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// Copyright 2020 New Relic Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package nrnats
import (
"fmt"
"time"
"github.com/nats-io/nats.go"
"github.com/nats-io/stan.go"
newrelic "github.com/newrelic/go-agent"
)
func currentTransaction() newrelic.Transaction { return nil }
func ExampleStartPublishSegment() {
nc, _ := nats.Connect(nats.DefaultURL)
txn := currentTransaction()
subject := "testing.subject"
// Start the Publish segment
seg := StartPublishSegment(txn, nc, subject)
err := nc.Publish(subject, []byte("Hello World"))
if nil != err {
panic(err)
}
// Manually end the segment
seg.End()
}
func ExampleStartPublishSegment_defer() {
nc, _ := nats.Connect(nats.DefaultURL)
txn := currentTransaction()
subject := "testing.subject"
// Start the Publish segment and defer End till the func returns
defer StartPublishSegment(txn, nc, subject).End()
m, err := nc.Request(subject, []byte("request"), time.Second)
if nil != err {
panic(err)
}
fmt.Println("Received reply message:", string(m.Data))
}
var clusterID, clientID string
// StartPublishSegment can be used with a NATS Streamming Connection as well
// (https://github.com/nats-io/stan.go). Use the `NatsConn()` method on the
// `stan.Conn` interface (https://godoc.org/github.com/nats-io/stan#Conn) to
// access the `nats.Conn` object.
func ExampleStartPublishSegment_stan() {
sc, _ := stan.Connect(clusterID, clientID)
txn := currentTransaction()
subject := "testing.subject"
defer StartPublishSegment(txn, sc.NatsConn(), subject).End()
sc.Publish(subject, []byte("Hello World"))
}
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