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Version: 3.6

Entity Generator

To generate entities from existing database schema, you can use EntityGenerator helper.

You can use it via CLI:

npx mikro-orm generate-entities --dump  # Dumps all generated entities
npx mikro-orm generate-entities --save --path=./my-entities # Saves entities into given directory

Or you can create simple script where you initialize MikroORM like this:

import { MikroORM } from 'mikro-orm';

(async () => {
const orm = await MikroORM.init({
dbName: 'your-db-name',
// ...
const generator = orm.getEntityGenerator();
const dump = await generator.generate({
save: true,
baseDir: process.cwd() + '/my-entities',
await orm.close(true);

Then run this script via ts-node (or compile it to plain JS and use node):

$ ts-node generate-entities

Current limitations

  • many to many relations are not supported, pivot table will be represented as separate entity
  • in mysql, tinyint columns will be defined as boolean properties