1 files changed, 23 insertions, 0 deletions
diff --git a/crates/sh-util/src/cache/key.rs b/crates/sh-util/src/cache/key.rs
new file mode 100644
index 0000000..41315b8
--- /dev/null
+++ b/crates/sh-util/src/cache/key.rs
@@ -0,0 +1,23 @@
+use redis::{ToRedisArgs, ToSingleRedisArg};
+
+pub enum CacheKey<'a> {
+    Session(&'a str),
+}
+
+impl ToRedisArgs for CacheKey<'_> {
+    fn write_redis_args<W>(&self, out: &mut W)
+    where
+        W: ?Sized + redis::RedisWrite,
+    {
+        out.write_arg(
+            match self {
+                CacheKey::Session(id) => {
+                    format!("session:{id}")
+                }
+            }
+            .as_bytes(),
+        );
+    }
+}
+
+impl ToSingleRedisArg for CacheKey<'_> {}