[ANN] Haskell client for Event Store

EventStoreDB
1

Hi,

I’d like to announce my Event Store TCP client written in Haskell. It licensed under BSD3.
You can find the source on Github. Package is available on Hackage.

Here’s a list of supported features:

  • Single event writes.

  • Batch writes.

  • Transactional writes.

  • Stream deletion.

  • Single event reads.

  • Range reads from regular streams and from $all stream (backward and forward).

  • Volatile subscriptions (regular stream and $all).

  • Catch-up subscriptions (regular stream and $all).

  • Authenticated connection.
    Will be implemented:

  • Persistent subscriptions.

  • SSL connection.

Please tell me if I missed some other important features. I originally wrote that library because I need it for a real project,
so it will be maintained. I only implemented features I need first. Feel free to open a ticket (or better a pull request) on Github for something you need or a bug you’ve experienced. I’ll be as fast as I can.

Few notes on the code itself. This implementation uses a Functional Reactive Programming (FRP) library named Sodium. Connection bookkeeping (operation and subscription management for instance)
was amazingly easy to implement with it.

I only tested that library with EventStore 3.0.1.

Hope you enjoy it.

Regards,

Yorick

2

Very cool!