Initialize Pulsar Go client

To interact with Pulsar, you need a Client object first.

You can create a client object using the NewClient function, passing in a ClientOptions object.

Here's an example:

import (
    "log"
    "time"

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

func main() {
    client, err := pulsar.NewClient(pulsar.ClientOptions{
        URL:               "pulsar://localhost:6650",
        OperationTimeout:  30 * time.Second,
        ConnectionTimeout: 30 * time.Second,
    })
    if err != nil {
        log.Fatalf("Could not instantiate Pulsar client: %v", err)
    }

    defer client.Close()
}

If you have multiple brokers, you can initiate a client object as below.

import (
    "log"
    "time"
    "github.com/apache/pulsar-client-go/pulsar"
)

func main() {
    client, err := pulsar.NewClient(pulsar.ClientOptions{
        URL: "pulsar://localhost:6650,localhost:6651,localhost:6652",
        OperationTimeout:  30 * time.Second,
        ConnectionTimeout: 30 * time.Second,
    })
    if err != nil {
        log.Fatalf("Could not instantiate Pulsar client: %v", err)
    }

    defer client.Close()
}

For all configurable parameters, see ClientOptions.