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description=TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns.;

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Text of the page (random words):
mikroorm typescript orm for node js based on data mapper unit of work and identity map patterns mikroorm skip to main content ️ if you like mikroorm give it a star on github and consider sponsoring its development ️ 7 1 next 7 1 7 0 6 6 5 9 docs api blog changelog latest v7 1 7 discord github twitter search typescript orm built on proven patterns based on data mapper unit of work and identity map patterns build type safe performant database layers with minimal boilerplate npm install mikro orm postgresql get started github sponsor why mikroorm a modern orm that gets out of your way and lets you focus on your domain unit of work identity map automatic change tracking and batched queries all changes are wrapped in implicit transactions when you call em flush fully type safe type safe queries populate hints and entity operations even string based filters and relations are validated at compile time multiple entity definition styles choose your style defineentity with full type inference decorators or entityschema no lock in to a single approach filters soft delete global and entity level query filters for multi tenancy soft deletes and more applied automatically to every query sql nosql first class support for mongodb postgresql mysql mariadb sqlite libsql ms sql server and more schema management prototype with schemagenerator version with migrations or introspect existing databases with entitygenerator smart populate loading type checked populate hints with auto joined loading strategies control exactly what gets loaded and how events lifecycle powerful event system with entity lifecycle hooks onflush events and metadata aware querybuilder seeding factories seed your database with realistic test data using entity factories define reusable blueprints and generate data for development and testing first class kysely integration use kysely s type safe sql query builder directly with your mikroorm entities full autocompletion for table and column names unit of work identity map automatic change tracking and batched queries all changes are wrapped in implicit transactions when you call em flush fully type safe type safe queries populate hints and entity operations even string based filters and relations are validated at compile time multiple entity definition styles choose your style defineentity with full type inference decorators or entityschema no lock in to a single approach filters soft delete global and entity level query filters for multi tenancy soft deletes and more applied automatically to every query sql nosql first class support for mongodb postgresql mysql mariadb sqlite libsql ms sql server and more schema management prototype with schemagenerator version with migrations or introspect existing databases with entitygenerator smart populate loading type checked populate hints with auto joined loading strategies control exactly what gets loaded and how events lifecycle powerful event system with entity lifecycle hooks onflush events and metadata aware querybuilder seeding factories seed your database with realistic test data using entity factories define reusable blueprints and generate data for development and testing first class kysely integration use kysely s type safe sql query builder directly with your mikroorm entities full autocompletion for table and column names unit of work identity map automatic change tracking and batched queries all changes are wrapped in implicit transactions when you call em flush fully type safe type safe queries populate hints and entity operations even string based filters and relations are validated at compile time multiple entity definition styles choose your style defineentity with full type inference decorators or entityschema no lock in to a single approach filters soft delete global and entity level query filters for multi tenancy soft deletes and more applied automatically to every query sql nosql first class support for mongodb postgresql mysql mariadb sqlite libsql ms sql server and more schema management prototype with schemagenerator version with migrations or introspect existing databases with entitygenerator smart populate loading type checked populate hints with auto joined loading strategies control exactly what gets loaded and how events lifecycle powerful event system with entity lifecycle hooks onflush events and metadata aware querybuilder seeding factories seed your database with realistic test data using entity factories define reusable blueprints and generate data for development and testing first class kysely integration use kysely s type safe sql query builder directly with your mikroorm entities full autocompletion for table and column names supported databases one api multiple database backends postgresql mysql mariadb sqlite mongodb ms sql libsql cockroachdb oracle turso cloudflare d1 pglite define query done define entities your way query with a clean type safe api defineentity reflect metadata ts morph entityschema import defineentity inferentity p from mikro orm core export const book defineentity name book properties id p number primary title p string author p manytoone author ref tags p manytomany tag export type ibook inferentity typeof book entitymanager querybuilder kysely loaded type fully type safe queries const books await em find book author name tolkien populate author profile type checked orderby title asc all changes are tracked automatically books 0 title updated title em remove books 1 single flush one transaction batched queries await em flush join the community star on github sponsor join discord docs quick start getting started migration from v6 to v7 version 6 6 docs community discord slack stack overflow social blog twitter github github sponsors copyright 2018 2026 martin adámek built with docusaurus