From b40c7df25763c2975e8d3a630c1fa2e0ee5fc249 Mon Sep 17 00:00:00 2001
From: Evgeniy Scherbina <evgeniy.shcherbina.es@gmail.com>
Date: Tue, 17 Oct 2023 10:23:00 -0400
Subject: [PATCH] Update CACHING.md

---
 architecture/CACHING.md | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/architecture/CACHING.md b/architecture/CACHING.md
index 4784b98..218e762 100644
--- a/architecture/CACHING.md
+++ b/architecture/CACHING.md
@@ -34,6 +34,36 @@ package provides two different middlewares:
 
 ## Cache Invalidation
 
+### Keys Structure
+
+Keys have such format:
+
+`query:<chain_name>:<method_name>:<keccak256(body)>`
+
+For example:
+
+`query:local-chain:eth_getBlockByNumber:0x72806e50da4f1c824b9d5a74ce9d76ac4db72e4da049802d1d6f2de3fda73e10`
+
+### Invalidation for specific method
+
+If you want to invalidate cache for specific method you may run such command:
+
+`redis-cli KEYS "query:<chain_name>:<method_name>:*" | xargs redis-cli DEL`
+
+For example:
+
+`redis-cli KEYS "query:local-chain:eth_getBlockByNumber:*" | xargs redis-cli DEL`
+
+### Invalidation for all methods
+
+If you want to invalidate cache for all methods you may run such command:
+
+`redis-cli KEYS "query:<chain_name>:*" | xargs redis-cli DEL`
+
+For example:
+
+`redis-cli KEYS "query:local-chain:*" | xargs redis-cli DEL`
+
 ## Architecture Diagrams
 
 ### Serve request from the cache (avoiding call to actual backend)