Arbiter.Orville.MonadArbiter

Orville primitives for writing a custom MonadArbiter instance.

Handlers run in the application monad on Orville's own connection:

import Arbiter.Core qualified as Arb
import Arbiter.Orville qualified as ArbO

instance Arb.MonadArbiter MyApp where
  type RegistryOf MyApp = MyRegistry
  type Handler MyApp job result = job -> MyApp result
  getSchema                = asks appSchema
  executeQuery             = ArbO.orvilleExecuteQuery
  executeStatement         = ArbO.orvilleExecuteStatement
  withDbTransaction        = ArbO.orvilleWithDbTransaction
  runHandlerWithConnection = ArbO.orvilleRunHandlerWithConnection
  getListener              = asks appListener

The primitives also need a MonadOrville MyApp instance.

Write a handler's own signature as JobHandler MyApp MyPayload MyResult, which is Handler at that queue's job and declared result types.