add basic rate limiting

endpoints/lyric_search.py

@@ -3,7 +3,8 @@ import os
 import urllib.parse
 import regex
 import aiosqlite as sqlite3
-from fastapi import FastAPI, HTTPException
+from fastapi import FastAPI, HTTPException, Depends
+from fastapi_throttle import RateLimiter
 from fastapi.responses import JSONResponse
 from typing import LiteralString, Optional, Union, Iterable
 from regex import Pattern
@@ -76,6 +77,7 @@ class LyricSearch(FastAPI):
                 handler,
                 methods=["POST"],
                 include_in_schema=_schema_include,
+                dependencies=[Depends(RateLimiter(times=2, seconds=3))]
             )
 
     async def typeahead_handler(self, data: ValidTypeAheadRequest) -> JSONResponse: