Scala Server Toolkit

This project is a culmination of years of Scala development at Avast and tries to represent the best practices of Scala server development we have gained together with tools that allow us to be effective. It is a set of small, flexible and cohesive building blocks that fit together well and allow you to build reliable server applications.

Jump Right In

You can use the official Giter8 template to get started:

sbt new avast/sst-seed.g8

Documentation

Read it here or you can deep dive into example code.

Articles

• Introducing Scala Server Toolkit (Avast Engineering)
• SST - Creating HTTP Server (Avast Engineering)

Talks

• Intro to Scala Server Toolkit (Functional JVM Meetup, Prague, January 23, 2020)
  • slides
• Scala Server Toolkit: How to Write FP Microservice Step-by-step (LambdaConf 2020 Global Edition, online, June 23, 2020)
  • slides

Design

There are certain design decisions and constraints that are put in place to guide the development of the toolkit and recommended for the development of your server applications.

• Keep the number of dependencies as low as possible.
• Modular design: small, cohesive, orthogonal and composable components.
• Functional programming.
• Type safe configuration and resource lifecycle.
• No need for dependency injection.
• Scalazzi Safe Scala Subset

Issues

Please report issues to GitHub. Pull requests are always welcome.

Versioning

The project follows the semantic versioning schema which means that just by looking at the version you will know whether to expect compatibility problems or not.

The project values backwards compatibility but it cannot prevent innovation. There will be breaking changes but they will always be properly versioned and documented.

Contributing

See CONTRIBUTING.md.

Code of Conduct

See CODE_OF_CONDUCT.md.

License

Scala Server Toolkit is licensed under MIT License.