/
sqs.go
104 lines (87 loc) · 2.2 KB
/
sqs.go
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package producer
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/sqs"
"github.com/dotunj/pvent/util"
"github.com/google/uuid"
"sync"
"sync/atomic"
)
type SqsProducer struct {
rate int
svc *sqs.SQS
queueURL *string
wg *sync.WaitGroup
payload []byte
errorCount uint64
successCount uint64
}
type SqsConfig struct {
AccessKeyID string
SecretAccessKey string
Region string
QueueName string
Payload []byte
Rate int
}
func NewSqsProducer(cfg *SqsConfig) (Producer, error) {
sess, err := session.NewSession(&aws.Config{
Region: aws.String(cfg.Region),
Credentials: credentials.NewStaticCredentials(cfg.AccessKeyID, cfg.SecretAccessKey, ""),
})
if err != nil {
fmt.Println("error with initializing session", err)
return nil, err
}
//create a service client
svc := sqs.New(sess)
url, err := svc.GetQueueUrl(&sqs.GetQueueUrlInput{
QueueName: aws.String(cfg.QueueName),
})
if err != nil {
fmt.Println("failed to fetch queue url", err)
return nil, err
}
s := &SqsProducer{
rate: cfg.Rate,
svc: svc,
queueURL: url.QueueUrl,
wg: &sync.WaitGroup{},
payload: cfg.Payload,
}
return s, nil
}
func (s *SqsProducer) Broadcast() error {
fmt.Println(">>> Publishing Message via SQS >>>")
s.wg.Add(s.rate)
for i := 1; i <= s.rate; i++ {
go s.dispatch()
}
s.wg.Wait()
return util.PublishReport(s.rate, s.successCount, s.errorCount)
}
func (s *SqsProducer) dispatch() error {
_, err := s.svc.SendMessage(&sqs.SendMessageInput{
MessageGroupId: aws.String(uuid.NewString()),
MessageDeduplicationId: aws.String(uuid.NewString()),
QueueUrl: s.queueURL,
MessageBody: aws.String(string(s.payload)),
})
defer s.wg.Done()
defer s.handleError()
if err != nil {
fmt.Printf("failed to publish message: %v", err)
atomic.AddUint64(&s.errorCount, 1)
return nil
}
atomic.AddUint64(&s.successCount, 1)
return nil
}
func (s *SqsProducer) handleError() {
if err := recover(); err != nil {
fmt.Printf("error with sqs client: %v", err)
}
}