faktory-1.1.2.5: examples/consumer/Main.hs

module Main (main) where

import Prelude

import Control.Exception.Safe
import Data.Aeson
import Faktory.Worker
import GHC.Generics

-- | Must match examples/producer
newtype Job = Job {jobMessage :: String}
  deriving stock (Generic)
  deriving anyclass (FromJSON)

main :: IO ()
main = do
  putStrLn "Starting consumer loop"
  runWorkerEnv $ \job -> do
    let message = jobMessage $ jobArg job

    if message == "BOOM"
      then throwString "Producer exception: BOOM"
      else putStrLn message