Function opentelemetry::global::get_text_map_propagator

pub fn get_text_map_propagator<T, F>(f: F) -> T where
    F: FnMut(&dyn TextMapPropagator) -> T, 

Executes a closure with a reference to the current global TextMapPropagator propagator.

Examples

use opentelemetry::{propagation::TextMapPropagator, global};
use opentelemetry::sdk::propagation::TraceContextPropagator;
use std::collections::HashMap;

let example_carrier = HashMap::new();

// create your text map propagator
let tc_propagator = TraceContextPropagator::new();
global::set_text_map_propagator(tc_propagator);

// use the global text map propagator to extract contexts
let _cx = global::get_text_map_propagator(|propagator| propagator.extract(&example_carrier));