Merge pull request 'fix' (#39) from master into prod

Reviewed-on: #39

.deploy/deploy-dev.yaml

@@ -9,6 +9,7 @@ services:
     environment:
       MONGO_HOST: "mongo.develop.sprinthub.ru"
       MONGO_PASSWORD: $MONGO_PASSWORD_DEV
+      STAGE: "development"
     deploy:
       mode: replicated
       restart_policy:

.deploy/deploy-prod.yaml

@@ -9,6 +9,7 @@ services:
     environment:
       MONGO_HOST: "mongo.sprinthub.ru"
       MONGO_PASSWORD: $MONGO_PASSWORD_PROD
+      STAGE: "production"
     deploy:
       mode: replicated
       restart_policy:

Dockerfile

@@ -8,4 +8,6 @@ RUN pip install -r requirements.txt
 
 COPY . .
 
+ENV PYTHONUNBUFFERED=1
+
 ENTRYPOINT ["python", "main.py"]

app/routers/take.py

@@ -1,3 +1,5 @@
+import asyncio
+import collections
 import fastapi
 import pydantic
 import typing
@@ -5,18 +7,24 @@ import typing
 from app.storage.mongo import tasks
 
 
+locks = collections.defaultdict(asyncio.Lock)
 router = fastapi.APIRouter()
 
 
-class Response(pydantic.BaseModel):
+class Task(pydantic.BaseModel):
     id: str
     attempt: int
     payload: dict
 
 
+class Response(pydantic.BaseModel):
+    task: Task|None
+
+
 @router.get('/api/v1/take', responses={404: {'description': 'Not found'}})
 async def execute(queue: typing.Annotated[str, fastapi.Header()]) -> Response:
+    async with locks[queue]:
         task = await tasks.take_task(queue)
     if not task:
-        raise fastapi.HTTPException(404)
+        return Response(task=None)
-    return Response(id=str(task._id), attempt=task.attempts, payload=task.payload)
+    return Response(task=Task(id=str(task._id), attempt=task.attempts, payload=task.payload))

app/storage/mongo/tasks.py

@@ -1,8 +1,6 @@
-import asyncio
 import bson
 import datetime
 import pydantic
-import typing
 
 from app.storage.mongo import database
 from app.utils import time
@@ -28,7 +26,7 @@ async def add_task(task: Task) -> str:
     return result.inserted_id
 
 
-async def take_task(queue: str) -> typing.Optional[Task]:
+async def take_task(queue: str) -> Task|None:
     now = time.now()
     async for raw_task in collection.find({'queue': queue, 'available_from': {'$lte': now}}):
         task = Task.model_validate(raw_task)

main.py

@@ -8,14 +8,20 @@ from app.routers import finish
 from app.storage import mongo
 
 
-app = fastapi.FastAPI()
+app = fastapi.FastAPI(debug=True)
 
 app.include_router(take.router)
 app.include_router(put.router)
 app.include_router(finish.router)
 
-mongo.create_indexes()
+@app.exception_handler(Exception)
+async def unicorn_exception_handler(request: fastapi.Request, exc: Exception):
+    return fastapi.JSONResponse(
+        status_code=500,
+        content={"message": f"Oops! {exc.name} did something. There goes a rainbow... {exc}"},
+    )
 
+mongo.create_indexes()
 
 if __name__ == '__main__':
     uvicorn.run(app, host="0.0.0.0", port=1239)

requirements.txt

@@ -1,20 +1,44 @@
 annotated-types==0.7.0
 anyio==4.6.2.post1
 APScheduler==3.10.4
+certifi==2024.12.14
+charset-normalizer==3.4.1
 click==8.1.7
 dnspython==2.7.0
+email_validator==2.2.0
 fastapi==0.115.4
+fastapi-cli==0.0.7
 h11==0.14.0
+httpcore==1.0.7
+httptools==0.6.4
+httpx==0.28.1
 idna==3.10
+Jinja2==3.1.5
+markdown-it-py==3.0.0
+MarkupSafe==3.0.2
+mdurl==0.1.2
 motor==3.6.0
 pydantic==2.9.2
 pydantic_core==2.23.4
+Pygments==2.18.0
 pymongo==4.9.2
+python-dotenv==1.0.1
+python-multipart==0.0.20
 pytz==2024.2
+PyYAML==6.0.2
 redis==5.2.0
+requests==2.32.3
+rich==13.9.4
+rich-toolkit==0.12.0
+shellingham==1.5.4
 six==1.16.0
 sniffio==1.3.1
 starlette==0.41.2
+typer==0.15.1
 typing_extensions==4.12.2
 tzlocal==5.2
+urllib3==2.3.0
 uvicorn==0.32.0
+uvloop==0.21.0
+watchfiles==1.0.3
+websockets==14.1