Express Typescript

screenshot of Express Typescript

Express Typescript

Source code for the Building REST API with Express, TypeScript blog post series


The express-typescript is a source code repository for building a REST API with Express and TypeScript. It corresponds to a blog post series that covers various aspects of setting up a REST API using Express, TypeScript, Swagger, Docker, PostgreSQL, Typeorm, Jest for unit testing, and building a production server and Docker image.


  • Express and TypeScript: Utilizes Express as the web framework and TypeScript for writing scalable code.
  • Swagger Integration: Includes Swagger for API documentation and testing.
  • Docker Setup: Demonstrates setting up the project in Docker containers.
  • PostgreSQL and Typeorm: Integrates PostgreSQL as the database with Typeorm for ORM operations.
  • Jest and Unit Testing: Implements Jest for unit testing to ensure the reliability of the code.


  1. Clone the repo:
git clone <repository_url>
  1. Install dependencies:
cd express-typescript
npm install
  1. Build the production server:
npm run build
  1. Run the server:
npm start
  1. Build Docker image locally:
docker build -t <image_name> .
  1. Run tests:
npm run test


The express-typescript repository provides a comprehensive guide and source code for creating a REST API using Express and TypeScript. With features like Swagger integration, Docker setup, PostgreSQL and Typeorm support, Jest for unit testing, and detailed installation guidelines, developers can easily follow along and set up a robust REST API environment.


Express.js is a simple Node.js framework for single, multi-page, and hybrid web applications.


TypeScript is a superset of JavaScript, providing optional static typing, classes, interfaces, and other features that help developers write more maintainable and scalable code. TypeScript's static typing system can catch errors at compile-time, making it easier to build and maintain large applications.