add basic rate limiting

endpoints/radio.py

@@ -13,8 +13,14 @@ from .constructors import (
 )
 from utils import radio_util
 from typing import Optional
-from fastapi import FastAPI, BackgroundTasks, Request, Response, HTTPException
-from starlette.concurrency import run_in_threadpool
+from fastapi import (
+    FastAPI,
+    BackgroundTasks, 
+    Request, 
+    Response,
+    HTTPException,
+    Depends)
+from fastapi_throttle import RateLimiter
 from fastapi.responses import RedirectResponse, JSONResponse
 
 
@@ -43,7 +49,8 @@ class Radio(FastAPI):
 
         for endpoint, handler in self.endpoints.items():
             app.add_api_route(
-                f"/{endpoint}", handler, methods=["POST"], include_in_schema=True
+                f"/{endpoint}", handler, methods=["POST"], include_in_schema=True, 
+                dependencies=[Depends(RateLimiter(times=10, seconds=5))],
             )
 
         # NOTE: Not in loop because method is GET for this endpoint
@@ -58,7 +65,7 @@ class Radio(FastAPI):
 
     async def on_start(self) -> None:
         logging.info("radio: Initializing")
-        await run_in_threadpool(self.radio_util.load_playlist)
+        self.loop.run_in_executor(None, self.radio_util.load_playlist)
 
     async def radio_skip(
         self, data: ValidRadioNextRequest, request: Request
@@ -317,7 +324,7 @@ class Radio(FastAPI):
         if len(self.radio_util.active_playlist) > 1:
             self.radio_util.active_playlist.append(next)  # Push to end of playlist
         else:
-            await run_in_threadpool(self.radio_util.load_playlist)
+            self.loop.run_in_executor(None, self.radio_util.load_playlist)
 
         self.radio_util.now_playing = next
         next["start"] = time_started