/
emitter.go
58 lines (49 loc) · 1.19 KB
/
emitter.go
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package sqs
import (
"encoding/json"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/sqs"
"github.com/ncolesummers/microservice-example/lib/msgqueue"
)
type SQSEmitter struct {
sqsSvc *sqs.SQS
QueueUrl *string
}
func NewSQSEventEmitter(s *session.Session, queueName string) (emitter msgqueue.EventEmitter, err error) {
if s == nil {
s, err = session.NewSession()
if err != nil {
return nil, err
}
}
svc := sqs.New(s)
QUResult, err := svc.GetQueueUrl(&sqs.GetQueueUrlInput{
QueueName: aws.String(queueName),
})
if err != nil {
return
}
emitter = &SQSEmitter{
sqsSvc: svc,
QueueUrl: QUResult.QueueUrl,
}
return emitter, err
}
func (sqsEmit *SQSEmitter) Emit(event msgqueue.Event) error {
data, err := json.Marshal(event)
if err != nil {
return err
}
_, err = sqsEmit.sqsSvc.SendMessage(&sqs.SendMessageInput{
MessageAttributes: map[string]*sqs.MessageAttributeValue{
"event_name": &sqs.MessageAttributeValue{
DataType: aws.String("string"),
StringValue: aws.String(event.EventName()),
},
},
MessageBody: aws.String(string(data)),
QueueUrl: sqsEmit.QueueUrl,
})
return err
}