Hydra Framework
An all-in-one framework for writing Haskell apps which use the following features out of the box:
- Multithreading
- Safe STM-powered concurrency
- KV DB functionality (Redis & RocksDB backends supported)
- SQL DB functionality (beam incorporated, SQLite supported, PG & MySQL possible)
- Logging
- Random data generation
- Many others
With the framework, you can create complex applications that have a good maintainability, testability, simplicity, that have a good structure and are easy to read and change. The key principles in the framework:
- Layered architecture
- Separation of Subsystem Interfaces, Business Logic, Runtime and Implementation
- Convenient and simple to use eDSLs for Business Logic
- Layered structure of business application: State, Domain, Business Logic
The Hydra Project
This project demonstrates the principles of Software Design and Architecture in pure Functional Programming. It provides a framework implemented with several different approaches for easy comparison:
- Final Tagless
- Free Monad
- Church Encoded Free Monad
The project is a showcase for my book Functional Design and Architecture
Additional materials describing these ideas: