Monthly Downloads: 7
Programming language: Haskell
License: BSD 3-clause "New" or "Revised" License
Tags: Web PostgreSQL
postgresql-simple-queue alternatives and similar packages
Based on the "postgresql" category.
Alternatively, view postgresql-simple-queue alternatives based on common mentions on social networks and blogs.
postgresql-namedDeserialize PostgreSQL rows to Haskell records by matching column names and record field names
Do you think we are missing an alternative of postgresql-simple-queue or a related project?
This module utilizes 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 $ 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 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 conn $ pId payload
stack install postgresql-simple-queue
This package was discussed in the blog Testing PostgreSQL for Fun