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AzServiceBus.go
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AzServiceBus.go
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package main
import (
"bytes"
"context"
"encoding/json"
"errors"
"io/ioutil"
"log"
"net/http"
"time"
servicebus "github.com/Azure/azure-service-bus-go"
)
func main() {
// Run forever
for {
SubscribeToServiceBus()
}
}
var sbName = "Endpoint=sb://************.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=***********************"
var qName = "queue-name"
func SubscribeToServiceBus() {
const concurrentNum = 3
msgChan := make(chan *servicebus.Message, concurrentNum)
// Define a function that should be executed when a message is received.
var concurrentHandler servicebus.HandlerFunc = func(ctx context.Context, msg *servicebus.Message) error {
msgChan <- msg
return nil
}
// Define msg workers
for i := 0; i < concurrentNum; i++ {
go func() {
for msg := range msgChan {
ctx, cancel := context.WithTimeout(context.Background(), 300*time.Millisecond)
defer cancel()
fmt.Print(string(msg.Data))
//if ok := Process(msg); ok {
// msg.Complete(ctx)
//} else {
// msg.Abandon(ctx)
//}
}
}()
}
// Instantiate the clients needed to communicate with a Service Bus Queue.
ns, err := servicebus.NewNamespace(servicebus.NamespaceWithConnectionString(sbName))
if err != nil {
return
}
// Define a context to limit how long we will block to receive messages, then start serving our function.
// Init queue client with prefetch count
client, err := ns.NewQueue(qName, servicebus.QueueWithPrefetchCount(concurrentNum))
if err != nil {
close(msgChan)
return
}
// Define a context to limit how long we will block to receive messages, then start serving our function.
ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
defer cancel()
if err := client.Receive(ctx, concurrentHandler); err != nil {
log.Println("Info: ", err)
}
// Close the message chan
close(msgChan)
}