Code Quality Rank: L5
Monthly Downloads: 0
Programming language: TypeScript
License: MIT License
Tags: Real Time    
Latest version: v6.2.0

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deepstream - the open realtime server

deepstream is an open source server inspired by concepts behind financial trading technology. It allows clients and backend services to sync data, send messages and make rpcs at very high speed and scale.

npm versionDocker Stars

deepstream has three core concepts for enabling realtime application development

records are schema-less, persistent documents that can be manipulated and observed. Any change is synchronized with all connected clients and backend processes in milliseconds. Records can reference each other and be arranged in lists to allow modelling of relational data

events allow for high performance, many-to-many messaging. deepstream provides topic based routing from sender to subscriber, data serialisation and subscription listening.

remote procedure calls allow for secure and highly available request response communication. deepstream handles load-balancing, failover, data-transport and message routing.

deepstream offers a combination of different authentication mechanisms with a powerful permission-language called Valve that allows you to specify which user can perform which action with which data.

Getting Started:

  1. Tutorials - What is deepstream
  2. Installing deepstream
  3. Quickstart
  4. Documentation

Community Links

  1. Stack Overflow
  2. Github Discussions


deepstream development is a great way to get into building performant Node.js applications, and contributions are always welcome with lots of ❤. Contributing to deepstream is as simple as having Node.js (10+) and TypeScript (3+) installed, cloning the repo and making some changes.

~ » git clone [email protected]:deepstreamIO/deepstream.io.git
~ » cd deepstream.io
~/deepstream.io » git submodule update --init
~/deepstream.io » npm i
~/deepstream.io » npm start
      _                     _
   __| | ___  ___ _ __  ___| |_ _ __ ___  __ _ _ __ ____
  / _` |/ _ \/ _ \ '_ \/ __| __| '__/ _ \/ _` | '_ ` _  \
 | (_| |  __/  __/ |_) \__ \ |_| | |  __/ (_| | | | | | |
  \__,_|\___|\___| .__/|___/\__|_|  \___|\__,_|_| |_| |_|
 =====================   starting   =====================

From here you can make your changes, and check the unit tests pass:

~/deepstream.io » npm t

If your changes are substantial you can also run our extensive end-to-end testing framework:

~/deepstream.io » npm run e2e

For power users who want to make sure the binary works, you can run sh scripts/package.sh true. You'll need to download the usual node-gyp build environment for this to work and we only support the latest LTS version to compile. This step is usually not needed though unless your modifying resource files or changing dependencies.