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Core Architecture

Module Controller Provider service Dependency injection Custom provider token Global module Lifecycle hooks Configuration module

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TypeORM repository Prisma service integration Mongoose model Transactions service pattern EventEmitter WebSocket gateway Microservice message pattern Cron scheduling

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NestJS / Data and Messaging

Microservice message pattern

Learn Microservice message pattern in NestJS through a focused explanation, a topic-specific example, an engineering warning, and a mastery check.

12 min read • Intermediate

nestjs-023.ts

typescript

@MessagePattern("sum")
sum(data:number[]){ return data.reduce((a,b)=>a+b,0); }

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Microservice message pattern Mastery Check →

WebSocket gateway

Cron scheduling