⚡️ Use Redis to cache REST responses

backend/dependencies.py

@@ -1,10 +1,12 @@
 from os import environ
 
+from fastapi_cache.backends.redis import RedisBackend
+from redis import asyncio as aioredis
 from yaml import safe_load
 
 from backend.db import db
 from backend.idfm_interface import IdfmInterface
-from backend.settings import Settings
+from backend.settings import CacheSettings, Settings
 
 
 CONFIG_PATH = environ.get("CONFIG_PATH", "./config.sample.yaml")
@@ -20,3 +22,17 @@ def load_settings(path: str) -> Settings:
 settings = load_settings(CONFIG_PATH)
 
 idfm_interface = IdfmInterface(settings.idfm_api_key.get_secret_value(), db)
+
+
+def init_redis_backend(settings: CacheSettings) -> RedisBackend:
+    login = f"{settings.user}:{settings.password}@" if settings.user is not None else ""
+
+    url = f"redis://{login}{settings.host}:{settings.port}"
+
+    redis_connections_pool = aioredis.from_url(
+        url, encoding="utf8", decode_responses=True
+    )
+    return RedisBackend(redis_connections_pool)
+
+
+redis_backend = init_redis_backend(settings.cache)