Go SDK

go get github.com/apache/iggy/foreign/go

package main

import (
	"context"
	"errors"
	"log"

	"github.com/apache/iggy/foreign/go/client"
	"github.com/apache/iggy/foreign/go/client/tcp"
	iggcon "github.com/apache/iggy/foreign/go/contracts"
	ierror "github.com/apache/iggy/foreign/go/errors"
)

func main() {
	cli, err := client.NewIggyClient(
		client.WithTcp(tcp.WithServerAddress("127.0.0.1:8090")),
	)
	if err != nil {
		log.Fatal(err)
	}
	defer func() {
		if err := cli.Close(); err != nil {
			log.Printf("Error closing client: %v", err)
		}
	}()

	ctx := context.Background()
	if err := cli.Connect(ctx); err != nil {
		log.Fatal(err)
	}

	if _, err := cli.LoginUser(ctx, "iggy", "iggy"); err != nil {
		log.Fatal(err)
	}

	// Re-running this example is fine: an existing stream or topic is not an error.
	if _, err := cli.CreateStream(ctx, "sample-stream"); err != nil &&
		!errors.Is(err, ierror.ErrStreamNameAlreadyExists) {
		log.Fatal(err)
	}

	streamId, err := iggcon.NewIdentifier("sample-stream")
	if err != nil {
		log.Fatal(err)
	}

	if _, err := cli.CreateTopic(
		ctx,
		streamId,
		"sample-topic",
		1,
		iggcon.CompressionAlgorithmNone,
		iggcon.IggyExpiryNeverExpire,
		0,
		nil,
	); err != nil && !errors.Is(err, ierror.ErrTopicNameAlreadyExists) {
		log.Fatal(err)
	}

	topicId, err := iggcon.NewIdentifier("sample-topic")
	if err != nil {
		log.Fatal(err)
	}

	message, err := iggcon.NewIggyMessage([]byte("Hello from Go!"))
	if err != nil {
		log.Fatal(err)
	}

	if err := cli.SendMessages(
		ctx,
		streamId,
		topicId,
		iggcon.None(),
		[]iggcon.IggyMessage{message},
	); err != nil {
		log.Fatal(err)
	}

	log.Println("Message sent")
}