# centrifugo
**Repository Path**: viron/centrifugo
## Basic Information
- **Project Name**: centrifugo
- **Description**: Scalable real-time messaging server in a language-agnostic way. Set up once and forever.
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No
## Statistics
- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-09-25
- **Last Updated**: 2022-09-29
## Categories & Tags
**Categories**: Uncategorized
**Tags**: None
## README
[](https://t.me/joinchat/ABFVWBE0AhkyyhREoaboXQ) [](https://discord.gg/tYgADKx)
Centrifugo is an open-source scalable real-time messaging server. Centrifugo can instantly deliver messages to application online users connected over supported transports (WebSocket, HTTP-streaming, SSE/EventSource, GRPC, SockJS, WebTransport). Centrifugo has the concept of a channel – so it's a user-facing PUB/SUB server.
Centrifugo is language-agnostic and can be used to build chat apps, live comments, multiplayer games, real-time data visualizations, collaborative tools, etc. in combination with any backend. It is well suited for modern architectures and allows decoupling the business logic from the real-time transport layer.
Several official client SDKs for browser and mobile development wrap the bidirectional protocol. In addition, Centrifugo supports a unidirectional approach for simple use cases with no SDK dependency.
For details, go to the [Centrifugo documentation site](https://centrifugal.dev).
### How to install
See [installation instructions](https://centrifugal.dev/docs/getting-started/installation) in Centrifugo documentation.
### Highlights
* Centrifugo is fast and capable to scale to millions of simultaneous connections
* Simple integration with any application – Centrifugo works as a separate service, provides HTTP and GRPC API
* Client real-time SDKs for popular frontend environments – for both web and mobile development
* Strict client protocol based on Protobuf schema, with JSON and binary data transfer support
* Bidirectional transport support (WebSocket and SockJS) for full-featured communication
* Unidirectional transport support for simple use cases with zero SDK dependency - use native APIs (SSE, Fetch, WebSocket, GRPC)
* User authentication with JWT or over connection request proxy to the configured HTTP/GRPC endpoint
* Proper connection management and expiration control
* Various types of channel subscriptions: client-side or server-side
* Transform RPC calls sent over real-time transport to the configured HTTP or GRPC endpoint calls
* Presence information for channels (show all active clients in a channel)
* History information for channels (last messages published into a channel)
* Join/leave events for channels (client subscribed/unsubscribed)
* Automatic recovery of missed messages between reconnects over configured retention period
* Built-in administrative web panel
* Cross-platform – works on Linux, macOS and Windows
* Ready to deploy (Docker, RPM/DEB packages, automatic TLS certificates, Prometheus instrumentation, Grafana dashboard)
* Open-source license
### Backing
This repository is hosted by [packagecloud.io](https://packagecloud.io/).
Also thanks to [JetBrains](https://www.jetbrains.com/) for supporting OSS (most of the code here written in Goland):
