Databases

Node.js TypeORM

Using TypeORM

Node.js TypeORM supports multiple databases with TypeScript integration.

Introduction to TypeORM

TypeORM is an Object-Relational Mapper (ORM) for Node.js that works with TypeScript and supports multiple databases, such as MySQL, PostgreSQL, SQLite, and more. It allows developers to interact with databases using TypeScript classes and decorators, providing a more intuitive and type-safe way to manage data.

Setting Up TypeORM in a Node.js Project

  • Initialize a Node.js project:
  • Install TypeORM and SQLite:

Creating an Entity

Create a new file user.ts and define the User entity:

Connecting to the Database

Here's an example configuration for SQLite:

Using Repositories to Manage Data

TypeORM uses repositories to manage database operations. Here's how you can use repositories to save and retrieve data:

Conclusion

TypeORM offers a robust solution for managing database interactions in Node.js applications. By leveraging TypeScript and decorators, it provides a type-safe and scalable approach for developers. This guide covered the basics of setting up TypeORM, creating entities, and performing CRUD operations using repositories.

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