Type-safe SQL queries with Kysely and PostgreSQL in NestJS

2023/08/07

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The article discusses how to use Kysely, a query builder, with PostgreSQL in a NestJS project to create type-safe SQL queries. While ORM libraries like Prisma and TypeORM can help developers avoid writing raw SQL queries, they often generate suboptimal queries. Kysely, on the other hand, integrates tightly with TypeScript and provides a set of functions to create SQL queries, ensuring type safety and preventing typos. The article walks through the process of integrating Kysely with PostgreSQL in a NestJS project, including setting up the database using Docker Compose, managing migrations, and using Kysely with NestJS. Developers looking for a more efficient and type-safe way to work with SQL queries in their NestJS projects can benefit from using Kysely and PostgreSQL.