//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
//

package main

import (
	"context"
	"fmt"

	log "github.com/apache/pulsar/pulsar-client-go/logutil"
	"github.com/apache/pulsar/pulsar-client-go/pulsar"
)

func main() {
	client, err := pulsar.NewClient(pulsar.ClientOptions{
		URL:       "pulsar://localhost:6650",
		IOThreads: 5,
	})

	if err != nil {
		log.Fatal(err)
	}

	defer client.Close()

	producer, err := client.CreateProducer(pulsar.ProducerOptions{
		Topic: "my-topic",
	})
	if err != nil {
		log.Fatal(err)
	}

	defer producer.Close()

	ctx := context.Background()

	for i := 0; i < 10; i++ {
		if err := producer.Send(ctx, pulsar.ProducerMessage{
			Payload: []byte(fmt.Sprintf("hello-%d", i)),
		}); err != nil {
			log.Fatal(err)
		}
	}
}
