appcore-api 1.0.1-rc.8

HTTP API host and transport contracts for AppCore Runtime.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

//! HTTP ingress trace construction and validation.

use super::state::RuntimeStaticInfo;
use appcore_core::{CoreId, TenantId, TraceContext};
use axum::http::HeaderMap;

pub(crate) fn request_trace(
    headers: &HeaderMap,
    operation_id: &str,
    static_info: &RuntimeStaticInfo,
) -> Result<TraceContext, ()> {
    let trace_id = optional_header(headers, "x-appcore-trace-id")?
        .unwrap_or(operation_id)
        .to_string();
    let span_id = optional_header(headers, "x-appcore-span-id")?
        .unwrap_or(operation_id)
        .to_string();
    let core_id = CoreId::new(static_info.core_id.clone()).map_err(|_| ())?;
    let tenant_id = TenantId::new(static_info.tenant_id.clone()).map_err(|_| ())?;
    TraceContext::new(trace_id, span_id, core_id.clone(), core_id, tenant_id).map_err(|_| ())
}

fn optional_header<'a>(headers: &'a HeaderMap, name: &str) -> Result<Option<&'a str>, ()> {
    headers
        .get(name)
        .map(|value| value.to_str().map_err(|_| ()))
        .transpose()
}