add basic rate limiting

endpoints/lastfm.py

@@ -2,7 +2,8 @@ import importlib
 import logging
 import traceback
 from typing import Optional, Union
-from fastapi import FastAPI
+from fastapi import FastAPI, Depends
+from fastapi_throttle import RateLimiter
 from fastapi.responses import JSONResponse
 from .constructors import (
     ValidArtistSearchRequest,
@@ -32,7 +33,9 @@ class LastFM(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=2, seconds=2))]
             )
 
     async def artist_by_name_handler(