midwinter/dist/otel.mjs

A next-gen middleware engine built for the WinterCG environments.

import { Midwinter } from './chunk-WXZQARCU.mjs';
import { trace } from '@opentelemetry/api';
import { SEMATTRS_HTTP_URL, ATTR_HTTP_REQUEST_METHOD, ATTR_HTTP_RESPONSE_STATUS_CODE, ATTR_HTTP_ROUTE } from '@opentelemetry/semantic-conventions';

var init = (opts) => {
  const { name = "midwinter" } = opts ?? {};
  const otel = () => {
    const tracer = trace.getTracer(name);
    return new Midwinter().use((req, _, meta) => {
      return tracer.startActiveSpan("request", (span) => {
        return (res) => {
          span.setAttributes({
            [SEMATTRS_HTTP_URL]: res.url,
            [ATTR_HTTP_REQUEST_METHOD]: req.method,
            [ATTR_HTTP_RESPONSE_STATUS_CODE]: res.status
          });
          if (typeof meta.path === "string") {
            span.setAttribute(ATTR_HTTP_ROUTE, meta.path);
          }
          span.end();
        };
      });
    });
  };
  return { otel };
};

export { init };