Add more context to the request logs

[GianlucaFicarelli]

Log in case of request_completed with success:

{
  "time": "2026-03-09T14:19:35.087574+01:00",
  "level": "INFO",
  "name": "app.middleware",
  "message": "request_completed",
  "extra": {
    "method": "GET",
    "url": "http://127.0.0.1:8000/cell-morphology",
    "route_template": "/cell-morphology",
    "status_code": 200,
    "status_class": 2,
    "process_time_ms": 530,
    "response_size": 80,
    "client": "127.0.0.1",
    "forwarded_for": "",
    "user_agent": "curl/8.7.1",
    "request_id": "9232ffab-e4b9-437c-84c8-109456a623d0",
    "user_id": "dcb8ee63-c8fd-4284-8ec3-a3b6ff3fab88"
  },
  "exception": null
}

Log in case of request_completed with validation error (user_id is missing because not resolved):

{
  "time": "2026-03-09T14:13:21.058340+01:00",
  "level": "INFO",
  "name": "app.middleware",
  "message": "request_completed",
  "extra": {
    "method": "GET",
    "url": "http://127.0.0.1:8000/cell-morphology/a7b7cc69-c5d4-4cc6-b902-9b848623d208?page_size=30&page=1&with_facets=true&order_by=-creation_date&within_brain_region_hierarchy_id=e3e70682-c209-4cac-a29f-6fbed82c07cd&within_brain_region_brain_region_id=5c60bf3e-5335-4971-a8ec-6597292452b2&within_brain_region_direction=ascendants_and_descendants&authorized_public=true",
    "route_template": "/cell-morphology/{id_}",
    "status_code": 422,
    "status_class": 4,
    "process_time_ms": 2,
    "response_size": 297,
    "client": "127.0.0.1",
    "forwarded_for": "",
    "user_agent": "curl/8.7.1",
    "request_id": "5b57df68-22f6-4bde-b550-e865c62ba320"
  },
  "exception": null
}

Log in case of request_failed (uncaught exception):

{
  "time": "2026-03-09T14:15:46.849294+01:00",
  "level": "ERROR",
  "name": "app.middleware",
  "message": "request_failed",
  "extra": {
    "method": "GET",
    "url": "http://127.0.0.1:8000/cell-morphology",
    "status_code": 500,
    "status_class": 5,
    "process_time_ms": 442,
    "client": "127.0.0.1",
    "forwarded_for": "",
    "user_agent": "curl/8.7.1",
    "request_id": "d6729a88-5f7e-4fba-909c-20c76194e9b4",
    "user_id": "dcb8ee63-c8fd-4284-8ec3-a3b6ff3fab88"
  },
  "exception": null
}

In this last case, the uncaught exception is logged by uvicorn in a separate message, with the same request_id:

{
    "time": "2026-03-09T14:15:46.862779+01:00",
    "level": "ERROR",
    "name": "uvicorn.protocols.http.httptools_impl",
    "message": "Exception in ASGI application\n",
    "extra": {
        "request_id": "d6729a88-5f7e-4fba-909c-20c76194e9b4",
        "user_id": "dcb8ee63-c8fd-4284-8ec3-a3b6ff3fab88",
    },
    "exception": {
        "type": "RuntimeError",
        "value": "test error",
        "traceback": "Traceback (most recent call last):..."
    },
}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
pytest	97.91% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
app/middleware.py	100.00% <100.00%> (ø)
app/schemas/types.py	100.00% <100.00%> (ø)

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