From 977582fcedd68486ee9ac541204db176808304c4 Mon Sep 17 00:00:00 2001
From: rstoyanchev <rossen.stoyanchev@broadcom.com>
Date: Wed, 3 Sep 2025 10:10:20 +0100
Subject: [PATCH] Document data binding for functional endpoints

Closes gh-35367
---
 .../ROOT/pages/web/webflux-functional.adoc    | 23 ++++++++++++++++++-
 .../ROOT/pages/web/webmvc-functional.adoc     | 20 ++++++++++++++++
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/framework-docs/modules/ROOT/pages/web/webflux-functional.adoc b/framework-docs/modules/ROOT/pages/web/webflux-functional.adoc
index 882cb422e39..78f0fef09a2 100644
--- a/framework-docs/modules/ROOT/pages/web/webflux-functional.adoc
+++ b/framework-docs/modules/ROOT/pages/web/webflux-functional.adoc
@@ -294,7 +294,28 @@ allPartsEvents.windowUntil(PartEvent::isLast)
 ----
 ======
 
-Note that the body contents of the `PartEvent` objects must be completely consumed, relayed, or released to avoid memory leaks.
+NOTE: The body contents of the `PartEvent` objects must be completely consumed, relayed, or released to avoid memory leaks.
+
+The following shows how to bind request parameters, including an optional `DataBinder` customization:
+
+[tabs]
+======
+Java::
++
+[source,java]
+----
+Pet pet = request.bind(Pet.class, dataBinder -> dataBinder.setAllowedFields("name"));
+----
+
+Kotlin::
++
+[source,kotlin]
+----
+val pet = request.bind(Pet::class.java, {dataBinder -> dataBinder.setAllowedFields("name")})
+----
+======
+
+
 
 [[webflux-fn-response]]
 === ServerResponse
diff --git a/framework-docs/modules/ROOT/pages/web/webmvc-functional.adoc b/framework-docs/modules/ROOT/pages/web/webmvc-functional.adoc
index 82fb164a949..60e48c69a5e 100644
--- a/framework-docs/modules/ROOT/pages/web/webmvc-functional.adoc
+++ b/framework-docs/modules/ROOT/pages/web/webmvc-functional.adoc
@@ -184,6 +184,26 @@ val map = request.params()
 ----
 ======
 
+The following shows how to bind request parameters, including an optional `DataBinder` customization:
+
+[tabs]
+======
+Java::
++
+[source,java]
+----
+Pet pet = request.bind(Pet.class, dataBinder -> dataBinder.setAllowedFields("name"));
+----
+
+Kotlin::
++
+[source,kotlin]
+----
+val pet = request.bind(Pet::class.java, {dataBinder -> dataBinder.setAllowedFields("name")})
+----
+======
+
+
 [[webmvc-fn-response]]
 === ServerResponse