Struct MetricLabels 

pub struct MetricLabels {
    pub scheme: &'static str,
    pub namespace: Arc<str>,
    pub root: Arc<str>,
    pub operation: &'static str,
    pub error: Option<ErrorKind>,
    pub status_code: Option<StatusCode>,
    pub service_operation: Option<&'static str>,
}

MetricLabels are the labels for the metrics.

scheme, namespace, and root always come from the final service stack’s [ServiceInfo]. HTTP requests only provide request-level labels such as [Operation] and [ServiceOperation] through extensions.

Fields

scheme: &'static str

The storage scheme identifier (e.g., “s3”, “gcs”, “azblob”, “fs”). Used to differentiate between different storage backends.

namespace: Arc<str>

The storage namespace (e.g., bucket name, container name). Identifies the specific storage container being accessed.

root: Arc<str>

The root path within the namespace that was configured. Used to track operations within a specific path prefix.

operation: &'static str

The operation being performed (e.g., “read”, “write”, “list”). Identifies which API operation generated this metric.

error: Option<ErrorKind>

The specific error kind that occurred during an operation. Only populated for OperationErrorsTotal metric. Used to track frequency of specific error types.

status_code: Option<StatusCode>

The HTTP status code received in an error response. Only populated for HttpStatusErrorsTotal metric. Used to track frequency of specific HTTP error status codes.

service_operation: Option<&'static str>

The service-specific operation name as an optional supplement for operation name.

Trait Implementations

impl Clone for MetricLabels

fn clone(&self) -> MetricLabels

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetricLabels

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MetricLabels

fn default() -> MetricLabels

Returns the “default value” for a type.

impl Hash for MetricLabels

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MetricLabels

fn eq(&self, other: &MetricLabels) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for MetricLabels

impl StructuralPartialEq for MetricLabels