diff --git a/docs/site/content/zh/latest/tasks/mock/simple.yaml b/docs/site/content/zh/latest/tasks/mock/simple.yaml
index 04e585c..2d756f6 100644
--- a/docs/site/content/zh/latest/tasks/mock/simple.yaml
+++ b/docs/site/content/zh/latest/tasks/mock/simple.yaml
@@ -37,3 +37,20 @@ items:
 proxies:
   - path: /api/v1/{part}
     target: http://atest.localhost:8080
+  - path: /open-apis/bot/v2/hook/{token}
+    target: https://open.feishu.cn/
+    requestAmend:
+      bodyPatch: |
+        [{
+          "op": "add",
+          "path": "/msg_type",
+          "value": "text"
+        }, {
+          "op": "add",
+          "path": "/content",
+          "value": {}
+        }, {
+          "op": "move",
+          "from": "/text",
+          "path": "/content/text"
+        }]
diff --git a/go.mod b/go.mod
index 5d6d5b1..871bf36 100644
--- a/go.mod
+++ b/go.mod
@@ -43,6 +43,8 @@ require (
 
 require golang.org/x/mod v0.22.0
 
+require github.com/evanphx/json-patch v0.5.2 // indirect
+
 require (
 	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/semver/v3 v3.2.1 // indirect
diff --git a/go.sum b/go.sum
index b1b023c..6999465 100644
--- a/go.sum
+++ b/go.sum
@@ -31,6 +31,8 @@ github.com/cucumber/messages-go/v16 v16.0.1/go.mod h1:EJcyR5Mm5ZuDsKJnT2N9KRnBK3
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/evanphx/json-patch v0.5.2 h1:xVCHIVMUu1wtM/VkR9jVZ45N3FhZfYMMYGorLCR8P3k=
+github.com/evanphx/json-patch v0.5.2/go.mod h1:ZWS5hhDbVDyob71nXKNL0+PWn6ToqBHMikGIFbs31qQ=
 github.com/expr-lang/expr v1.15.6 h1:dQFgzj5DBu3wnUz8+PGLZdPMpefAvxaCFTNM3iSjkGA=
 github.com/expr-lang/expr v1.15.6/go.mod h1:uCkhfG+x7fcZ5A5sXHKuQ07jGZRl6J0FCAaf2k4PtVQ=
 github.com/flopp/go-findfont v0.1.0 h1:lPn0BymDUtJo+ZkV01VS3661HL6F4qFlkhcJN55u6mU=
@@ -98,6 +100,7 @@ github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/invopop/jsonschema v0.7.0 h1:2vgQcBz1n256N+FpX3Jq7Y17AjYt46Ig3zIWyy770So=
 github.com/invopop/jsonschema v0.7.0/go.mod h1:O9uiLokuu0+MGFlyiaqtWxwqJm41/+8Nj0lD7A36YH0=
+github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/jhump/protoreflect v1.15.3 h1:6SFRuqU45u9hIZPJAoZ8c28T3nK64BNdp9w6jFonzls=
 github.com/jhump/protoreflect v1.15.3/go.mod h1:4ORHmSBmlCW8fh3xHmJMGyul1zNqZK4Elxc8qKP+p1k=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
diff --git a/pkg/mock/in_memory.go b/pkg/mock/in_memory.go
index c07c727..ba107be 100644
--- a/pkg/mock/in_memory.go
+++ b/pkg/mock/in_memory.go
@@ -28,6 +28,7 @@ import (
 	"sync"
 	"time"
 
+	jsonpatch "github.com/evanphx/json-patch"
 	"github.com/swaggest/openapi-go/openapi3"
 	"github.com/swaggest/rest/gorillamux"
 
@@ -125,7 +126,18 @@ func (s *inMemoryServer) Load() (err error) {
 				w.WriteHeader(http.StatusInternalServerError)
 			}
 
-			if proxy.RequestAmend.BodyPatch != "" {
+			if proxy.RequestAmend.BodyPatch != "" && len(requestBody) > 0 {
+				var patch jsonpatch.Patch
+				if patch, err = jsonpatch.DecodePatch([]byte(proxy.RequestAmend.BodyPatch)); err != nil {
+					return
+				}
+
+				fmt.Println("before patch:", string(requestBody))
+				if requestBody, err = patch.Apply(requestBody); err != nil {
+					fmt.Println(err)
+					return
+				}
+				fmt.Println("after patch:", string(requestBody))
 			}
 
 			targetReq, err := http.NewRequestWithContext(req.Context(), req.Method, api, bytes.NewBuffer(requestBody))
@@ -148,6 +160,7 @@ func (s *inMemoryServer) Load() (err error) {
 				memLogger.Error(err, "failed to read response body")
 				return
 			}
+			fmt.Println("received:", string(data))
 
 			for k, v := range resp.Header {
 				w.Header().Add(k, v[0])