Being able to easily connect your API to a database and easily maintain it is one of the most sought-after skills as a Software Engineer. Having knowledge of ORMs, database connections, Rest API development, and creating services increases your worth as an engineer. In this course, you will learn the basics of TypeORM with NestJS. You will use Typescript to build database entities that map to tables in the database and manipulate data for your NestJS Rest API. This course is for web developers looking to gain more knowledge in Node. JS, specifically in frameworks like NestJS API development. This course covers ORMs, NestJS, API, Typescript, Services, One-to-One, One-to-Many, and Many-to-Many Relationships, Query Builder, Active Record, Data Mapper, SQLAt the end of this course, the student should be familiar with being able to create any type of database relationship within a NestJS application and outputting it to JSON for consumption. Real-world examples are used in order to get the student familiar with modifying entities within the database. Students will be expected to know how database connection strings work, port numbers, and how to set up a database locally before taking the course. Tools used include PostgreSQL, Visual Studio Code, Insomnia, Docker ( not required )