Struct HeaderInjector

pub struct HeaderInjector<'a>(pub &'a mut HeaderMap);

HTTP header injector for OpenTelemetry context propagation.

This struct implements the Injector trait to inject OpenTelemetry trace context into HTTP headers. It wraps an HTTP header map and provides the necessary interface for propagators to inject trace context information.

Usage

Typically used internally by propagation functions, but can be used directly:

use http::HeaderMap;
use telemetry_rust::http::HeaderInjector;

let mut headers = HeaderMap::new();
let mut injector = HeaderInjector(&mut headers);
// Use with OpenTelemetry propagators...

Tuple Fields

0: &'a mut HeaderMap

Trait Implementations

impl Injector for HeaderInjector<'_>

fn set(&mut self, key: &str, value: String)

Set a key and value in the HeaderMap. Does nothing if the key or value are not valid inputs.