Global Attributes

Attach contextual metadata to every span and log the SDK emits.

Automatic Attributes

The SDK automatically attaches the following resource attributes to all telemetry — no configuration needed:

Device

Attribute	Description	Example
device.model.identifier	Hardware model string	"iPhone16,1"
device.model.name	Human-readable model name	"iPhone 15 Pro"
device.manufacturer	Always "Apple"	"Apple"

OS

Attribute	Description	Example
os.name	Always "iOS"	"iOS"
os.version	OS version	"17.4"
os.type	Always "darwin"	"darwin"

App / Service

Attribute	Description	Example
service.name	App bundle display name	"MyApp"
service.version	App version string	"2.1.0"
app.build_id	CFBundleVersion	"42"

Session

Attribute	Description	Example
session.id	Current session identifier	"f40364c92b85ec0c19c35a65be42b97f"

Network (when includeNetworkAttributes is enabled)

Attribute	Description	Example
network.connection.type	Connection type	"wifi", "cell", "unavailable"
network.connection.subtype	Cellular subtype	"lte", "nr"

Can be disabled via configuration.

Screen (when includeScreenAttributes is enabled)

Attribute	Description	Example
screen.name	Current UIViewController class name	"HomeViewController"

Can be disabled via configuration.

Custom Global Attributes

Pass key/value pairs in globalAttributes to attach your own metadata to every span and log. Supported value types:

Type	Swift value
String	AttributeValue.string("value")
Int	AttributeValue.int(42)
Double	AttributeValue.double(1.5)
Bool	AttributeValue.bool(true)
Array	AttributeValue.array(AttributeArray(values: [...]))

Pulse.shared.initialize(

    apiKey: "your-api-key",
    dataCollectionState: .allowed,
    globalAttributes: [
        "environment":   AttributeValue.string("production"),
        "app.version":   AttributeValue.string("2.1.0"),
        "app.build":     AttributeValue.int(123),
        "app.is_debug":  AttributeValue.bool(false),
        "feature.flags": AttributeValue.array(AttributeArray(values: [
            AttributeValue.string("dark_mode"),
            AttributeValue.string("new_checkout"),
        ])),
    ]
)

Custom global attributes are injected when includeGlobalAttributes is true (the default). Disable via:

configuration: { config in
    config.disableGlobalAttributes()
}

Next Steps

• Data Collection Consent — Gate collection behind user consent
• API Reference — Browse all public methods