Express api example using TypeORM with JavaScript Clone repository Rename ormconfig.template.json to ormconfig.json and fill with your PostgreSQL database info. Something like: { "type": "postgres", "host": "localhost", "port": 5432, "username": "postgres", "password": "postgres", "database": "test", "entities": ["src/entity/*.js"], "logging": true, "synchronize": true } I'm using PostgreSQL, if you want to use another DB just change it and replace package. Run npm i Run node app.js to run simple example Point your browser to http://localhost:3000 to test http://localhost:3000/filldb to insert data into DB http://localhost:3000/api/categories to list categories