4.21.3

app/app/redis_services.py

@@ -0,0 +1,23 @@
+import flask
+import limits.storage
+
+from app.parallel_limiter import set_redis_concurrent_lock
+from app.session import RedisSessionStore
+
+
+def initialize_redis_services(app: flask.Flask, redis_url: str):
+
+    if redis_url.startswith("redis://"):
+        storage = limits.storage.RedisStorage(redis_url)
+        app.session_interface = RedisSessionStore(storage.storage, storage.storage, app)
+        set_redis_concurrent_lock(storage)
+    elif redis_url.startswith("redis+sentinel://"):
+        storage = limits.storage.RedisSentinelStorage(redis_url)
+        app.session_interface = RedisSessionStore(
+            storage.storage, storage.storage_slave, app
+        )
+        set_redis_concurrent_lock(storage)
+    else:
+        raise RuntimeError(
+            f"Tried to set_redis_session with an invalid redis url: ${redis_url}"
+        )