docs: improve docs for auth-hook session variable caching

PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8749
Co-authored-by: Rob Dominguez <24390149+robertjdominguez@users.noreply.github.com>
GitOrigin-RevId: c685451d5c4da343a6074d3d5fd82d73f6f240b4

docs/docs/auth/authentication/webhook.mdx

@@ -237,12 +237,22 @@ auth-webhook is made after the time specified in those fields and a new websocke
 
 :::
 
-## Caching webhook session variables
+## Webhook Auth Caching
 
 <ProductBadge standard pro ee self />
 
-Webhook session variables can be cached in order to improve performance of the request. For caching, you need to return
-either:
+Session variables from a webhook token can be cached to improve the performance of the request.
+
+:::info Note
+
+- This feature is available for version `v2.22.0` and higher.
+- Webhook auth caching requires a [redis instance configured](deployment/graphql-engine-flags/reference.mdx#redis-url)
+  with the GraphQL Engine. If the redis instance is not configured or inaccessible, then the request goes through by
+  skipping the cache.
+
+:::
+
+For caching, you need to return either:
 
 - a `Cache-Control` variable, modeled on the
   [Cache-Control HTTP Header](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control), to specify a
@@ -278,14 +288,15 @@ Content-Type: application/json
 
 :::tip Tip
 
-The cache key is based on the following parameters:
+The cache key is based on the information that is sent to the auth webhook, namely the following:
 
 - Client headers
 - Graphql request
 
-This means that the cache key will change if the graphql request changes. If you want to cache auth token based on
-client headers only, you can
-[omit the auth-hook request body](deployment/graphql-engine-flags/reference.mdx#send-request-body-to-auth-hook).
+Note that the cache key will change if the GraphQL request changes even if the client headers are same. If you want to
+cache auth token based on client headers only, you should disable sending GraphQL request to the auth webhook using
+[Send Request Body to Auth Hook](deployment/graphql-engine-flags/reference.mdx#send-request-body-to-auth-hook) server
+configuration.
 
 :::
 

docs/docs/deployment/graphql-engine-flags/reference.mdx

@@ -845,7 +845,8 @@ The path to a shared CA store to use to connect to both (caching and rate-limiti
 
 ### Redis URL
 
-The Redis URL to use for [query caching](/enterprise/caching.mdx).
+The Redis URL to use for [query caching](/enterprise/caching.mdx) and [Webhook Auth
+Caching](/auth/authentication/webhook.mdx#webhook-auth-caching).
 
 |                     |                                          |
 | ------------------- | ---------------------------------------- |

docs/docs/enterprise/overview.mdx

@@ -102,6 +102,12 @@ import Enterprise from '@site/static/icons/features/enterprise.svg';
       </p>
     </div>
   </VersionedLink>
+  <VersionedLink to="/auth/authentication/webhook/#webhook-auth-caching">
+    <div className="card">
+      <h3>Webhook Auth Caching</h3>
+      <p>Authentication webhook session variables can be cached to improve the performance of a request with Hasura Enterprise Edition.</p>
+    </div>
+  </VersionedLink>
   <h2 style={{ gridColumn: `1 / -1`, marginTop: `1.2rem`, marginBottom: `.3rem`, justifySelf: `start`, fontSize: `1.8rem` }}>Security</h2>
   <VersionedLink to="/security/api-limits/">
     <div className="card">
@@ -134,12 +140,6 @@ import Enterprise from '@site/static/icons/features/enterprise.svg';
       <p>Configure multiple JWT secrets in Hasura Enterprise Edition to support multiple authentication providers.</p>
     </div>
   </VersionedLink>
-  <VersionedLink to="/auth/authentication/webhook/#caching-webhook-session-variables">
-    <div className="card">
-      <h3>Caching Auth-Hook Session Variables</h3>
-      <p>Authentication webhook session variables can be cached to improve the performance of a request with Hasura Enterprise Edition.</p>
-    </div>
-  </VersionedLink>
   <h2 style={{ gridColumn: `1 / -1`, marginTop: `1.2rem`, marginBottom: `.3rem`, justifySelf: `start`, fontSize: `1.8rem` }}>Event Triggers</h2>
   <VersionedLink to="/event-triggers/clean-up/auto-cleanup/">
     <div className="card">