func main()

in example/trace/http/client/client.go [74:119]

• 40 lines of code
• 6 McCabe index (conditional complexity)

func main() {
	installPropagators()
	shutdown, err := initTracer()
	if err != nil {
		log.Fatal(err)
	}
	defer shutdown()
	tr := otel.Tracer("cloudtrace/example/client")

	client := http.Client{Transport: otelhttp.NewTransport(http.DefaultTransport)}
	member, err := baggage.NewMember("username", "donuts")
	if err != nil {
		panic(err)
	}
	b, err := baggage.New(member)
	if err != nil {
		panic(err)
	}
	ctx := baggage.ContextWithBaggage(context.Background(), b)
	var body []byte

	err = func(ctx context.Context) error {
		ctx, span := tr.Start(ctx, "say hello", trace.WithAttributes(semconv.PeerServiceKey.String("ExampleService")))
		defer span.End()
		req, _ := http.NewRequestWithContext(ctx, "GET", "http://localhost:7777/hello", nil)

		fmt.Printf("Sending request...\n")
		var res *http.Response
		res, err = client.Do(req)
		if err != nil {
			panic(err)
		}
		body, err = io.ReadAll(res.Body)
		_ = res.Body.Close()
		span.SetStatus(codes.Ok, "")

		return err
	}(ctx)

	if err != nil {
		panic(err)
	}

	fmt.Printf("Response Received: %s\n\n\n", body)
	fmt.Printf("Waiting to export spans ...\n\n")
}