forked from Jimdo/sqs-dead-letter-handling
/
main.go
126 lines (100 loc) · 3.37 KB
/
main.go
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package main // import "github.com/Jimdo/sqs-dead-letter-requeue"
import (
"log"
"os"
"strconv"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/sqs"
"gopkg.in/alecthomas/kingpin.v1"
)
var (
app = kingpin.New("dead-letter-requeue", "Requeues messages from a SQS dead-letter queue to the active one.")
queueName = app.Arg("destination-queue-name", "Name of the destination SQS queue (e.g. prod-mgmt-website-data-www100-jimdo-com).").Required().String()
fromQueueName = app.Flag("source-queue-name", "Name of the source SQS queue (e.g. prod-mgmt-website-data-www100-jimdo-com-dead-letter).").String()
accountID = app.Flag("account-id", "AWS account ID. (e.g. 123456789)").String()
)
func getQueueUrlnput(queueName *string, accountID *string) *sqs.GetQueueUrlInput {
var getQueueURLInput sqs.GetQueueUrlInput
if *accountID != "" {
getQueueURLInput = sqs.GetQueueUrlInput{QueueName: queueName, QueueOwnerAWSAccountId: accountID}
} else {
getQueueURLInput = sqs.GetQueueUrlInput{QueueName: queueName}
}
return &getQueueURLInput
}
func main() {
kingpin.MustParse(app.Parse(os.Args[1:]))
destinationQueueName := *queueName
var sourceQueueName string
if *fromQueueName != "" {
sourceQueueName = *fromQueueName
} else {
sourceQueueName = destinationQueueName + "_dead_letter"
}
sess, err := session.NewSession()
if err != nil {
log.Fatal(err)
return
}
conn := sqs.New(sess)
sourceQueueURL, err := conn.GetQueueUrl(getQueueUrlnput(&sourceQueueName, accountID))
if err != nil {
log.Fatal(err)
return
}
destinationQueueURL, err := conn.GetQueueUrl(getQueueUrlnput(&destinationQueueName, accountID))
if err != nil {
log.Fatal(err)
return
}
log.Printf("Looking for messages to requeue.")
for {
waitTimeSeconds := int64(20)
maxNumberOfMessages := int64(10)
visibilityTimeout := int64(20)
resp, err := conn.ReceiveMessage(&sqs.ReceiveMessageInput{
WaitTimeSeconds: &waitTimeSeconds,
MaxNumberOfMessages: &maxNumberOfMessages,
VisibilityTimeout: &visibilityTimeout,
QueueUrl: sourceQueueURL.QueueUrl})
if err != nil {
log.Fatal(err)
return
}
messages := resp.Messages
numberOfMessages := len(messages)
if numberOfMessages == 0 {
log.Printf("Requeuing messages done.")
return
}
log.Printf("Moving %v message(s)...", numberOfMessages)
var sendMessageBatchRequestEntries []*sqs.SendMessageBatchRequestEntry
for index, element := range messages {
i := strconv.Itoa(index)
sendMessageBatchRequestEntries = append(sendMessageBatchRequestEntries, &sqs.SendMessageBatchRequestEntry{
Id: &i,
MessageBody: element.Body})
}
_, err = conn.SendMessageBatch(&sqs.SendMessageBatchInput{
Entries: sendMessageBatchRequestEntries,
QueueUrl: destinationQueueURL.QueueUrl})
if err != nil {
log.Fatal(err)
return
}
var deleteMessageBatchRequestEntries []*sqs.DeleteMessageBatchRequestEntry
for index, element := range messages {
i := strconv.Itoa(index)
deleteMessageBatchRequestEntries = append(deleteMessageBatchRequestEntries, &sqs.DeleteMessageBatchRequestEntry{
Id: &i,
ReceiptHandle: element.ReceiptHandle})
}
_, err = conn.DeleteMessageBatch(&sqs.DeleteMessageBatchInput{
Entries: deleteMessageBatchRequestEntries,
QueueUrl: sourceQueueURL.QueueUrl})
if err != nil {
log.Fatal(err)
return
}
}
}