Nest JS

Understanding Population in NestJS with MongoDB

  • By Jeff Githae Apr 04, 2025
nestjs population

When working with MongoDB and NestJS, relationships between collections are often necessary. MongoDB uses references (ObjectIds) to link documents, and Mongoose provides population to resolve these references. In this blog, we will explore different scenarios of population in NestJS with examples.

Setting Up NestJS with MongoDB

Before diving into population, let’s set up a NestJS project with MongoDB.

  1. Install NestJS CLI:

    npm i -g @nestjs/cli

  2. Create a new project:

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