diff --git a/axon/middleware/request_context.py b/axon/middleware/request_context.py new file mode 100644 index 0000000..007d630 --- /dev/null +++ b/axon/middleware/request_context.py @@ -0,0 +1,24 @@ +import time +import uuid + +from starlette.middleware.base import BaseHTTPMiddleware +from starlette.requests import Request + +from axon.services.metrics import metrics + + +class RequestContextMiddleware(BaseHTTPMiddleware): + async def dispatch(self, request: Request, call_next): + request_id = request.headers.get("X-Request-ID") or str(uuid.uuid4()) + start = time.monotonic() + status_code = 500 + + try: + response = await call_next(request) + status_code = response.status_code + return response + finally: + latency_ms = (time.monotonic() - start) * 1000 + await metrics.record(request.url.path, status_code, latency_ms) + if "response" in locals(): + response.headers["X-Request-ID"] = request_id