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NestJS Best Practices

NestJS best practices wo recommended patterns, conventions, aur guidelines hain jo NestJS…

Overview
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NestJS Best Practices — Quick Facts

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Field: Detail

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Topic: NestJS Best Practices

Category: Software Engineering / Best…

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Framework: NestJS (Node.js + TypeScript)

Topic 1
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Infobox

📚 | Field | Detail | |---|---| | Topic | NestJS Best Practices | | Category | Software…
Topic 2
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Best Practice Categories

💡 | Category | Key Principle | Priority | |---|---|---| | Architecture | Thin controllers,…
Topic 3
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Architecture Best Practices

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Controller sirf request receive…

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Controller me database calls,…

Controller ka kaam: request parse,…

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Saari business logic services me.…

Topic 4

Code Organization

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Har feature ek folder me:…

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Shared utilities ek common/ ya…

Avoid layer-based structure (all…

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Files: kebab-case —…

Topic 5
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Validation aur DTOs

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ValidationPipe globally enable…

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DTOs me class-validator decorators…

class-transformer se data…

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ValidationPipe me whitelist: true…

Topic 6
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Error Handling

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Application-wide exception filter…

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Standard error envelope: {…

Never expose stack traces ya…

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Business-specific exceptions…

Topic 7
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Security Best Practices

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HTTP security headers…

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NestJS me helmet middleware use…

Strict CORS configuration. Sirf…

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Wildcard (*) production me avoid.…

Topic 8
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Testing Best Practices

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Har service ka unit test.…

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NestJS TestingModule use karo —…

Business logic thoroughly covered.

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Module level testing. Real…

Topic 9
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Performance Best Practices

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Frequently accessed data cache…

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Cache invalidation strategy clear…

Cache at service level, not…

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Large modules lazy load karo.…

Topic 10
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Configuration Management

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Development, staging, production —…

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@nestjs/config with .env files.…

Never hardcode URLs, credentials,…

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Application startup par config…

Topic 11
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Development Workflow

🎯 `mermaid flowchart TD A[New Feature Request] --> B[Create Feature Module] B --> C[Define…
Topic 12
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Anti-Patterns (Avoid These)

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Controller me agar 50 lines ka…

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"Abhi testing me hoon, baad me…

Database URL, API keys, feature…

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AppModule me sab kuch directly…

Topic 13
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Challenges

🔑 1. Discipline Required — Best practices follow karna discipline maangta hai. Shortcuts…
Topic 14

Benefits

1. Maintainability — Consistent structure, clean code, clear boundaries — 6 months baad…
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Glossary

🌟 | Term | Meaning | |---|---| | DTO | Data Transfer Object — request/response data shape…
Topic 16
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Disclaimer

🚀 Yeh article Aliens Wiki ke liye likha gaya hai, Hinglish (Roman) me. Yeh informational…
Diagram
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Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

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NestJS

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NestJS Architecture

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Clean Code

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SOLID Principles

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Unit Testing

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REST API

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

NestJS Best Practices ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

NestJS Best Practices ka 'Topic' kya hai?

Complete! 🎉
COMPLETE

NestJS Best Practices Complete!

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NestJS Best Practices Complete

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