Oihana Php Enums

ObservabilityHeaderTrait

Observability / tracing HTTP header names.

SERVER_TIMING : string = 'Server-Timing': `Server-Timing` — Server-side performance metrics for the response (W3C).
TIMING_ALLOW_ORIGIN : string = 'Timing-Allow-Origin': `Timing-Allow-Origin` — Origins allowed to read detailed Resource Timing data (W3C).
TRACEPARENT : string = 'traceparent': `traceparent` — W3C Trace Context: incoming trace and parent span identifiers.
TRACESTATE : string = 'tracestate': `tracestate` — W3C Trace Context: vendor-specific trace state.
X_CORRELATION_ID : string = 'X-Correlation-Id': `X-Correlation-Id` — Correlates requests across services (de-facto).
X_REQUEST_ID : string = 'X-Request-Id': `X-Request-Id` — Unique identifier of the request (de-facto).
X_RESPONSE_TIME : string = 'X-Response-Time': `X-Response-Time` — Time taken to produce the response (de-facto, Express/Koa).

`Server-Timing` — Server-side performance metrics for the response (W3C).


    public
        string
    SERVER_TIMING
    = 'Server-Timing'

`Timing-Allow-Origin` — Origins allowed to read detailed Resource Timing data (W3C).


    public
        string
    TIMING_ALLOW_ORIGIN
    = 'Timing-Allow-Origin'

`traceparent` — W3C Trace Context: incoming trace and parent span identifiers.


    public
        string
    TRACEPARENT
    = 'traceparent'

`tracestate` — W3C Trace Context: vendor-specific trace state.


    public
        string
    TRACESTATE
    = 'tracestate'

`X-Correlation-Id` — Correlates requests across services (de-facto).


    public
        string
    X_CORRELATION_ID
    = 'X-Correlation-Id'

`X-Request-Id` — Unique identifier of the request (de-facto).


    public
        string
    X_REQUEST_ID
    = 'X-Request-Id'

`X-Response-Time` — Time taken to produce the response (de-facto, Express/Koa).


    public
        string
    X_RESPONSE_TIME
    = 'X-Response-Time'