Setting Up the Project
Step 1: Initialize the Project
Create a new directory for your project and initialize a new Node.js project:
mkdir express-typescript-api
cd express-typescript-api
npm init -y
Step 2: Install Dependencies
Install Express and its types, as well as TypeScript and necessary development dependencies:
npm install express
npm install @types/express --save-dev
npm install typescript ts-node-dev @types/node --save-dev
Step 3: Configure TypeScript
Create a tsconfig.json file to configure the TypeScript compiler
{
"compilerOptions": {
"target": "ES6",
"module": "commonjs",
"strict": true,
"esModuleInterop": true,
"outDir": "./dist",
"rootDir": "./src"
},
"include": ["src/**/*"],
"exclude": ["node_modules"]
}
How to use TypeScript to build Node.js API with Express ?
TypeScript is a powerful superset of JavaScript that adds static typing and other features, making it easier to build and maintain large-scale applications. When combined with Node.js and Express, TypeScript can enhance your development experience by providing type safety and better tooling. This guide will walk you through building a Node.js API using Express and TypeScript.
Contact Us