How to Use SSL/TLS with Node.js

In 2020, there’s no reason for your website not to use HTTPS. Visitors expect it, Google uses it as a ranking factor and browser makers will happily name and shame those sites not using it

In this tutorial, I’ll walk you through a practical example of how to add a Let’s Encrypt–generated certificate to your Express.js server.

But protecting our sites and apps with HTTPS isn’t enough. We should also demand encrypted connections from the servers we’re talking to. We’ll see that possibilities exist to activate the SSL/TLS layer even when it’s not enabled by default.

Note: if you’re looking for instructions on how to set up SSL with NGINX when configuring it to work as a reverse proxy for a Node app, check out our quick tip, “Configuring NGINX and SSL with Node.js”.

Let’s start with a short review of the current state of HTTPS.

HTTPS Everywhere

The HTTP/2 specification was published as RFC 7540 in May 2015, which means at this point it’s a part of the standard. This was a major milestone. Now we can all upgrade our servers to use HTTP/2. One of the most important aspects is the backwards compatibility with HTTP 1.1 and the negotiation mechanism to choose a different protocol. Although the standard doesn’t specify mandatory encryption, currently no browser supports HTTP/2 unencrypted. This gives HTTPS another boost. Finally we’ll get HTTPS everywhere!

What does our stack actually look like? From the perspective of a website running in the browser (at the application level) we have to traverse the following layers to reach the IP level:

  1. Client browser
  2. HTTP
  3. SSL/TLS
  4. TCP
  5. IP

HTTPS is nothing more than the HTTP protocol on top of SSL/TLS. Hence all of HTTP’s rules still apply. What does this additional layer actually give us? There are multiple advantages: we get authentication by having keys and certificates; a certain kind of privacy and confidentiality is guaranteed, as the connection is encrypted in an asymmetric manner; and data integrity is also preserved, as transmitted data can’t be changed during transit.

One of the most common myths is that using SSL/TLS is computationally expensive and slows the server down. This is certainly not true anymore. We also don’t need any specialized hardware with cryptography units. Even for Google, the SSL/TLS layer accounts for less than 1% of the CPU load and the the network overhead of HTTPS as compared to HTTP is below 2%. All in all, it wouldn’t make sense to forgo HTTPS for the sake of a little overhead.

As Ilya Grigorik puts it, there is but one performance problem:

TLS has exactly one performance problem: it is not used widely enough. Everything else can be optimized: https://t.co/1kH8qh89Eg

— Ilya Grigorik (@igrigorik) February 20, 2014

The most recent version is TLS 1.3. TLS is the successor of SSL, which is available in its latest release SSL 3.0. The changes from SSL to TLS preclude interoperability, but the basic procedure is, however, unchanged. We have three different encrypted channels. The first is a public key infrastructure for certificate chains. The second provides public key cryptography for key exchanges. Finally, the third one is symmetric. Here we have cryptography for data transfers.

TLS 1.3 uses hashing for some important operations. Theoretically, it’s possible to use any hashing algorithm, but it’s highly recommended to use SHA2 or a stronger algorithm. SHA1 has been a standard for a long time but has recently become obsolete.

HTTPS is also gaining more attention for clients. Privacy and security concerns have always been around, but with the growing amount of online accessible data and services, people are getting more and more concerned. For those sites that don’t implement it, there is a useful browser extension — HTTPS Everywhere from the EFF — which encrypts our communications with most websites.

HTTPS-everywhere

The creators realized that many websites offer HTTPS only partially. The plugin allows us to rewrite requests for those sites that offer only partial HTTPS support. Alternatively, we can also block HTTP altogether (see the screenshot above).

Basic Communication

The certificate’s validation process involves validating the certificate signature and expiration. We also need to verify that it chains to a trusted root. Finally, we need to check to see if it’s been revoked. There are dedicated, trusted authorities in the world that grant certificates. In case one of these were to become compromised, all other certificates from the said authority would get revoked.

The sequence diagram for an HTTPS handshake looks as follows. We start with the initialization from the client, which is followed by a message with the certificate and key exchange. After the server sends its completed package, the client can start the key exchange and cipher specification transmission. At this point, the client is finished. Finally the server confirms the cipher specification selection and closes the handshake.

HTTPS-sequence

The whole sequence is triggered independently of HTTP. If we decide to use HTTPS, only the socket handling is changed. The client is still issuing HTTP requests, but the socket will perform the previously described handshake and encrypt the content (header and body).

So what do we need to make SSL/TLS work with an Express.js server?

HTTPS

By default, Node.js serves content over HTTP. But there’s also an HTTPS module that we have to use in order to communicate over a secure channel with the client. This is a built-in module, and the usage is very similar to how we use the HTTP module:

const https = require("https"),
  fs = require("fs");

const options = {
  key: fs.readFileSync("/srv/www/keys/my-site-key.pem"),
  cert: fs.readFileSync("/srv/www/keys/chain.pem")
};

const app = express();

app.use((req, res) => {
  res.writeHead(200);
  res.end("hello world\n");
});

app.listen(8000);

https.createServer(options, app).listen(8080);

Ignore the /srv/www/keys/my-site-key.pem and and /srv/www/keys/chain.pem files for the moment. Those are the SSL certificates we need to generate, which we’ll do a bit later. This is the part that changed with Let’s Encrypt. Previously, we had to generate a private/public key pair, send it to a trusted authority, pay them and probably wait for a bit in order to get an SSL certificate. Nowadays, Let’s Encrypt instantly generates and validates your certificates for free!

Generating Certificates

Certbot

The TLS specification demands a certificate, which is signed by a trusted certificate authority (CA). The CA ensures that the certificate holder is really who they claim to be. So basically when you see the green lock icon (or any other greenish sign to the left side of the URL in your browser) it means that the server you’re communicating with is really who it claims to be. If you’re on facebook.com and you see a green lock, it’s almost certain you really are communicating with Facebook and no one else can see your communication — or rather, no one else can read it.

It’s worth noting that this certificate doesn’t necessarily have to be verified by an authority such as Let’s Encrypt. There are other paid services as well. You can technically sign it yourself, but then (as you’re not a trusted CA) the users visiting your site will likely see a large scary warning offering to get them back to safety.

In the following example, we’ll use the Certbot, which is used to generate and manage certificates with Let’s Encrypt.

On the Certbot site you can find instructions on how to install Certbot for almost any OS/server combination. You should choose the options that are applicable to you.

A common combination for deploying Node apps is NGINX on the latest LTS Ubuntu and that’s what I’ll use here.

sudo apt-get update
sudo apt-get install software-properties-common
sudo add-apt-repository universe
sudo add-apt-repository ppa:certbot/certbot
sudo apt-get update

Webroot

Webroot is a Certbot plugin that, in addition to the Certbot default functionality (which automatically generates your public/private key pair and generates an SSL certificate for those), also copies the certificates to your webroot folder and verifies your server by placing some verification code into a hidden temporary directory named .well-known. In order to skip doing some of these steps manually, we’ll use this plugin. The plugin is installed by default with Certbot. In order to generate and verify our certificates, we’ll run the following:

certbot certonly --webroot -w /var/www/example/ -d www.example.com -d example.com

You may have to run this command as sudo, as it will try to write to /var/log/letsencrypt.

You’ll also be asked for your email address. It’s a good idea to put in a real address you use often, as you’ll get a notification if your certificate is about to expire. The trade-off for Let’s Encrypt issuing a free certificate is that it expires every three months. Luckily, renewal is as easy as running one simple command, which we can assign to a cron job and then not have to worry about expiration. Additionally, it’s a good security practice to renew SSL certificates, as it gives attackers less time to break the encryption. Sometimes developers even set up this cron to run daily, which is completely fine and even recommended.

Keep in mind that you have to run this command on a server to which the domain specified under the -d (for domain) flag resolves — that is, your production server. Even if you have the DNS resolution in your local hosts file, this won’t work, as the domain will be verified from outside. So if you’re doing this locally, it will most likely fail, unless you opened up a port from your local machine to the outside world and have it running behind a domain name which resolves to your machine. This is a highly unlikely scenario.

Last but not least, after running this command, the output will contain paths to your private key and certificate files. Copy these values into the previous code snippet — into the cert property for certificate, and the key property for the key:

// ...

const options = {
  key: fs.readFileSync("/var/www/example/sslcert/privkey.pem"),
  cert: fs.readFileSync("/var/www/example/sslcert/fullchain.pem") // these paths might differ for you, make sure to copy from the certbot output
};

// ...

Tighetning It Up

HTTP Strict Transport Security

Have you ever had a website where you switched from HTTP to HTTPS and there were some residual redirects still redirecting to HTTP? HTTP Strict Transport Security (HSTS) is a web security policy mechanism to mitigate protocol downgrade attacks and cookie hijacking.

HSTS effectively forces the client (browser accessing your server) to direct all traffic through HTTPS — a “secure or not at all” ideology!

Express JS doesn’t allow us to add this header by default, so we’ll use Helmet, a Node module that allows us to do this. Install Helmet by running the following:

npm install helmet

Then we just have to add it as a middleware to our Express server:

const https = require("https"),
  fs = require("fs"),
  helmet = require("helmet");

const options = {
  key: fs.readFileSync("/srv/www/keys/my-site-key.pem"),
  cert: fs.readFileSync("/srv/www/keys/chain.pem")
};

const app = express();

app.use(helmet()); // Add Helmet as a middleware

app.use((req, res) => {
  res.writeHead(200);
  res.end("hello world\n");
});

app.listen(8000);

https.createServer(options, app).listen(8080);

Diffie–Hellman Strong(er) Parameters

In order to skip some complicated math, let’s cut to the chase. In very simple terms, there are two different keys used for encryption: the certificate we get from the certificate authority, and one that’s generated by the server for key exchange. The default key for key exchange (also called Diffie–Hellman key exchange, or DH) uses a “smaller” key than the one for the certificate. In order to remedy this, we’ll generate a strong DH key and feed it to our secure server for use.

In order to generate a longer (2048 bit) key, you’ll need openssl, which you probably have installed by default. In case you’re unsure, run openssl -v. If the command isn’t found, install openssl by running sudo apt install openssl (or visit their download page here):

openssl dhparam -out /var/www/example/sslcert/dh-strong.pem 2048

Then copy the path to the file to our configuration:

// ...

const options = {
  key: fs.readFileSync("/var/www/example/sslcert/privkey.pem"),
  cert: fs.readFileSync("/var/www/example/sslcert/fullchain.pem"), // these paths might differ for you, make sure to copy from the certbot output
  dhparam: fs.readFileSync("/var/www/example/sslcert/dh-strong.pem")
};

// ...

Conclusion

In 2020 and beyond, there’s no excuse to dismiss HTTPS. The future direction is clearly visible: HTTPS everywhere! In Node.js, we have lots of options for utilizing SSL/TLS. We can publish our websites in HTTPS, we can create requests to encrypted websites, and we can authorize otherwise untrusted certificates.

#nodejs #javascript #node-js

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How to Use SSL/TLS with Node.js

NBB: Ad-hoc CLJS Scripting on Node.js

Nbb

Not babashka. Node.js babashka!?

Ad-hoc CLJS scripting on Node.js.

Status

Experimental. Please report issues here.

Goals and features

Nbb's main goal is to make it easy to get started with ad hoc CLJS scripting on Node.js.

Additional goals and features are:

  • Fast startup without relying on a custom version of Node.js.
  • Small artifact (current size is around 1.2MB).
  • First class macros.
  • Support building small TUI apps using Reagent.
  • Complement babashka with libraries from the Node.js ecosystem.

Requirements

Nbb requires Node.js v12 or newer.

How does this tool work?

CLJS code is evaluated through SCI, the same interpreter that powers babashka. Because SCI works with advanced compilation, the bundle size, especially when combined with other dependencies, is smaller than what you get with self-hosted CLJS. That makes startup faster. The trade-off is that execution is less performant and that only a subset of CLJS is available (e.g. no deftype, yet).

Usage

Install nbb from NPM:

$ npm install nbb -g

Omit -g for a local install.

Try out an expression:

$ nbb -e '(+ 1 2 3)'
6

And then install some other NPM libraries to use in the script. E.g.:

$ npm install csv-parse shelljs zx

Create a script which uses the NPM libraries:

(ns script
  (:require ["csv-parse/lib/sync$default" :as csv-parse]
            ["fs" :as fs]
            ["path" :as path]
            ["shelljs$default" :as sh]
            ["term-size$default" :as term-size]
            ["zx$default" :as zx]
            ["zx$fs" :as zxfs]
            [nbb.core :refer [*file*]]))

(prn (path/resolve "."))

(prn (term-size))

(println (count (str (fs/readFileSync *file*))))

(prn (sh/ls "."))

(prn (csv-parse "foo,bar"))

(prn (zxfs/existsSync *file*))

(zx/$ #js ["ls"])

Call the script:

$ nbb script.cljs
"/private/tmp/test-script"
#js {:columns 216, :rows 47}
510
#js ["node_modules" "package-lock.json" "package.json" "script.cljs"]
#js [#js ["foo" "bar"]]
true
$ ls
node_modules
package-lock.json
package.json
script.cljs

Macros

Nbb has first class support for macros: you can define them right inside your .cljs file, like you are used to from JVM Clojure. Consider the plet macro to make working with promises more palatable:

(defmacro plet
  [bindings & body]
  (let [binding-pairs (reverse (partition 2 bindings))
        body (cons 'do body)]
    (reduce (fn [body [sym expr]]
              (let [expr (list '.resolve 'js/Promise expr)]
                (list '.then expr (list 'clojure.core/fn (vector sym)
                                        body))))
            body
            binding-pairs)))

Using this macro we can look async code more like sync code. Consider this puppeteer example:

(-> (.launch puppeteer)
      (.then (fn [browser]
               (-> (.newPage browser)
                   (.then (fn [page]
                            (-> (.goto page "https://clojure.org")
                                (.then #(.screenshot page #js{:path "screenshot.png"}))
                                (.catch #(js/console.log %))
                                (.then #(.close browser)))))))))

Using plet this becomes:

(plet [browser (.launch puppeteer)
       page (.newPage browser)
       _ (.goto page "https://clojure.org")
       _ (-> (.screenshot page #js{:path "screenshot.png"})
             (.catch #(js/console.log %)))]
      (.close browser))

See the puppeteer example for the full code.

Since v0.0.36, nbb includes promesa which is a library to deal with promises. The above plet macro is similar to promesa.core/let.

Startup time

$ time nbb -e '(+ 1 2 3)'
6
nbb -e '(+ 1 2 3)'   0.17s  user 0.02s system 109% cpu 0.168 total

The baseline startup time for a script is about 170ms seconds on my laptop. When invoked via npx this adds another 300ms or so, so for faster startup, either use a globally installed nbb or use $(npm bin)/nbb script.cljs to bypass npx.

Dependencies

NPM dependencies

Nbb does not depend on any NPM dependencies. All NPM libraries loaded by a script are resolved relative to that script. When using the Reagent module, React is resolved in the same way as any other NPM library.

Classpath

To load .cljs files from local paths or dependencies, you can use the --classpath argument. The current dir is added to the classpath automatically. So if there is a file foo/bar.cljs relative to your current dir, then you can load it via (:require [foo.bar :as fb]). Note that nbb uses the same naming conventions for namespaces and directories as other Clojure tools: foo-bar in the namespace name becomes foo_bar in the directory name.

To load dependencies from the Clojure ecosystem, you can use the Clojure CLI or babashka to download them and produce a classpath:

$ classpath="$(clojure -A:nbb -Spath -Sdeps '{:aliases {:nbb {:replace-deps {com.github.seancorfield/honeysql {:git/tag "v2.0.0-rc5" :git/sha "01c3a55"}}}}}')"

and then feed it to the --classpath argument:

$ nbb --classpath "$classpath" -e "(require '[honey.sql :as sql]) (sql/format {:select :foo :from :bar :where [:= :baz 2]})"
["SELECT foo FROM bar WHERE baz = ?" 2]

Currently nbb only reads from directories, not jar files, so you are encouraged to use git libs. Support for .jar files will be added later.

Current file

The name of the file that is currently being executed is available via nbb.core/*file* or on the metadata of vars:

(ns foo
  (:require [nbb.core :refer [*file*]]))

(prn *file*) ;; "/private/tmp/foo.cljs"

(defn f [])
(prn (:file (meta #'f))) ;; "/private/tmp/foo.cljs"

Reagent

Nbb includes reagent.core which will be lazily loaded when required. You can use this together with ink to create a TUI application:

$ npm install ink

ink-demo.cljs:

(ns ink-demo
  (:require ["ink" :refer [render Text]]
            [reagent.core :as r]))

(defonce state (r/atom 0))

(doseq [n (range 1 11)]
  (js/setTimeout #(swap! state inc) (* n 500)))

(defn hello []
  [:> Text {:color "green"} "Hello, world! " @state])

(render (r/as-element [hello]))

Promesa

Working with callbacks and promises can become tedious. Since nbb v0.0.36 the promesa.core namespace is included with the let and do! macros. An example:

(ns prom
  (:require [promesa.core :as p]))

(defn sleep [ms]
  (js/Promise.
   (fn [resolve _]
     (js/setTimeout resolve ms))))

(defn do-stuff
  []
  (p/do!
   (println "Doing stuff which takes a while")
   (sleep 1000)
   1))

(p/let [a (do-stuff)
        b (inc a)
        c (do-stuff)
        d (+ b c)]
  (prn d))
$ nbb prom.cljs
Doing stuff which takes a while
Doing stuff which takes a while
3

Also see API docs.

Js-interop

Since nbb v0.0.75 applied-science/js-interop is available:

(ns example
  (:require [applied-science.js-interop :as j]))

(def o (j/lit {:a 1 :b 2 :c {:d 1}}))

(prn (j/select-keys o [:a :b])) ;; #js {:a 1, :b 2}
(prn (j/get-in o [:c :d])) ;; 1

Most of this library is supported in nbb, except the following:

  • destructuring using :syms
  • property access using .-x notation. In nbb, you must use keywords.

See the example of what is currently supported.

Examples

See the examples directory for small examples.

Also check out these projects built with nbb:

API

See API documentation.

Migrating to shadow-cljs

See this gist on how to convert an nbb script or project to shadow-cljs.

Build

Prequisites:

  • babashka >= 0.4.0
  • Clojure CLI >= 1.10.3.933
  • Node.js 16.5.0 (lower version may work, but this is the one I used to build)

To build:

  • Clone and cd into this repo
  • bb release

Run bb tasks for more project-related tasks.

Download Details:
Author: borkdude
Download Link: Download The Source Code
Official Website: https://github.com/borkdude/nbb 
License: EPL-1.0

#node #javascript

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

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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

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

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