Trait ApiMetricsBackend 

pub trait ApiMetricsBackend:
    Send
    + Sync
    + Debug {
    // Provided methods
    fn record_request(
        &self,
        _transport: Transport,
        _method: &str,
        _path: &str,
        _status: u16,
        _duration_ms: u64,
    ) { ... }
    fn record_in_flight_delta(&self, _transport: Transport, _delta: i64) { ... }
}

Receives API request lifecycle metrics.

Labels

Value	HTTP	gRPC
method	Method such as GET	RPC name such as CreateTask
path	Matched route template	Full service and RPC path
status	Numeric HTTP status	Numeric tonic status code
transport	Transport::Http	Transport::Grpc

record_request is called after normal completion or stream termination. It is not called when a request future or stream is dropped first. The in-flight decrement still occurs on drop.

Provided Methods

fn record_request( &self, _transport: Transport, _method: &str, _path: &str, _status: u16, _duration_ms: u64, )

Records one completed request or terminated stream.

fn record_in_flight_delta(&self, _transport: Transport, _delta: i64)

Adjusts the in-flight gauge.

Entry uses 1. Completion, failure, cancellation, and drop use -1.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl ApiMetricsBackend for NoOpApiMetrics