/
main.go
81 lines (68 loc) · 1.91 KB
/
main.go
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package main
import (
"log"
"net/http"
"time"
"github.com/go-redis/redis"
"github.com/gorilla/mux"
"github.com/streadway/amqp"
)
const queueName string = "jobQueue"
const hostString string = "127.0.0.1:8000"
func handleError(err error, msg string) {
if err != nil {
log.Fatalf("%s: %s", msg, err)
}
}
func getServer(name string) JobServer {
/*
Creates a server object and initiates
the Channel and Queue details to publish messages
*/
conn, err := amqp.Dial("amqp://guest:guest@localhost:5672/")
handleError(err, "Dialing failed to RabbitMQ broker")
channel, err := conn.Channel()
handleError(err, "Fetching channel failed")
jobQueue, err := channel.QueueDeclare(
name, // Name of the queue
false, // Message is persisted or not
false, // Delete message when unused
false, // Exclusive
false, // No Waiting time
nil, // Extra args
)
handleError(err, "Job queue creation failed")
return JobServer{Conn: conn, Channel: channel, Queue: jobQueue}
}
func main() {
jobServer := getServer(queueName)
jobServer.redisClient = redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
// Start Workers
go func(conn *amqp.Connection) {
workerProcess := Workers{
conn: jobServer.Conn,
}
workerProcess.run()
}(jobServer.Conn)
router := mux.NewRouter()
// Attach handlers
router.HandleFunc("/job/database", jobServer.asyncDBHandler)
router.HandleFunc("/job/mail", jobServer.asyncMailHandler)
router.HandleFunc("/job/callback", jobServer.asyncCallbackHandler)
router.HandleFunc("/job/status", jobServer.statusHandler)
httpServer := &http.Server{
Handler: router,
Addr: hostString,
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
}
// Run HTTP server
log.Fatal(httpServer.ListenAndServe())
// Cleanup resources
defer jobServer.Channel.Close()
defer jobServer.Conn.Close()
}