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https://github.com/twitter/finagle

A fault tolerant, protocol-agnostic RPC system
https://github.com/twitter/finagle

distributed-systems finagle http http2 java memcached mysql redis rpc scala thrift zipkin

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A fault tolerant, protocol-agnostic RPC system

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README 

        


  






# Finagle



[![Build Status](https://github.com/twitter/finagle/workflows/continuous%20integration/badge.svg?branch=develop)](https://github.com/twitter/finagle/actions?query=workflow%3A%22continuous+integration%22+branch%3Adevelop)

[![Project status](https://img.shields.io/badge/status-active-brightgreen.svg)](#status)

[![Gitter](https://badges.gitter.im/twitter/finagle.svg)](https://gitter.im/twitter/finagle?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)

[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.twitter/finagle-core_2.12/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.twitter/finagle-core_2.12)



## Status



This project is used in production at Twitter (and many other organizations), and is being actively developed and maintained.



## Releases



[Releases](https://maven-badges.herokuapp.com/maven-central/com.twitter/finagle_2.12)

are done on an approximately monthly schedule. While [semver](https://semver.org/)

is not followed, the [changelogs](CHANGELOG.rst) are detailed and include sections on

public API breaks and changes in runtime behavior.



## Getting involved



* Website: https://twitter.github.io/finagle/

* Source: https://github.com/twitter/finagle/

* Mailing List: [[email protected]](https://groups.google.com/forum/#!forum/finaglers)

* Chat: https://gitter.im/twitter/finagle

* Blog: https://finagle.github.io/blog/



Finagle is an extensible RPC system for the JVM, used to construct

high-concurrency servers. Finagle implements uniform client and server APIs for

several protocols, and is designed for high performance and concurrency. Most of

Finagle’s code is protocol agnostic, simplifying the implementation of new

protocols.



For extensive documentation, please see the

[user guide](https://twitter.github.io/finagle/guide/) and

[API documentation](https://twitter.github.io/finagle/docs/com/twitter/finagle)

websites. Documentation improvements are always welcome, so please send patches

our way.



## Adopters



The following are a few of the companies that are using Finagle:



* [Foursquare](https://foursquare.com/)

* [ING Bank](https://ing.nl)

* [Pinterest](https://www.pinterest.com/)

* [SoundCloud](https://soundcloud.com/)

* [Tumblr](https://www.tumblr.com/)

* [Twitter](https://twitter.com/)



For a more complete list, please see

[our adopter page](https://github.com/twitter/finagle/blob/release/ADOPTERS.md).

If your organization is using Finagle, consider adding a link there and sending

us a pull request!



## Contributing



We feel that a welcoming community is important and we ask that you follow Twitter's

[Open Source Code of Conduct](https://github.com/twitter/.github/blob/main/code-of-conduct.md)

in all interactions with the community.



The `release` branch of this repository contains the latest stable release of

Finagle, and weekly snapshots are published to the `develop` branch. In general

pull requests should be submitted against `develop`. See

[CONTRIBUTING.md](https://github.com/twitter/finagle/blob/release/CONTRIBUTING.md)

for more details about how to contribute.



## License



Copyright 2010 Twitter, Inc.



Licensed under the Apache License, Version 2.0: https://www.apache.org/licenses/LICENSE-2.0