github.com/newrelic/newrelic-client-go@v1.1.0/pkg/apm/example_labels_test.go (about)

     1  package apm
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  	"os"
     7  
     8  	"github.com/newrelic/newrelic-client-go/pkg/config"
     9  )
    10  
    11  func Example_labels() {
    12  	// Initialize the client configuration. A Personal API key is required to
    13  	// communicate with the backend API.
    14  	cfg := config.New()
    15  	cfg.PersonalAPIKey = os.Getenv("NEW_RELIC_API_KEY")
    16  
    17  	// Initialize the client.
    18  	client := New(cfg)
    19  
    20  	// Get an APM application by ID.
    21  	app, err := client.GetApplication(12345678)
    22  	if err != nil {
    23  		log.Fatal("error getting application:", err)
    24  	}
    25  
    26  	// List the existing labels for this account.
    27  	labels, err := client.ListLabels()
    28  	if err != nil {
    29  		log.Fatal("error listing labels:", err)
    30  	}
    31  
    32  	// Output the concatenated label key and associated application IDs for each.
    33  	for _, l := range labels {
    34  		fmt.Printf("Label key: %s, Application IDs: %v\n", l.Key, l.Links.Applications)
    35  	}
    36  
    37  	// Add a label to the application that describes its data center's location.
    38  	label := Label{
    39  		Category: "Datacenter",
    40  		Name:     "East",
    41  		Links: LabelLinks{
    42  			Applications: []int{app.ID},
    43  		},
    44  	}
    45  
    46  	l, err := client.CreateLabel(label)
    47  	if err != nil {
    48  		log.Fatal("error creating label:", err)
    49  	}
    50  
    51  	// Delete a label from all linked applications and servers.
    52  	_, err = client.DeleteLabel(l.Key)
    53  	if err != nil {
    54  		log.Fatal("error deleting label:", err)
    55  	}
    56  }