Dockerfile

@@ -56,6 +56,8 @@ COPY /templates/ templates/
 COPY .env app/
 COPY alembic.ini /panettone/alembic.ini
 COPY /alembic/ /panettone/alembic/
+COPY logging-uvicorn.json /panettone/logging-uvicorn.json
+COPY logging-granian.json /panettone/logging-granian.json
 COPY pyproject.toml /panettone/pyproject.toml
 
 RUN python -V

app/api/health.py

@@ -1,11 +1,12 @@
+import logging
 from typing import Annotated
 
 from fastapi import APIRouter, Depends, Query, Request, status
 from pydantic import EmailStr
-from rotoger import AppStructLogger
 from starlette.concurrency import run_in_threadpool
 
 from app.services.smtp import SMTPEmailService
+from app.utils.logging import AppStructLogger
 
 logger = AppStructLogger().get_logger()
 
@@ -33,7 +34,7 @@ async def redis_check(request: Request):
     try:
         redis_info = await redis_client.info()
     except Exception as e:
-        await logger.aerror(f"Redis error: {e}")
+        logging.error(f"Redis error: {e}")
     return redis_info
 
 
@@ -87,7 +88,7 @@ async def smtp_check(
         "subject": subject,
     }
 
-    await logger.ainfo("Sending email.", email_data=email_data)
+    logger.info("Sending email with data: %s", email_data)
 
     await run_in_threadpool(
         smtp.send_email,

app/api/ml.py

@@ -2,9 +2,9 @@ from typing import Annotated
 
 from fastapi import APIRouter, Depends, Form
 from fastapi.responses import StreamingResponse
-from rotoger import AppStructLogger
 
 from app.services.llm import get_llm_service
+from app.utils.logging import AppStructLogger
 
 logger = AppStructLogger().get_logger()
 

app/api/stuff.py

@@ -1,11 +1,11 @@
 from fastapi import APIRouter, Depends, HTTPException, Request, status
-from rotoger import AppStructLogger
 from sqlalchemy.exc import SQLAlchemyError
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.database import get_db
 from app.models.stuff import Stuff
 from app.schemas.stuff import StuffResponse, StuffSchema
+from app.utils.logging import AppStructLogger
 
 logger = AppStructLogger().get_logger()
 
@@ -21,13 +21,13 @@ async def create_multi_stuff(
         db_session.add_all(stuff_instances)
         await db_session.commit()
     except SQLAlchemyError as ex:
-        await logger.aerror(f"Error inserting instances of Stuff: {repr(ex)}")
+        logger.error(f"Error inserting instances of Stuff: {repr(ex)}")
         raise HTTPException(
             status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=repr(ex)
         ) from ex
     else:
-        await logger.ainfo(
-            f"{len(stuff_instances)} Stuff instances inserted into the database."
+        logger.info(
+            f"{len(stuff_instances)} instances of Stuff inserted into database."
         )
         return True
 

app/api/user.py

@@ -1,13 +1,13 @@
 from typing import Annotated
 
 from fastapi import APIRouter, Depends, Form, HTTPException, Request, status
-from rotoger import AppStructLogger
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.database import get_db
 from app.models.user import User
 from app.schemas.user import TokenResponse, UserLogin, UserResponse, UserSchema
 from app.services.auth import create_access_token
+from app.utils.logging import AppStructLogger
 
 logger = AppStructLogger().get_logger()
 
@@ -18,7 +18,7 @@ router = APIRouter(prefix="/v1/user")
 async def create_user(
     payload: UserSchema, request: Request, db_session: AsyncSession = Depends(get_db)
 ):
-    await logger.ainfo(f"Creating user: {payload}")
+    logger.info(f"Creating user: {payload}")
     _user: User = User(**payload.model_dump())
     await _user.save(db_session)
 

app/database.py

@@ -1,9 +1,9 @@
 from collections.abc import AsyncGenerator
 
-from rotoger import AppStructLogger
 from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
 
 from app.config import settings as global_settings
+from app.utils.logging import AppStructLogger
 
 logger = AppStructLogger().get_logger()
 
@@ -29,5 +29,5 @@ async def get_db() -> AsyncGenerator:
         try:
             yield session
         except Exception as e:
-            await logger.aerror(f"Error getting database session: {e}")
+            logger.error(f"Error getting database session: {e}")
             raise

app/main.py

@@ -5,7 +5,6 @@ import asyncpg
 from fastapi import Depends, FastAPI, Request
 from fastapi.responses import HTMLResponse
 from fastapi.templating import Jinja2Templates
-from rotoger import AppStructLogger
 
 from app.api.health import router as health_router
 from app.api.ml import router as ml_router
@@ -16,6 +15,7 @@ from app.api.user import router as user_router
 from app.config import settings as global_settings
 from app.redis import get_redis
 from app.services.auth import AuthBearer
+from app.utils.logging import AppStructLogger
 
 logger = AppStructLogger().get_logger()
 templates = Jinja2Templates(directory=Path(__file__).parent.parent / "templates")
@@ -30,7 +30,7 @@ async def lifespan(app: FastAPI):
             min_size=5,
             max_size=20,
         )
-        await logger.ainfo("Postgres pool created", idle_size=app.postgres_pool.get_idle_size())
+        logger.info("Postgres pool created", idle_size=app.postgres_pool.get_idle_size())
         yield
     finally:
         await app.redis.close()

app/models/base.py

@@ -2,11 +2,12 @@ from typing import Any
 
 from asyncpg import UniqueViolationError
 from fastapi import HTTPException, status
-from rotoger import AppStructLogger
 from sqlalchemy.exc import IntegrityError, SQLAlchemyError
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import DeclarativeBase, declared_attr
 
+from app.utils.logging import AppStructLogger
+
 logger = AppStructLogger().get_logger()
 
 
@@ -29,7 +30,7 @@ class Base(DeclarativeBase):
             db_session.add(self)
             return await db_session.commit()
         except SQLAlchemyError as ex:
-            await logger.aerror(f"Error inserting instance of {self}: {repr(ex)}")
+            logger.error(f"Error inserting instance of {self}: {repr(ex)}")
             raise HTTPException(
                 status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=repr(ex)
             ) from ex

app/services/auth.py

@@ -3,10 +3,10 @@ import time
 import jwt
 from fastapi import HTTPException, Request
 from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
-from rotoger import AppStructLogger
 
 from app.config import settings as global_settings
 from app.models.user import User
+from app.utils.logging import AppStructLogger
 
 logger = AppStructLogger().get_logger()
 
@@ -40,7 +40,7 @@ class AuthBearer(HTTPBearer):
             raise HTTPException(
                 status_code=403, detail="Invalid token or expired token."
             )
-        await logger.ainfo(f"Token verified: {credentials.credentials}")
+        logger.info(f"Token verified: {credentials.credentials}")
         return credentials.credentials
 
 

app/services/scheduler.py

@@ -15,9 +15,9 @@ logger = AppLogger().get_logger()
 async def tick():
     async with AsyncSessionFactory() as session:
         stmt = text("select 1;")
-        await logger.ainfo(f">>>> Be or not to be...{datetime.now()}")
+        logger.info(f">>>> Be or not to be...{datetime.now()}")
         result = await session.execute(stmt)
-        await logger.ainfo(f">>>> Result: {result.scalar()}")
+        logger.info(f">>>> Result: {result.scalar()}")
         return True
 
 

app/services/smtp.py

@@ -5,9 +5,9 @@ from email.mime.text import MIMEText
 from attrs import define, field
 from fastapi.templating import Jinja2Templates
 from pydantic import EmailStr
-from rotoger import AppStructLogger
 
 from app.config import settings as global_settings
+from app.utils.logging import AppStructLogger
 from app.utils.singleton import SingletonMetaNoArgs
 
 logger = AppStructLogger().get_logger()

app/utils/logging.py

@@ -11,63 +11,27 @@ from whenever._whenever import Instant
 from app.utils.singleton import SingletonMetaNoArgs
 
 
-class RotatingBytesLogger:
-    """Logger that respects RotatingFileHandler's rotation capabilities."""
-
-    def __init__(self, handler):
+# TODO: merge this wrapper with the one in structlog under one hood of AppLogger
+class BytesToTextIOWrapper:
+    def __init__(self, handler, encoding="utf-8"):
         self.handler = handler
+        self.encoding = encoding
 
-    def msg(self, message):
-        """Process a message and pass it through the handler's emit method."""
-        if isinstance(message, bytes):
-            message = message.decode("utf-8")
+    def write(self, b):
+        if isinstance(b, bytes):
+            self.handler.stream.write(b.decode(self.encoding))
+        else:
+            self.handler.stream.write(b)
+        self.handler.flush()
 
-        # Create a log record that will trigger rotation checks
-        record = logging.LogRecord(
-            name="structlog",
-            level=logging.INFO,
-            pathname="",
-            lineno=0,
-            msg=message.rstrip("\n"),
-            args=(),
-            exc_info=None
-        )
+    def flush(self):
+        self.handler.flush()
 
-        # Check if rotation is needed before emitting
-        if self.handler.shouldRollover(record):
-            self.handler.doRollover()
-
-        # Emit the record through the handler
-        self.handler.emit(record)
-
-    # Required methods to make it compatible with structlog
-    def debug(self, message):
-        self.msg(message)
-
-    def info(self, message):
-        self.msg(message)
-
-    def warning(self, message):
-        self.msg(message)
-
-    def error(self, message):
-        self.msg(message)
-
-    def critical(self, message):
-        self.msg(message)
+    def close(self):
+        self.handler.close()
 
 
-class RotatingBytesLoggerFactory:
-    """Factory that creates loggers that respect file rotation."""
-
-    def __init__(self, handler):
-        self.handler = handler
-
-    def __call__(self, *args, **kwargs):
-        return RotatingBytesLogger(self.handler)
-
-
-@define
+@define(slots=True)
 class AppStructLogger(metaclass=SingletonMetaNoArgs):
     _logger: structlog.BoundLogger = field(init=False)
 
@@ -76,7 +40,8 @@ class AppStructLogger(metaclass=SingletonMetaNoArgs):
         _log_path = Path(f"{_log_date}_{os.getpid()}.log")
         _handler = RotatingFileHandler(
             filename=_log_path,
-            maxBytes=10 * 1024 * 1024,  # 10MB
+            mode="a",
+            maxBytes=10 * 1024 * 1024,
             backupCount=5,
             encoding="utf-8"
         )
@@ -90,7 +55,9 @@ class AppStructLogger(metaclass=SingletonMetaNoArgs):
                 structlog.processors.TimeStamper(fmt="iso", utc=True),
                 structlog.processors.JSONRenderer(serializer=orjson.dumps),
             ],
-            logger_factory=RotatingBytesLoggerFactory(_handler)
+            logger_factory=structlog.BytesLoggerFactory(
+                file=BytesToTextIOWrapper(_handler)
+            )
         )
         self._logger = structlog.get_logger()
 

pyproject.toml

@@ -29,7 +29,8 @@ dependencies = [
     "polyfactory>=2.21.0",
     "granian>=2.3.2",
     "apscheduler[redis,sqlalchemy]>=4.0.0a6",
-    "rotoger",
+    "structlog>=25.4.0",
+    "whenever>=0.8.5",
 ]
 
 [tool.uv]