PM2 tutorial for Node.js developers

Have you ever thought about how Node.js applications are deployed and run in the server?.

As we all know, we use Nodemon for application development. But, can’t we use the same in the production server.

Actually, there are some problems with that. While using nodemon, if you close the terminal, it will stop the process of the node.js app. that will a problem in Production.

we want the application to run without any interruption in the Production server.

there are few npm packages out there that solve this problem. one of the popular npm packages is pm2.

_________________________________________________________________________________

You may also like: Getting Started | Docker and NodeJS

_________________________________________________________________________________

what is pm2?

pm2 is a process manager in production for Node.js applications. it helps to manage the processes of Node.js applications. it comes with a lot of advanced feature such as application cluster, load balancing, etc.

Installing pm2

Firstly, pm2 should be installed globally to run several applications.

npm install pm2 -g

pm2 uses a configuration file to maintain the application.it can be either JSON or js or YAML file.

Here, we are going to use process.json file which will have the configuration for our application.

Application Setup

Create a simple node.js application with a file called app.js

npm init --yes

add the following code in app.js.

const express = require('express');
const app = express();
app.get(‘/’,(req,res) => {
res.send("PM2 is working, Send me Home");

})
const PORT = process.env.PORT;

app.listen(PORT,() => {

console.log(server is running on port ${PORT});

})

After that, create a file called process.json. it contains the apps array which contains the application configuration details.

{

“apps”: [{

“name” : “nodepm2”,

“script” : “./app.js”,

“env” : {

“PORT” : 4005

},

“env_production” : {

“PORT” : 4000

}

}]

}

Firstly, name is the name of the process that pm2 running. pm2 will run the file mentioned in the script. Here, it will run like

pm2 start app.js

env contains the environment variable for the application. we can specify different env variables such as development, production or staging.

Here, we mentioned the environment variables for production and default(development).

Running pm2

Therefore, To run the application using pm2, we can start the application using the configuration of pm2.

pm2 start process.json

we can stop the node application process by specifying the process id.

pm2 stop 0

To delete the process once it is stopped, specify the process id with the delete command.

we can run the pm2 with different environment variables set up by specifying the env in pm2 command.

pm2 start process.json --env production

For listing all the process that pm2 running,

Summary

pm2 is one of the most used libraries for managing the node.js application process in the production server.

There are a lot of advanced features in pm2 that will be convered in upcoming articles.

Until then, Happy Coding

Further Reading

Angular7 CRUD with nodejs and mysql example

How To Web Scraping With Nodejs Cheerio

The Complete Node.js Developer Course (3rd Edition)

How to install NodeJs, MongoDB on Ubuntu 18.04

Originally published by  ganeshmani009 at cloudnweb.dev

=============================

Thanks for reading

If you liked this post, share it with all of your programming buddies!

Follow me on Facebook | Twitter

#node-js #javascript #web-development

What is GEEK

Buddha Community

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

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

Node JS Development Company | Hire Node.js Developers

The NineHertz promises to develop a pro-active and easy solution for your enterprise. It has reached the heights in Node js web development and is considered as one of the top-notch Node js development company across the globe.

The NineHertz aims to design a best Node js development solution to improve their branding status and business profit.

Looking to hire the leading Node js development company?

#node js development company #nodejs development company #node.js development company #node.js development companies #node js web development #node development company

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

10 Reasons Which Make Node.js "A First Choice For Web-App Development"

Businesses and developers opt for Node.js since it possesses unbeatable features like JavaScript. 43% of Node.js developers utilize it for business apps, and 85% primarily use it for web application development. So It Has More To Offer Than Thought!

Before we go ahead, it is essential to understand why Node.js is better?

The Open- source and cross-platform attributes of Node.js make this a preferred choice for web development. Nonetheless, enterprises would be wondering about possible alternatives to Node.js. So here, throughout this blog, we’ll highlight critical pointers that’ll make Node.js a real success for web app development.

Read Full Blog- https://vocal.media/stories/title-10-reasons-which-make-node-js-a-first-choice-for-web-app-development

#node js developer #node js developers #node.js developers #nodejs developers #hire node developer #hire node js developer