rabbitmq-tutorials/go-stream/receive.go
2024-05-09 09:23:06 +02:00

51 lines
1.2 KiB
Go

package main
import (
"bufio"
"fmt"
"github.com/rabbitmq/rabbitmq-stream-go-client/pkg/amqp"
"github.com/rabbitmq/rabbitmq-stream-go-client/pkg/stream"
"os"
)
func CheckErrReceive(err error) {
if err != nil {
fmt.Printf("%s ", err)
os.Exit(1)
}
}
func main() {
env, err := stream.NewEnvironment(
stream.NewEnvironmentOptions().
SetHost("localhost").
SetPort(5552).
SetUser("guest").
SetPassword("guest"))
CheckErrReceive(err)
streamName := "hello-go-stream"
err = env.DeclareStream(streamName,
&stream.StreamOptions{
MaxLengthBytes: stream.ByteCapacity{}.GB(2),
},
)
CheckErrReceive(err)
messagesHandler := func(consumerContext stream.ConsumerContext, message *amqp.Message) {
fmt.Printf("Stream: %s - Received message: %s\n", consumerContext.Consumer.GetStreamName(),
message.Data)
}
consumer, err := env.NewConsumer(streamName, messagesHandler,
stream.NewConsumerOptions().SetOffset(stream.OffsetSpecification{}.First()))
CheckErrReceive(err)
reader := bufio.NewReader(os.Stdin)
fmt.Println(" [x] Waiting for messages. enter to close the consumer")
_, _ = reader.ReadString('\n')
err = consumer.Close()
CheckErrReceive(err)
}