JobCannon
ټول مهارتونه

NestJS Enterprise

⬢ درجه 2تخنیکي
لوړ
د معاش اغېز
3 میاشتې
د زده کړې وخت
سخت
سختوالی
11
مسلکونه
په یوه نظر

NestJS is a TypeScript framework for building backend APIs. Provides: dependency injection, modular architecture, built-in validation, error handling, GraphQL/REST support. Used by 10k+ teams. Mastery takes 6-8 weeks. Teams using NestJS report 40-60% faster API development vs. Express and better code organization. Salaries: NestJS specialists earn 20-30% premium. Scarcity is moderate; many JS developers know Express, fewer master NestJS patterns (modules, guards, interceptors).

NestJS Enterprise څه شی دی

NestJS is a progressive Node.js framework for building efficient, scalable server-side applications. Built on Express, NestJS adds structure: modules (feature grouping), dependency injection (for testability), decorators (for metadata), and middleware/guards/interceptors (request handling pipeline). NestJS enforces architectural patterns (clean architecture, SOLID principles) that prevent chaos as apps grow. You organize code by feature (users module, orders module), not by role (all controllers in one folder, all services in another).

🔧 وسیلې او ایکوسیستم
NestJS frameworkTypeScriptTypeORM or PrismaPostgreSQLGraphQLJest testingDockerNode.js

📋 مخکې له دې چې تاسو پیل کړئ

Typescript Advanced

💰 د سیمې له مخې معاش

سیمهجونیرمنځنیسېنیر
USA$85k$140k$220k
UK£52k£85k£133k
EU€58k€95k€148k
CANADAC$90kC$150kC$235k

⚖ سره پرتله کړئ

Typescript Advanced

❓ ډېرې پوښتل شوې پوښتنې

Should I use NestJS or Express?
Express: minimal, lightweight, flexible. NestJS: opinionated, structured, less boilerplate. Express if building simple API; NestJS if building enterprise app (many features, many engineers). NestJS reduces bugs via types and structure. Express is faster to learn but slower to scale.
What's dependency injection and why does NestJS use it?
DI: instead of creating dependencies inside a class, you pass them in. Example: class UserService depends on Database. DI injects Database at runtime. Benefits: testable (swap real DB for mock), loose coupling, reusable. NestJS DI automatic via decorators. Less boilerplate than manual DI.
Can I use NestJS for GraphQL?
Yes, built-in support. NestJS has @nestjs/graphql package. Define schema as TypeScript classes, NestJS generates GraphQL schema. REST + GraphQL simultaneously. Hybrid gives flexibility (REST for public API, GraphQL for mobile).
What's the difference between Guards, Interceptors, and Middleware?
Middleware: runs early in request (auth checks, logging). Guards: endpoint-specific (check permissions before handler). Interceptors: wrap handler (transform response, catch errors). Order: Middleware → Guard → Interceptor → Handler → Interceptor return → Middleware return.
How do I structure a large NestJS app?
By feature: each feature = module with controller, service, entity, repository. Features: users, orders, payments = separate modules. Modules import each other. NestJS prevents circular dependencies, forces clean architecture. Result: scalable to 100+ features.

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