Struct ContextPropagator 

pub struct ContextPropagator;

Context propagator for middleware integration.

Examples

use pmcp::shared::context::{ContextPropagator, RequestContext};
use pmcp::types::RequestId;
use std::collections::HashMap;

// Extract context from incoming HTTP headers
let mut headers = HashMap::new();
headers.insert("traceparent".to_string(),
    "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01".to_string());
headers.insert("x-request-id".to_string(), "12345".to_string());
headers.insert("x-user-id".to_string(), "user-789".to_string());
headers.insert("baggage-tenant".to_string(), "acme-corp".to_string());

let context = ContextPropagator::extract(&headers);
assert!(context.is_some());

if let Some(ctx) = context {
    assert_eq!(ctx.user_id, Some("user-789".to_string()));
    assert_eq!(ctx.baggage.get("tenant"), Some(&"acme-corp".to_string()));
}

// Inject context into outgoing HTTP headers
let context = RequestContext::new(RequestId::from(999i64))
    .with_user_id("admin".to_string());
let outgoing_headers = ContextPropagator::inject(&context);
assert!(outgoing_headers.contains_key("traceparent"));
assert_eq!(outgoing_headers.get("x-user-id"), Some(&"admin".to_string()));

Implementations

impl ContextPropagator

pub fn extract(headers: &HashMap<String, String>) -> Option<RequestContext>

Extract context from incoming request.

pub fn inject(context: &RequestContext) -> HashMap<String, String>

Inject context into outgoing request.

Trait Implementations

impl Debug for ContextPropagator

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

Formats the value using the given formatter.