Created a separate package for tracing-related stuff

Added mirroring of spans into Sentry
Tracer is a facade that redirects actions to tracing backends

cmapi/tracing/traced_aiohttp.py

@@ -0,0 +1,40 @@
+"""Async sibling of TracedSession."""
+from typing import Any
+
+import aiohttp
+
+from tracing.tracer import get_tracer
+
+
+class TracedAsyncSession(aiohttp.ClientSession):
+    async def _request(
+        self, method: str, str_or_url: Any, *args: Any, **kwargs: Any
+    ) -> aiohttp.ClientResponse:
+        tracer = get_tracer()
+
+        headers = kwargs.get("headers") or {}
+        if headers is None:
+            headers = {}
+        kwargs["headers"] = headers
+
+        url_text = str(str_or_url)
+        span_name = f"HTTP {method} {url_text}"
+        with tracer.start_as_current_span(span_name, kind="CLIENT") as span:
+            span.set_attribute("http.method", method)
+            span.set_attribute("http.url", url_text)
+            tracer.inject_outbound_headers(headers)
+            try:
+                response = await super()._request(method, str_or_url, *args, **kwargs)
+            except Exception as exc:
+                span.set_status("ERROR", str(exc))
+                raise
+            else:
+                span.set_attribute("http.status_code", response.status)
+                return response
+
+
+def create_traced_async_session(**kwargs: Any) -> TracedAsyncSession:
+    return TracedAsyncSession(**kwargs)
+
+
+