fix: converts redis dsn to string (#9)

Author: jtyoung84

aind-tars-service-server/src/aind_tars_service_server/main.py

@@ -36,7 +36,7 @@ async def lifespan(_: FastAPI) -> AsyncIterator[None]:
     """Init cache and add to lifespan of app"""
     settings = get_settings()
     if settings.redis_url is not None:
-        redis = from_url(settings.redis_url)
+        redis = from_url(settings.redis_url.unicode_string())
         FastAPICache.init(RedisBackend(redis), prefix="fastapi-cache")
     else:
         FastAPICache.init(InMemoryBackend(), prefix="fastapi-cache")

aind-tars-service-server/tests/conftest.py

@@ -8,6 +8,7 @@
 
 import pytest
 from fastapi.testclient import TestClient
+from pydantic import RedisDsn
 
 from aind_tars_service_server.configs import Settings
 
@@ -85,7 +86,7 @@ def client_with_redis() -> Generator[TestClient, Any, None]:
 
     settings = Settings()
     settings_with_redis = settings.model_copy(
-        update={"redis_url": "redis"}, deep=True
+        update={"redis_url": RedisDsn("redis://example.com:1234")}, deep=True
     )
     with (
         patch(