Elvis Miranda

Elvis Miranda


TypeScript Setup With Node & Express

In this video we will setup a Node/Express/TypeScript/Nodemon environment with TS-Node.

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TypeScript Setup With Node & Express
Suparnar Taina

Suparnar Taina


Let's start the setup for TypeScript with Node.js and Express


In this article, we’ll learn how to handle node & express in Typescript.

About Node.js

Node.js is an open-source, cross-platform run-time environment used for developing fast and scalable real-time applications with a persistent connection between the user’s browser and server. It executes server-side JavaScript code.

About Express.js

Express.js is simply a web application framework of Node.js. It helps in developing node-based web applications rapidly. Let’s see some of the core features of Ethe xpress framework,

  • Used in hybrid, single and multi-page web application development.
  • Allows  usto setup middle wares to respond to HTTP requests.
  • Helps in rendering dynamic HTML pages by passing arguments to templates.
  • Defines a routing table to perform different actions based on HTTP method and URL.


TypeScript is a language for application-scale Javascript and can be considered as a superset of JavaScript. It adds optional types to Javascript that support large scale JS applications, on any browser and OS. It can be thought of as JavaScript with additional features such as strong static typing, compilation and object-oriented programming etc.

Steps to follow.

Let’s start the setup for TypeScript with Node and Express.

Step 1 -_ Folder creation and Depen_****dency Installation

Create a new folder for our project (after Node and Npm installation):


Install the dependencies using NPM

npm install typescript

tsc –init

This is image title

Step 2** - Configuring TypeScript**

  • After the installation, a few configurations have to be done for changing JS to TS.
  • In the tsconfig.json file, modify the below configs.

“target”: “es5” -> “target”: “es6”,
“outDir”: “./build”,
“rootDir”: “./src”,
“moduleResolution”: “node”,

Note The tsconfig.json file is located at the root directory of any TypeScript project. The tsconfig.json file has the details of the root files and the compiler options required to compile the project.

This is image title

Step 3

Initialize it as an Npm project

npm init --y

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Step 4

To install the _Express _framework, use the below commands.

npm install express
npm i -D typescript ts-node nodemon @types/node @types/express

Step **5 - **Setting Up The Folder Structure

To start with the TS application, create a folder structure as below:


_ src_ folder - In the root of our project directory.

app.ts file - Inside src folder.

In the terminal, execute the below command:

cd src
touch app.ts

At this point, we should have a folder structure that looks like this,

This is image title

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Now, go to the localhost in the browser. The below result appears which indicates successful execution.

This is image title

Thank you for reading!

#typescript #node-js #express

Node.js Express EJS Layouts and Partials Tutorial

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#partials #ejs #node.js #node #express #node.js express ejs layouts and partials tutorial

Alec  Nikolaus

Alec Nikolaus


Setting up TypeScript and Node with Express

Hello, my friends and fellow developers, in this video, I have talked about setting up TypeScript and NodeJS with Express.

#typescript #node #express #nodejs #javascript

How to set up TypeScript with Node and Express

Learn how to set up TypeScript with Node and Express in this video.

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🔥 Timestamps Start 🔥

0:00 - Introduction
1:45 - Setting up the node environment
7:39 - Creating NPM Scripts
9:12 - Configuring TypeScript with tsconfig.json

🔥 Timestamps End 🔥


#node #typescript #javascript #express #backend

Alfie Mellor

Alfie Mellor


Using TypeScript with Node.js and Express

Learn how to set up TypeScript in an Express.js app. This post describes a beginner-friendly way to set up TypeScript in an Express.js app and understand the basic constraints that come with it.

Ease of development is great when you are building a server written in JavaScript using Node.js and Express. What happens when this application server scales or you are working in a team of developers all across the world? TypeScript can help.

In this post, I am not going to talk about whether you should use TypeScript or not. This post describes a beginner-friendly way to set up TypeScript in an Express.js app and understand the basic constraints that come with it.


To take full advantage of this tutorial, please make sure you have the following installed in your local development environment:

  • Node.js version >= 12.x.x installed
  • Access to one package manager such as npm or yarn
  • Basic knowledge of Node.js and Express

Create a minimal server with Express

Start by creating a new directory where you keep your side projects in your local development environment. Inside that directory, use npm’s initializer command to create a package.json file:

media server
cd server/
npm init --yes

The --yes flag uses the default settings when initializing a package.json from npm config you might have set up.

The package.json file created might look something like this:

  "name": "express-ts-example",
  "version": "0.0.1",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  "keywords": [],
  "author": "Aman Mittal (https://amanhimself.dev)",
  "license": "MIT"

After the initializing step, let us add an express package. From the terminal window, run the command:

yarn add express@4.17.1

Next, create a new file called index.js at the root of the project with the following code to trigger a minimal server:

const express = require('express');
const app = express();
const PORT = 8000;
app.get('/', (req,res) => res.send('Express + TypeScript Server'));
app.listen(PORT, () => {
  console.log(`⚡️[server]: Server is running at https://localhost:${PORT}`);

Go back to the terminal and trigger the common node index.js to start the server.

localhost displaying Express + TypeScript server

The Express server is now up and running.

Add TypeScript

Let’s add two libraries to the development server as devDependencies.

  • typescript is a core library that helps to compile the TypeScript code to valid JavaScript
  • ts-node is a utility library that helps to run a development server written using TypeScript directly from the terminal

To install them, from a terminal window run the following command:

yarn add -D typescript ts-node

The -D flag is also known as --dev flag and is a specification for the package manager to install these libraries as devDependencies.

Once these libraries are installed, go to the package.json file and see a new devDependencies object:

"devDependencies": {
  "ts-node": "8.10.2",
  "typescript": "3.9.5"

Next, create a tsconfig.json file at the root of the development server project. This file allows you to customize TypeScript configuration and add other configurations to compile the TypeScript project:

  "compilerOptions": {
    "target": "es6",
    "module": "commonjs",
    "rootDir": "./",
    "outDir": "./build",
    "esModuleInterop": true,
    "strict": true

The compilerOptions is a mandatory field that needs to be specified. The options used in the config above are:

  • target allows us to specify the target JavaScript version that compiler will output
  • module allows us to use a module manager in the compiled JavaScript code. The commonjs is supported and is a standard in Node.js
  • rootDir is an option that specifies where the TypeScript files are located inside the Node.js project
  • outDir specifies where the output of the compiled is going to be located
  • esModuleInterop allows us to compile ES6 modules to commonjs modules
  • strict is an option that enables strict type-checking options

There might be other configuration options that you can add on for the TypeScript compiler but these are the basic configuration options specified that can help you to get started.

#typescript #node #express #javascript #developer