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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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API Gateway Pattern with NestJS

In microservices architecture, one common design pattern for managing communication between multiple services is the API Gateway pattern. An API Gateway is a server...

tRPC vs REST vs GraphQL in NestJS

In modern web development, APIs are the backbone of communication between clients and servers. When building backend applications with NestJS, developers often face the...

Communication Between Services Using Message Brokers in NestJS

In a microservices architecture, the need for services to communicate asynchronously is crucial for building scalable, fault-tolerant, and loosely coupled systems. To achieve this,...

Building Microservices in NestJS (TCP, Redis, gRPC)

Microservices architecture is a popular pattern for designing scalable, flexible, and maintainable systems. NestJS, with its built-in support for multiple transport layers, makes it...

GraphQL Federation and Apollo Gateway in NestJS

As applications grow in complexity, microservices and modular architectures become essential. GraphQL Federation allows you to build a distributed GraphQL architecture where different services...

Performance Optimization with Dataloader in NestJS

In modern applications, performance is a critical factor, especially when dealing with complex databases and large datasets. One common performance issue arises when querying...

Handling Input Validation and Auth in GraphQL in NestJS

GraphQL allows for flexible and efficient data querying, but managing input validation and authentication within your GraphQL API requires specific strategies. NestJS provides powerful...

Resolvers, Queries, Mutations, and Subscriptions in NestJS

GraphQL enables you to interact with your data by defining a schema that specifies the types, queries, mutations, and subscriptions. The key component that...

Setting Up GraphQL with Code-First and Schema-First Approaches in NestJS

GraphQL is a query language for APIs that allows clients to request exactly the data they need, making it an efficient alternative to RESTful...

Working with Background Jobs using Bull and Redis in NestJS

Background jobs are crucial for offloading resource-intensive tasks, such as email sending, image processing, or data synchronization, from the main request-response cycle. Bull, a...

Using Event Emitters and Async Event Handling in NestJS

Event-driven architecture is a powerful design pattern that promotes loose coupling, scalability, and better organization of logic. In NestJS, you can leverage the built-in...

Redis Pub/Sub with WebSockets for Scalable Messaging in NestJS

As your real-time application grows, a single WebSocket server may not be able to handle all clients efficiently. In a distributed system where multiple...