MikroORM

TypeScript ORM for Node.js based on Data Mapper, Unit of Work, and Identity Map patterns. Version 6.1.4-rc-sti-changes-1 supports MongoDB, MySQL, MariaDB, PostgreSQL, and SQLite databases. Heavily inspired by Doctrine and Hibernate, it provides implicit transactions via flush(), change-set based persistence, and a rich set of features like migrations, embedded entities, and query building. It ships with TypeScript definitions and requires Node >= 18.12.0. Key differentiators: full TypeScript support, no decorator metadata reflection needed, and a clean, opinionated API.