Productivity. Performance. Happiness.

Amber makes building web applications fast, simple, and enjoyable - with fewer bugs and blazing fast performance.

Welcome to Amber

Amber is a web application framework written in Crystal inspired by Kemal, Rails, Phoenix and other popular application frameworks.

The purpose of Amber is not to create yet another framework, but to take advantage of the beautiful Crystal language capabilities and provide engineers and the Crystal community with an efficient, cohesive, well maintained web framework that embraces the language philosophies, conventions, and guidelines.

Amber borrows concepts that have already been battle tested and successful, and embraces new concepts through team and community collaboration and analysis, which also aligns with Crystal's philosophy.

Community

Questions? Join our Discord.

Guidelines? We have adopted the Contributor Covenant to be our CODE OF CONDUCT for Amber.

Our Philosophy? Read Amber Philosophy H.R.T.

Documentation

Read Amber documentation on https://docs.amberframework.org/amber

Benchmarks

Techempower Framework Benchmarks - Round 18 (2019-07-09)

• Filtered by Full Stack, Full ORM, Mysql or Pg for comparing similar frameworks.

Installation & Usage

Homebrew (macOS/Linux)

brew install amber

Linux

Currently, the only option to install on Linux is from source. At the time of this writing, v1.4.1 is the current stable release, but you should use the most recent tag in place of that.

sudo apt-get install libreadline-dev libsqlite3-dev libpq-dev libmysqlclient-dev libssl-dev libyaml-dev libpcre3-dev libevent-dev
git clone https://github.com/amberframework/amber.git
cd amber
git checkout v1.4.1
shards install
make
sudo make install

If you're using ArchLinux or similar distro try:

yay -S amber

Common

To compile a local bin/amber per project use shards build amber

To use it as dependency, add this to your application's shard.yml:

dependencies:
  amber:
    github: amberframework/amber

Read Amber quick start guide

Read Amber CLI commands usage

Read more about Amber CLI installation guide

Have an Amber-based Project?

Use Amber badge

[![Amber Framework](https://img.shields.io/badge/using-amber_framework-orange.svg)](https://amberframework.org/)

Release Checklist

• Test and release all dependencies
• Test everything locally
• Run crelease 0.36.0
• repoint amber to master branch in src/amber/cli/templates/app/shard.yml.ecr template
• update release notes
• update homebrew version and sha
• update linux repositories
• build and deploy docker image:
  • verify Dockerfile is using the latest crystal version
  • docker login
  • docker build -t amberframework/amber:0.36.0
  • docker push amberframework/amber:0.36.0

Contributing

Contributing to Amber can be a rewarding way to learn, teach, and build experience in just about any skill you can imagine. You don’t have to become a lifelong contributor to enjoy participating in Amber.

Tracking issues? Check our project board.

Code Triage? Join us on codetriage.

Amber is a community effort and we want You to be part of it. Join Amber Community!

1. Fork it https://github.com/amberframework/amber/fork
2. Create your feature branch git checkout -b my-new-feature
3. Write and execute specs and formatting checks ./bin/amber_spec
4. Commit your changes git commit -am 'Add some feature'
5. Push to the branch git push origin my-new-feature
6. Create a new Pull Request

Contributors

• Dru Jensen
• Elias Perez
• Isaac Sloan
• Faustino Aguilar
• Nick Franken
• Mark Siemers
• Robert Carpenter

See more Amber contributors

License

This project is licensed under the MIT License - see the LICENSE file for details

Acknowledgments

• Inspired by Kemal, Rails, Phoenix, and Hanami