Alfie Mellor

Alfie Mellor

1594996008

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.

Prerequisites

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

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Using TypeScript with Node.js and Express
Aria Barnes

Aria Barnes

1622719015

Why use Node.js for Web Development? Benefits and Examples of Apps

Front-end web development has been overwhelmed by JavaScript highlights for quite a long time. Google, Facebook, Wikipedia, and most of all online pages use JS for customer side activities. As of late, it additionally made a shift to cross-platform mobile development as a main technology in React Native, Nativescript, Apache Cordova, and other crossover devices. 

Throughout the most recent couple of years, Node.js moved to backend development as well. Designers need to utilize a similar tech stack for the whole web project without learning another language for server-side development. Node.js is a device that adjusts JS usefulness and syntax to the backend. 

What is Node.js? 

Node.js isn’t a language, or library, or system. It’s a runtime situation: commonly JavaScript needs a program to work, however Node.js makes appropriate settings for JS to run outside of the program. It’s based on a JavaScript V8 motor that can run in Chrome, different programs, or independently. 

The extent of V8 is to change JS program situated code into machine code — so JS turns into a broadly useful language and can be perceived by servers. This is one of the advantages of utilizing Node.js in web application development: it expands the usefulness of JavaScript, permitting designers to coordinate the language with APIs, different languages, and outside libraries.

What Are the Advantages of Node.js Web Application Development? 

Of late, organizations have been effectively changing from their backend tech stacks to Node.js. LinkedIn picked Node.js over Ruby on Rails since it took care of expanding responsibility better and decreased the quantity of servers by multiple times. PayPal and Netflix did something comparative, just they had a goal to change their design to microservices. We should investigate the motivations to pick Node.JS for web application development and when we are planning to hire node js developers. 

Amazing Tech Stack for Web Development 

The principal thing that makes Node.js a go-to environment for web development is its JavaScript legacy. It’s the most well known language right now with a great many free devices and a functioning local area. Node.js, because of its association with JS, immediately rose in ubiquity — presently it has in excess of 368 million downloads and a great many free tools in the bundle module. 

Alongside prevalence, Node.js additionally acquired the fundamental JS benefits: 

  • quick execution and information preparing; 
  • exceptionally reusable code; 
  • the code is not difficult to learn, compose, read, and keep up; 
  • tremendous asset library, a huge number of free aides, and a functioning local area. 

In addition, it’s a piece of a well known MEAN tech stack (the blend of MongoDB, Express.js, Angular, and Node.js — four tools that handle all vital parts of web application development). 

Designers Can Utilize JavaScript for the Whole Undertaking 

This is perhaps the most clear advantage of Node.js web application development. JavaScript is an unquestionable requirement for web development. Regardless of whether you construct a multi-page or single-page application, you need to know JS well. On the off chance that you are now OK with JavaScript, learning Node.js won’t be an issue. Grammar, fundamental usefulness, primary standards — every one of these things are comparable. 

In the event that you have JS designers in your group, it will be simpler for them to learn JS-based Node than a totally new dialect. What’s more, the front-end and back-end codebase will be basically the same, simple to peruse, and keep up — in light of the fact that they are both JS-based. 

A Quick Environment for Microservice Development 

There’s another motivation behind why Node.js got famous so rapidly. The environment suits well the idea of microservice development (spilling stone monument usefulness into handfuls or many more modest administrations). 

Microservices need to speak with one another rapidly — and Node.js is probably the quickest device in information handling. Among the fundamental Node.js benefits for programming development are its non-obstructing algorithms.

Node.js measures a few demands all at once without trusting that the first will be concluded. Many microservices can send messages to one another, and they will be gotten and addressed all the while. 

Versatile Web Application Development 

Node.js was worked in view of adaptability — its name really says it. The environment permits numerous hubs to run all the while and speak with one another. Here’s the reason Node.js adaptability is better than other web backend development arrangements. 

Node.js has a module that is liable for load adjusting for each running CPU center. This is one of numerous Node.js module benefits: you can run various hubs all at once, and the environment will naturally adjust the responsibility. 

Node.js permits even apportioning: you can part your application into various situations. You show various forms of the application to different clients, in light of their age, interests, area, language, and so on. This builds personalization and diminishes responsibility. Hub accomplishes this with kid measures — tasks that rapidly speak with one another and share a similar root. 

What’s more, Node’s non-hindering solicitation handling framework adds to fast, letting applications measure a great many solicitations. 

Control Stream Highlights

Numerous designers consider nonconcurrent to be one of the two impediments and benefits of Node.js web application development. In Node, at whatever point the capacity is executed, the code consequently sends a callback. As the quantity of capacities develops, so does the number of callbacks — and you end up in a circumstance known as the callback damnation. 

In any case, Node.js offers an exit plan. You can utilize systems that will plan capacities and sort through callbacks. Systems will associate comparable capacities consequently — so you can track down an essential component via search or in an envelope. At that point, there’s no compelling reason to look through callbacks.

 

Final Words

So, these are some of the top benefits of Nodejs in web application development. This is how Nodejs is contributing a lot to the field of web application development. 

I hope now you are totally aware of the whole process of how Nodejs is really important for your web project. If you are looking to hire a node js development company in India then I would suggest that you take a little consultancy too whenever you call. 

Good Luck!

Original Source

#node.js development company in india #node js development company #hire node js developers #hire node.js developers in india #node.js development services #node.js development

Hire Dedicated Node.js Developers - Hire Node.js Developers

If you look at the backend technology used by today’s most popular apps there is one thing you would find common among them and that is the use of NodeJS Framework. Yes, the NodeJS framework is that effective and successful.

If you wish to have a strong backend for efficient app performance then have NodeJS at the backend.

WebClues Infotech offers different levels of experienced and expert professionals for your app development needs. So hire a dedicated NodeJS developer from WebClues Infotech with your experience requirement and expertise.

So what are you waiting for? Get your app developed with strong performance parameters from WebClues Infotech

For inquiry click here: https://www.webcluesinfotech.com/hire-nodejs-developer/

Book Free Interview: https://bit.ly/3dDShFg

#hire dedicated node.js developers #hire node.js developers #hire top dedicated node.js developers #hire node.js developers in usa & india #hire node js development company #hire the best node.js developers & programmers

Node JS Development Company| Node JS Web Developers-SISGAIN

Top organizations and start-ups hire Node.js developers from SISGAIN for their strategic software development projects in Illinois, USA. On the off chance that you are searching for a first rate innovation to assemble a constant Node.js web application development or a module, Node.js applications are the most appropriate alternative to pick. As Leading Node.js development company, we leverage our profound information on its segments and convey solutions that bring noteworthy business results. For more information email us at hello@sisgain.com

#node.js development services #hire node.js developers #node.js web application development #node.js development company #node js application

Deploy a Node.js App to Heroku's Free Tier + Keeping the App Alive | Node.js + Express.js

In this video, we’ll be going over how to quickly deploy your Node.js app to Heroku for FREE and how we can keep this app alive/online despite Heroku’s free tier’s limitations.

Building the Mars Rover Pictures of the Day App: https://www.youtube.com/watch?v=s5sygFQ_vLE

Kaffeine: https://kaffeine.herokuapp.com/
Other alternatives to keep Heroku apps alive:

Sections:
0:00 - Intro
0:22 - Discussing how to keep Heroku’s free apps alive
1:20 - Linking your Heroku app to your GitHub repo
2:47 - Setting up the server and GET endpoint to ping
7:09 - Setting up the config to start the app
8:46 - Verifying the deployment
9:36 - Keeping the app alive/online
10:23 - Conclusion

Found this video helpful? Feel free to support this channel here: https://ko-fi.com/jacksonyuan

#express.js #express #node.js #node #heroku's

sophia tondon

sophia tondon

1625114985

Top 10 NodeJs app Development Companies- ValueCoders

Node.js is a prominent tech trend in the space of web and mobile application development. It has been proven very efficient and useful for a variety of application development. Thus, all business owners are eager to leverage this technology for creating their applications.

Are you striving to develop an application using Node.js? But can’t decide which company to hire for NodeJS app development? Well! Don’t stress over it, as the following list of NodeJS app development companies is going to help you find the best partner.

Let’s take a glance at top NodeJS application development companies to hire developers in 2021 for developing a mind-blowing application solution.

Before enlisting companies, I would like to say that every company has a foundation on which they thrive. Their end goals, qualities, and excellence define their competence. Thus, I prepared this list by considering a number of aspects. While making this list, I have considered the following aspects:

  • Review and rating
  • Enlisted by software peer & forums
  • Hourly price
  • Offered services
  • Year of experience (Average 8+ years)
  • Credibility & Excellence
  • Served clients and more

I believe this list will help you out in choosing the best NodeJS service provider company. So, now let’s explore the top NodeJS developer companies to choose from in 2021.

#1. JSGuru

JSGuru is a top-rated NodeJS app development company with an innovative team of dedicated NodeJS developers engaged in catering best-class UI/UX design, software products, and AWS professional services.

It is a team of one of the most talented developers to hire for all types of innovative solution development, including social media, dating, enterprise, and business-oriented solutions. The company has worked for years with a number of startups and launched a variety of products by collaborating with big-name corporations like T-systems.

If you want to hire NodeJS developers to secure an outstanding application, I would definitely suggest them. They serve in the area of eLearning, FinTech, eCommerce, Telecommunications, Mobile Device Management, and more.

  • Ratings: 4.9/5.0

  • Founded: 2006

  • Headquarters: Banja Luka, Bosnia, and Herzegovina

  • Price: Starting from $50/hour

Visit Website - https://www.valuecoders.com/blog/technology-and-apps/top-node-js-app-development-companies

#node js developer #hire node js developer #hiring node js developers #node js development company #node.js development company #node js development services