Sidekiq compatible background workers in golang.
- reliable queueing for all queues using brpoplpush
- handles retries
- support custom middleware
- customize concurrency per queue
- responds to Unix signals to safely wait for jobs to finish before exiting.
- provides stats on what jobs are currently running
- well tested
Example usage:
package main
import (
"github.com/jrallison/go-workers"
)
func myJob(message *workers.Msg) {
// do something with your message
// message.Jid()
// message.Args() is a wrapper around go-simplejson (http://godoc.org/github.com/bitly/go-simplejson)
}
type myMiddleware struct{}
func (r *myMiddleware) Call(queue string, message *workers.Msg, next func() bool) (acknowledge bool) {
// do something before each message is processed
acknowledge = next()
// do something after each message is processed
return
}
func main() {
workers.Configure(map[string]string{
// location of redis instance
"server": "localhost:6379",
// instance of the database
"database": "0",
// number of connections to keep open with redis
"pool": "30",
// unique process id for this instance of workers (for proper recovery of inprogress jobs on crash)
"process": "1",
})
workers.Middleware.Append(&myMiddleware{})
// pull messages from "myqueue" with concurrency of 10
workers.Process("myqueue", myJob, 10)
// pull messages from "myqueue2" with concurrency of 20
workers.Process("myqueue2", myJob, 20)
// Add a job to a queue
workers.Enqueue("myqueue3", "Add", []int{1, 2})
// Add a job to a queue with retry
workers.EnqueueWithOptions("myqueue3", "Add", []int{1, 2}, workers.EnqueueOptions{Retry: true})
// stats will be available at http://localhost:8080/stats
go workers.StatsServer(8080)
// Blocks until process is told to exit via unix signal
workers.Run()
}Initial development sponsored by Customer.io