From 6821522ea32dda15c75b64439acdc913de7fcf9c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9A=D0=BE=D0=B1=D1=8B=D0=BB=D0=BA=D0=B5=D0=B2=D0=B8?=
 =?UTF-8?q?=D1=87=20=D0=A4=D1=91=D0=B4=D0=BE=D1=80?=
 <fmkobylkevich@mai.education>
Date: Tue, 7 Apr 2026 22:49:27 +0300
Subject: [PATCH] change architecture and swap from httpx to aiohttp

---
 api/main.py | 142 ++++++++++++++--------------------------------------
 1 file changed, 38 insertions(+), 104 deletions(-)

diff --git a/api/main.py b/api/main.py
index 33b073a9..c1a0e537 100644
--- a/api/main.py
+++ b/api/main.py
@@ -1,112 +1,46 @@
-import asyncio
 from contextlib import asynccontextmanager
 
-from fastapi import FastAPI, HTTPException
-from fastapi.responses import JSONResponse
+import aiohttp
+from fastapi import FastAPI
 
-from api.browser_rpc_client import BrowserRpcError
-from api.config import settings
-from api.schemas import BrowserTaskRequest, BrowserTaskAcceptedResponse, BrowserTaskStatusResponse, \
-    BrowserTaskResultResponse, TaskStatus
-from api.task_store import TaskStore
-from api.browser_rpc_client import run_browser_task
-
-store = TaskStore()
-_semaphore = asyncio.Semaphore(settings.max_concurrency)
+from api.clients.browser_rpc_client import BrowserRpcClient
+from api.core.settings import settings
+from api.repositories.task_store import TaskStore
+from api.routes.tasks import router as tasks_router
+from api.services.task_service import TaskService
 
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
-    yield
-
-
-app = FastAPI(title="Browser API", version="1.0.0", lifespan=lifespan)
-
-
-async def _worker(task_id: str) -> None:
-    rec = await store.set_running(task_id)
-    if rec is None:
-        return None
-
-    async with _semaphore:
-        try:
-            raw = await asyncio.wait_for(
-                run_browser_task(
-                    rpc_url=settings.browser_rpc_url,
-                    task=rec.task,
-                    timeout_sec=float(rec.timeout),
-                ),
-                timeout=float(rec.timeout) + 5,
-            )
-            success = bool(raw.get("success"))
-            await store.set_done(task_id=task_id, success=success, raw_response=raw, error=None)
-        except asyncio.TimeoutError:
-            await store.set_done(
-                task_id=task_id,
-                success=False,
-                raw_response=None,
-                error="Timeout exceeded",
-            )
-        except BrowserRpcError as exc:
-            await store.set_done(
-                task_id=task_id,
-                success=False,
-                raw_response=None,
-                error=str(exc),
-            )
-        except Exception as exc:
-            await store.set_done(
-                task_id=task_id,
-                success=False,
-                raw_response=None,
-                error=f"Internal error: {exc}",
-            )
-
-
-@app.get("/health")
-async def health() -> dict:
-    return {"ok": True}
-
-
-@app.post("/api/browser/tasks", response_model=BrowserTaskAcceptedResponse, status_code=202)
-async def create_task(payload: BrowserTaskRequest) -> BrowserTaskAcceptedResponse:
-    rec = await store.create(task=payload.task.strip(), timeout=payload.timeout, metadata=payload.metadata)
-    asyncio.create_task(_worker(rec.task_id))
-    return BrowserTaskAcceptedResponse(task_id=rec.task_id, status=rec.status)
-
-
-@app.get("/api/browser/tasks/{task_id}", response_model=BrowserTaskStatusResponse)
-async def get_task_status(task_id: str) -> BrowserTaskStatusResponse:
-    rec = await store.get(task_id=task_id)
-    if rec is None:
-        raise HTTPException(status_code=404, detail="Task not found")
-    return BrowserTaskStatusResponse(task_id=rec.task_id, status=rec.status, create_at=rec.create_at,
-                                     started_at=rec.started_at, finished_at=rec.finished_at, error=rec.error)
-
-
-@app.get("/api/browser/tasks/{task_id}/result", response_model=BrowserTaskResultResponse)
-async def get_task_result(task_id: str) -> BrowserTaskResultResponse:
-    rec = await store.get(task_id=task_id)
-    if rec is None:
-        raise HTTPException(status_code=404, detail="Task not found")
-
-    if rec.status in (TaskStatus.queued, TaskStatus.running):
-        return JSONResponse(status_code=202, content={
-            "task_id": rec.task_id,
-            "status": rec.status,
-            "success": False,
-            "execution_time": rec.execution_time,
-            "result": None,
-            "error": None,
-            "raw_response": None,
-        })
-
-    return BrowserTaskResultResponse(
-        task_id=rec.task_id,
-        status=rec.status,
-        success=(rec.status == "succeeded"),
-        execution_time=rec.execution_time,
-        result=rec.result,
-        error=rec.error,
-        raw_response=rec.raw_response,
+    session = aiohttp.ClientSession()
+    task_service = TaskService(
+        store=TaskStore(),
+        rpc_client=BrowserRpcClient(settings.browser_rpc_url, session=session),
+        max_concurrency=settings.max_concurrency,
+        rpc_timeout_cap=settings.browser_rpc_timeout,
     )
+    app.state.task_service = task_service
+    try:
+        yield
+    finally:
+        await task_service.close()
+        await session.close()
+
+
+def create_app() -> FastAPI:
+    app = FastAPI(
+        title="Browser API",
+        version="1.0.0",
+        description="REST API for submitting tasks to browser-use and retrieving their status/results.",
+        lifespan=lifespan,
+    )
+    app.include_router(tasks_router)
+
+    @app.get("/health")
+    async def health() -> dict:
+        return {"ok": True}
+
+    return app
+
+
+app = create_app()