepts of DDD Entities Value Objects Aggregates Repositories Services Structuring a DDD Project in TypeScript Example: Building a Simple DDD Module in TypeScript Best Practices...

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DTOs and Validation with class-validator in NestJS

In modern web development, validating incoming data is crucial for ensuring that your application behaves as expected and maintains data integrity. DTOs (Data Transfer...

Working with Environment Variables and Validation

Table of Contents Introduction Overview of environment variables and their importance in modern applications Why validation is crucial for ensuring the integrity of input data Working with Environment...

Configuration Management with @nestjs/config

Table of Contents Introduction to Configuration in NestJS Why Use @nestjs/config? Installing and Setting Up @nestjs/config Using .env Files for Environment Variables Accessing Config Values in Services Configuration Namespaces and...

Services and Dependency Injection in NestJS

Table of Contents Introduction to Services Why Use Services? Creating Your First Service Understanding Dependency Injection in NestJS Service Scope: Default, Transient, and Request-Scoped Injecting Services into Controllers Using Interfaces for...

Controllers and Routes – Building the API Layer in NestJS

Table of Contents Introduction to Controllers Role of Controllers in the Request-Response Cycle Creating a Controller with @Controller() HTTP Methods: @Get(), @Post(), @Put(), @Delete(), etc. Route Parameters and Dynamic...

Understanding Modules – NestJS Architecture Basics

Table of Contents What Are Modules in NestJS? Why Modules Matter: Core to Nest’s Architecture Exploring the @Module() Decorator Imports, Exports, Providers, and Controllers Shared Modules and Feature Modules Best...

Setting Up a NestJS Project with CLI: First App and File Structure Explained

Table of Contents Prerequisites Installing NestJS CLI Creating a New Project Understanding the Project Structure Running Your First NestJS Server Exploring Core Files: main.ts, AppModule, AppController, and AppService Summary and Next...

What is NestJS? Why Use It Over Express?

Table of Contents Introduction to NestJS The Problem with Traditional Node.js Frameworks What Makes NestJS Different? Benefits of Using NestJS When and Why to Prefer NestJS over Express Real-World Use...

Building Microservices and Modular Fullstack Apps with Next.js

Table of Contents Introduction Why Modular and Microservice Architectures? Monorepo Setup with Turborepo Structuring Multiple Apps and Shared Packages Decoupling Frontend and Backend Logic Using tRPC for Type-Safe APIs GraphQL as...

Internationalization (i18n) in Next.js with App Router

Table of Contents Introduction Why Internationalization Matters Built-in i18n Support in Next.js Step-by-Step Setup for i18n in App Router Routing and Locale Detection Handling Translations with next-intl Dynamic Locale Loading Nested Layouts...

Building Scalable APIs with Next.js: REST vs GraphQL in App Router

Table of Contents Introduction API Architectures: REST vs GraphQL Where APIs Live in Next.js App Router Understanding Server vs Edge Runtime for APIs Structuring REST APIs in Next.js Creating Typed...

Working with Databases in Next.js: Connecting PostgreSQL, MySQL, and MongoDB

Table of Contents Introduction Why Databases Matter in Full-Stack React/Next.js Supported Databases: PostgreSQL, MySQL, MongoDB Choosing the Right ORM: Prisma vs Drizzle vs Raw Queries Setting Up Environment Variables...