Development Tools

Finatra – Scala services framework built on top of TwitterServer and Finagle

Finatra is a Scala services framework built on top of TwitterServer and Finagle. It provides an easy-to-use API for creating and testing Finagle servers and apps as well as powerful JSON support, modern logging via SLF4J, Finagle client utilities, and more.

Finatra at its core is agnostic to the type of service or application being created. It can be used to build anything based on TwitterUtil: c.t.app.App.

This is free and open source software.

Key Features

  • Production use @Twitter.
  • ~50 times faster than v1.6 in several benchmarks.
  • Powerful Feature and Integration test support.
  • Optional JSR-330 Dependency Injection using Google Guice.
  • Jackson-based JSON parsing supporting required fields, default values, and validations.
  • Logback MDC integration with com.twitter.util.Local for contextual logging across futures.

Website: twitter.github.io/finatra
Support: GitHub Code Repository
Developer: Twitter, Inc.
License: Apache License 2.0

Finatra is written in Scala. Learn Scala with our recommended free books and free tutorials.


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UdashScala framework for building beautiful and maintainable web applications
SkinnyFull-stack web app framework to build Servlet applications

Read our verdict in the software roundup.


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