Implementing CRUD Operations with the TypeORM Repository
Explore how to implement CRUD operations in a NestJS application using the TypeORM repository pattern. Learn to inject repositories, create and update entities, find records by ID, and handle deletions with error handling. This lesson equips you to manage data persistence efficiently with TypeORM in your backend applications.
In the previous lesson, we set up our database, paving the way for the next step. In this lesson, we’ll harness the power of the TypeORM repository to interact seamlessly with our database.
What is a repository pattern?
Before using the TypeORM repository in our application, let’s get a quick overview of a repository pattern.
The repository pattern serves as a software design paradigm that enables the decoupling of an application from the underlying data storage, promoting an abstraction layer for their interaction. It centralizes the management of domain objects by encapsulating the logic for data storage operations within a repository component.
In our context, we’ll utilize the TypeORM repository, a built-in implementation aligned with the repository pattern. TypeORM repository simplifies common CRUD operations, such as creating, reading, updating, and deleting entities, to interact with our data storage.