Haskell API prototype

What is this?

This is my research into the world of Haskell. Specicificly how to build modern applications (architectures) with Haskell, functional style. Topics will include, but not limited to:

• restful API
• domain driven design
• CQRS / event sourcing
• specification by example
• and so on ...

This repository is (currently) merely a recording of my progress.

What's done? and what's next?

• lightweight abstraction on top of WAI, as a micro Restful library
• auto-generate API based op OpenAPI v3 spec
• validate url + query parameters
• validate json body, based on OpenAPI v3 spec
• transform body to transfer objects (for both product and sum types)
• comprehensive validation DSL (json body, url + query parameters)
• strong typed error messages (human + machine interpretable), includes JSON path for Request Body error messages
• JWT authorization / authentication, role based with JWK validation
• "auto wire" transfer objects to commands
• command handlers, sagas, process managers
• aggregates, state, persistence
• event, event handlers
• ... more to come

Use or improve?

Sure, just shoot me a message.