Scalatra

Scalatra

Original author(s)	Scalatra contributors
Initial release	Script error: No such module "Date time".
Stable release	2.8.1 / September 25, 2021; 4 years ago (2021-09-25)[1]
Repository	Scalatra Repository
Operating system	Cross-platform
Available in	Scala
Type	Web application framework
License	BSD
Website	scalatra.org

Scalatra is a free and open source web application framework written in Scala.^[2] It is a port of the Sinatra framework written in Ruby. Scalatra is an alternative to the Lift, Play!, and Unfiltered frameworks.

Scalatra is an example of a microframework, a web software development framework which attempts to be as minimal as possible.

A full Scalatra application can be written in very few lines of code:

package org.example.app

import org.scalatra._

class MyScalatraFilter extends ScalatraFilter {

  get("/hello/:name") {
    <h1>Hello, {params("name")}</h1>
  }
}

From this tiny domain-specific language, Scalatra can be expanded into a minimal but full-featured model-view-controller web framework. For example, additional libraries can be attached in order to provide templating, object-relational mapping, and unit testing or behaviour driven development support.

• LinkedIn used Scalatra to power its now-defunct^[3] Signal API.^[4]
• Parts of The Guardian 's API services are built in Scalatra.^[5]
• http://gov.uk has built its API systems using Scalatra.^[6]

• Scalatra's GitHub repository
• InfoQ article on Scalatra

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