-- This file has been generated from package.yaml by hpack version 0.20.0.
--
-- see: https://github.com/sol/hpack
--
-- hash: 54ecbff1eaa2b7aadf2870516b4db0aeb56c9671f79120584006de5903dbff75

name:           postgresql-simple-queue
version:        1.0.1
synopsis:       A PostgreSQL backed queue
description:    This module utilize PostgreSQL to implement a durable queue for efficently processing arbitrary payloads which can be represented as JSON.
                .
                Typically a producer would enqueue a new payload as part of larger database
                transaction
                .
                >  createAccount userRecord = do
                >     'runDBTSerializable' $ do
                >        createUserDB userRecord
                >        'enqueueDB' "queue_schema" $ makeVerificationEmail userRecord
                .
                In another thread or process, the consumer would drain the queue.
                .
                >   forever $ do
                >     -- Attempt get a payload or block until one is available
                >     payload <- lock "queue" conn
                >
                >     -- Perform application specifc parsing of the payload value
                >     case fromJSON $ pValue payload of
                >       Success x -> sendEmail x -- Perform application specific processing
                >       Error err -> logErr err
                >
                >     -- Remove the payload from future processing
                >     dequeue "queue" conn $ pId payload
                >
                > To support multiple queues in the same database, the API expects a table name string
                > to determine which queue tables to use.
category:       Web
homepage:       https://github.com/jfischoff/postgresql-queue#readme
bug-reports:    https://github.com/jfischoff/postgresql-queue/issues
author:         Jonathan Fischoff
maintainer:     jonathangfischoff@gmail.com
copyright:      2017 Jonathan Fischoff
license:        BSD3
license-file:   LICENSE
build-type:     Simple
cabal-version:  >= 1.10

extra-source-files:
    README.md

source-repository head
  type: git
  location: https://github.com/jfischoff/postgresql-queue

library
  hs-source-dirs:
      src
  ghc-options: -Wall -Wno-unused-do-bind
  build-depends:
      aeson
    , base >=4.7 && <5
    , bytestring
    , exceptions
    , monad-control
    , pg-transact
    , postgresql-simple
    , random
    , stm
    , text
    , time
    , transformers
  exposed-modules:
      Database.PostgreSQL.Simple.Queue
      Database.PostgreSQL.Simple.Queue.Migrate
  other-modules:
      Paths_postgresql_simple_queue
  default-language: Haskell2010

test-suite unit-tests
  type: exitcode-stdio-1.0
  main-is: Spec.hs
  hs-source-dirs:
      test
  ghc-options: -Wall -Wno-unused-do-bind -O2 -threaded -rtsopts -with-rtsopts=-N
  build-depends:
      aeson
    , async
    , base >=4.7 && <5
    , bytestring
    , exceptions
    , hspec
    , hspec-discover
    , hspec-expectations-lifted
    , hspec-pg-transact
    , monad-control
    , pg-transact
    , postgresql-simple
    , postgresql-simple-queue
    , random
    , split
    , stm
    , text
    , time
    , transformers
  other-modules:
      Database.PostgreSQL.Simple.QueueSpec
      Paths_postgresql_simple_queue
  default-language: Haskell2010