This was my first Node.js app. You could call it experimental. I also used Express.

The social ranking platform, Klout, used to use a PHP & LAMP stack but found it difficult to continue to scale, so when they had the chance they moved to a Node.js backend. They even wrote about switching to Node.js and how they use it. [additional source: http://blog.klout.com/2011/10/the-tech-behind-klout-com/]

The server side of Trello is built in Node.js. We knew we wanted instant propagation of updates, which meant that we needed to be able to hold a lot of open connections, so an event-driven, non-blocking server seemed like a good choice. Node also turned out to be an amazing prototyping tool for a single-page app. The prototype version of the Trello server was really just a library of functions that operated on arrays of Models in the memory of a single Node.js process, and the client simply invoked those functions through a very thin wrapper over a WebSocket. This was a very fast way for us to get started trying things out with Trello and making sure that the design was headed in the right direction. We used the prototype version to manage the development of Trello and other internal projects at Fog Creek.

Wikipedia and other Wikimedia Foundation projects use Node.js for VisualEditor's backend, Parsoid.

Node is installed for asset compilation during deployment.

We decided to move the provisioning process to an API-driven process, and had to decide among a few implementation languages:

• Go, the server-side language from Google
• NodeJS, an asynchronous framework in Javascript

We built prototypes in both languages, and decided on NodeJS:

• NodeJS is asynchronous-by-default, which suited the problem domain. Provisioning is more like “start the job, let me know when you’re done” than a traditional C-style program that’s CPU-bound and needs low-level efficiency.
• NodeJS acts as an HTTP-based service, so exposing the API was trivial

Getting into the headspace and internalizing the assumptions of a tool helps pick the right one. NodeJS assumes services will be non-blocking/event-driven and HTTP-accessible, which snapped into our scenario perfectly. The new NodeJS architecture resulted in a staggering 95% reduction in processing time: requests went from 7.5 seconds to under a second.

Node.js powers our new dashboard which is now super fast even while fetching 10-15 different data views.

Running all non-static content, from our very own website to social media scrapers.

More new stuff been made with node.js especially real-time bits.

I use this for some HTML5 based applications.

Powers our API along with all our DevOps tasks.

Node.js is the base for the RESTful API and drives all background jobs on the Azure WebSites platform.

Our web gateway is based on node-http-proxy, which allows us to have high performance and scalability.

Used node.js server as backend. Interacts with MongoDB using MongoSkin package which is a wrapper for the MongoDB node.js driver. It uses express for routing and cors package for enabling cors and eyes package for enhancing readability of logs. Also I use nodemon which takes away the effort to restart the server after making changes.

API for rich client application

Back-end is almost completely powered by Node.js.

The backend server in our API, we believe this is the future.

Rather than leverage Grunt.js, which is crap, repetitive tasks like minification can be done through Node.js scripts.

I use node as my backend, since I know javascript but I do not know any real backend technologies, with a CLI that can make all kinds of magic happen behind the scenes.

We use node.js and express in ur application server.

Core language

When ever there is a need for real time, event driven , non-blocking things this is my go to. It filles in the spots where Rails could not and it does that very well.

Heroku runs over Node.js

For JavaScript-heavy Web sites, Node.js makes it possible to reuse the same code on both the client and the server. The evented architecture is particularly well suited for "glue" code that connects other services.

Used for microservices

Power build tools

Automating gulp tasks

KB's backend is built on Node js

We are using Node.js as our API controller.

Node.js as an asynchronous allows easy scaling of our websocket server for the multiplayer aspect of the game

I use node.js mainly for backend-utility and data management scripts.

We use Node for our full stack web framework. The native libraries provide unparalleled "isomorphic" functionality.

Hexo is built on top of NodeJS and I had to use it to create the Deezer Hexo plugin.

Natively async for network programming. Reach for Native Addons when you need extra horsepower.

All our system relies on node.js

Most of the code we write on the server-side is in Node, due to it's flexibility, ease of use and extremely quick runtime once setup correctly.

Server side application logic and development tooling logic.

Data pump from Firebase into Apache Nifi. Manages keys to only listen for newest data.

Server-side data fetching and rendering of React components.

The framework the the http server to see the results and manage the documents processed.

As a main platform for the server stack

All my web applications and almost all of my command line scripts run on node.js

A lot of our tools that run on our IoT devices are written in Node.js. The simplicity & async nature of Node.js makes it very easy and efficient to develop and maintain these tools.

Main programming language of all backend services.

Catalogue

It's the heart of our application.

Builds and misc. server tasks.

Building tool and server side apps

Node.js is used both for our Frontend tooling and as a basis for some of our API endpoints.

Runs all my Build Tools

Platform for the build and command line utilities, for client interface module.

It is not used directly

Fast and easy to code. Hopefully. Development with Java is painfully slow.

Live chat server

We use Node JS for high speed I/O and REST-routing.

Backend handling WebUI and API requests.

Leverages on LevelDB to keep track of what's where/when it was stored. Interfaces to Yubico to check YubiKeys' OTP validity.

Server-side technology.

Our Ghost blog relies on Node.js

Basic webserver

As the server.

Backend instance to communicate via websockets.

In order to speed up loading times and allow SEO, a separate node server runs along side the Django server to render React components serverside and return the rendered HTML.

building stuff with bamboo

We were mesmerized by the great loop of libuv.

Used primary to setup the rest of the stack. NPM is just a amazing tool. Also used for testing simple javascript code straight from the command line.

Base Framework

We have some backend microservices written in Node.js throughout the company.

REST server for backend

Used it for full stack web application development.

API server built upon it. Tooling for Angular 2 runs with help of Node.js

Runs on Node v6+ as a standalone server. Optionally uses nodemon for monitoring of server process.

NodeJS drove the app's backend server (ExpressJS), frontend build tools (Gulp and Webpack), linters (ESLint), and most of the database scripts (through Knex and Mongoose)

Backend API is written in Node

Our web services are end-to-end javascript, powered by Node.js on the server side.

Most of the application is written in Node

We have a Node.js client library for the ThisData API

Ohh, Non-blocking, JSON embedded, javascriptable event loop server, we love you. Node is quick, easy, extensible, JSON and HTTP native. It's great. We can easily integrate Purescript code with it and even crazier stuff (like Idris https://github.com/statebox/dstbx)

Our server-side framework

Various bots

Full Stack framework

Used with Express.js and many other JavaScript frameworks and libraries.

javascript 의 눈부신 발전에 큰 도움이 되준 녀석이다. 빠르게 뭔가 만들고 싶다면, Node.js 가 최고 인것 같다. 그래서 개인 프로젝트는 거의 Node.js로 진행 했다. 작은 단위로 만들어 나가고 빨리 결과물을 볼 수 있어서 나에게 딱 맞는 것 같다.

Because sometime it's faster to do it with node than PHP :)

Ambar API is based on Node.js

Used for sending real-time notifications to connected browsers.

NodeJS is our language of choice for API and web application development.

We use node.js to build backend services as well as middleware for our react-redux frontend applications.

All backend projects I worked on during the past 3 years use Node at their core (mostly in combination with Express).

All backend code is done in node.js

We have a SOA for our systems. It isn't quite Microservices jsut yet, but it does provide domain encapsulation for our systems allowing the leaderboards to fail without affecting the login or education content.

We've written a few internal modules including a very simple api framework.

I ended up picking Node.js because the game client is entirely in JavaScript as well. This choice made it a lot easier for developers to cross borders between being "client side" game developers and "server side" game developers. It also meant that the pool of knowledge/best practices is applicable almost across the company.

basic image processing, transform wrapper.

All backend servers at Wirkn are based on Node.js. Our production servers are always kept up to date with the latest LTS version.

Restful api gateway

Used for web apps, routing, chat clients, backend job systems and web socket apps.

I'm using node modules through npm for this addon. Modules include babel, auto-changelog, and run-when-changed.

For app server.

I use nodejs to build helper tools for my web application.

grunt task runner

Server-side JS, part of my full-stack JS approach.

ReactJs와 Express를 이용해보고있습니다

Runs front-end server

Mostly use it for NPM.

Serves routing for the app, allows quick deployment on Heroku.

서버사이드의 런타임 환경은 Node.js를 사용합니다.

Fast development.

Handles the grunt API work, authentication and providing API <-> Cache <-> Database link.

We use Node.js as our backend

Vue Server-Site Rendering
Socket.io server
etc...

Node is used by ghost, so for my personal blog I mainly work with configuration files, site structure, templates, and a little bit of database related work.

I am using nodejs as Back-end API server for the mobile application

Node.js is our primary language for both backend and frontend.

Node.js is the foundation for the server. Using Express.js for serving up web content, and sockets.io for synchronizing communications between all clients and the server, the entire game runs as Javascript in Node.js.

I don't know how well this will scale if/when I have hundreds of people connected simultaneously, but I suspect that when that time comes, it may be just a matter of increasing the hardware.

As for why I chose Node.js... I just love JavaScript! My code is all original, meaning that I didn't have to inherit anyone's bad Javascript. I'm perfectly capable of creating my own bad Javascript, thank you! Also, npm rocks!

应用服务器

I used node.js to program the bot and handle all of the NPM pacakges

Javascript is on its way ... typescripted

Aggregators

Node.js simplifies development by letting you use a single language on the client and server. This has the added benefit of keeping your apps DRY because you can share code between them.

Its package registry, npm, is the largest of any language. With over 500,000 packages and 500+ new packages being registered every day, you can almost always find what you're looking for. And if you can't, why not make your own and share it with the world?

Running local site build tasks.

Node.js is used for interactive parts of our homepage, cronjobs and building (gulp). The great performance and asynchronity makes a trustworthy companion in developing live web-parts (socket.io).

I use it with webpack & browserify to build my SPA websites or to build linkable libraries for my non-SPA websites

As part of ApertusVR's JsAPI plugin, Node.js serves REST API, socket API and runs JavaScript plugins.

Laravel mix runs on node.

Even though, It's full stakers' stuff. It has helped front end way too much with its power full build features and functionality

As a real-time proxy between frontend and backend components. (socket.io, publish, subscribe, redis, http restful api)

We use NodeJS as one of the systems for our backends. We use NodeJS primarily when working with apps that need to work in realtime or carry out many actions asynchronously. We also use NodeJS for our custom Nagios and Grafana reporting and monitoring tools.

Our stack core.

as front-end for Reactjs/Redux Sass webpack gulp etc

With expressjs - all our APIs and workers. 🎸🤘🚀

Backbone of the Documentation and PostCSS build process for the framework (development).

Not required for use.

Node.JS is a no-brainer for Hndhld's JavaScript environment.

JS serverside? OH YIS!

센드버드 메시지 웹훅 핸들러 활용

Node's Express framework makes it easy to create APIs

Server side APIs for mobile apps.

Environnement d'exécution

Cross platform JS for server, browser, desktop and mobile P2P video streaming

We use Node for API server, Lambda, and some utility tools. The biggest reason is developers can share the same language with front-end. And Node.js is mature/active enough to be a decent startup choice.

IpA is build using Node.js

Node.js is used in Kuro (https://github.com/Marc3842h/kuro).

Kuro is the browser facing portion of shiro. It is the runtime the web backend is using to run, as it is written in TypeScript, compiled to JavaScript and then interpreted and run by Node.js.

PrometheanTV uses NodeJS for many of the back-end applications and services including the Broadcast Center Tool, Rest API, and video embed services.

API Development

Our Back-end's application are maked using Node.js

It's fast, it's JavaScript, it's solid, it's supported by millions of developers, it's simply awesome.

Node.js powers some of our smaller tools.

Our microservices are built with node.js primarily.

Used as part of the core technology for Coolfront Mobile and all the accompanying ancillary systems.

Our backend is a large Django app. We use lots of django-rest-framework to interface with the client side.

<3

Framework for our server-side code.

백엔드 시스템을 구축할 때 django 를 이용하였습니다. django 로 최초 백엔드 시스템을 구축하는데 3일이 걸리지 않았습니다.

Used for templating, the ORM (database management), file management (user-uploaded content), and for the REST framework package.

backend and all the database stuff

Django (and Python in general) lets us write concise, readable, and reasonably high-level code.

Django framework provides the web application framework, session modules, database and templates.

Our back-end is developed in Django.

Our backend was written in Django. We took advantage of the ready-to-go admin interface as a go-to solution for the client to be able to authorize his users, as well as other functionality, while most of the work was done through the Django Rest Framework.

SendBird API server

API. Use with JSON API and Django REST framework.

Django is used as a framework behind the project

We use django CMS for our primary website. It's flexible, easy to use, and it seems to perform very well.

Quick development of standalone sites for smaller projects, REST APIs and basic CMS work.

玩坏了，又玩好了

django는 저의 무기입니다.

django 이외에 flask로 간단한 restful api를 만들면서 느낀점은 framework 보다 언어가 중요하다는것을 알았고 django가 얼마나 큰 framework인지 알게되었습니다.

저는 signal 사용을 좋아합니다.

Flask랑 Django 중에 고민하다 누구든 최대한 빨리 코드에 기여할 수 있었으면 좋겠다 싶어서 Django로 결정

정말 편리하고 많은것을 알아서 제공해 주는 프레임워크 이다. 책의 예제만 진행해서 많이 써보지는 못했지만, 쉽게 쉽게 웹을 개발 할 수 있는 점이 매력적 이다. 게다가 orm 이 기본으로 내장 되어 있고 db 도 sqlite 가 기본으로 되어있어. 그냥 django 만 설치하면 바로 웹개발이 가능하다.

Used at cloudfind, Super Awesome and contributed to source

All things backend

Hands down the best Python web framework I've used. Very easy to extend and add apps and go from 0 to full project quickly and painlessly. I built a fully authenticated project with a single endpoint in less than 30 minutes.

빠른 개발에 최적화 된 현대적인 Framework라고 생각합니다.

Quick feature development.

server and backend

web service about 6 tutorials learn from AskDjango(nomade.kr)

Our website and API built using python and Django framework.

Web app development a long ago. Nowadays sometimes I approve pull requests in our projects.