diff --git a/schunk_egu_egk_gripper_dummy/schunk_egu_egk_gripper_dummy/main.py b/schunk_egu_egk_gripper_dummy/schunk_egu_egk_gripper_dummy/main.py
index ea8f176..857964f 100644
--- a/schunk_egu_egk_gripper_dummy/schunk_egu_egk_gripper_dummy/main.py
+++ b/schunk_egu_egk_gripper_dummy/schunk_egu_egk_gripper_dummy/main.py
@@ -1,6 +1,6 @@
 from src.dummy import Dummy
 
-from fastapi import FastAPI, Request
+from fastapi import FastAPI, Request, Form
 from fastapi.middleware.cors import CORSMiddleware
 from typing import Optional
 from pydantic import BaseModel
@@ -20,15 +20,22 @@
 )
 
 
-class Message(BaseModel):
-    message: str
-    optional: Optional[str] = None
+class Update(BaseModel):
+    inst: str
+    value: str
+    elem: Optional[int] = None
+    callback: Optional[str] = None
 
 
-@server.put("/")
-async def put(msg: Message):
-    print(msg)
-    return True
+@server.post("/adi/update.json")
+async def post(
+    inst: str = Form(...),
+    value: str = Form(...),
+    elem: Optional[int] = Form(None),
+    callback: Optional[str] = Form(None),
+):
+    msg = Update(inst=inst, value=value, elem=elem, callback=callback)
+    return dummy.post(msg)
 
 
 @server.get("/adi/{path}")
diff --git a/schunk_egu_egk_gripper_dummy/src/dummy.py b/schunk_egu_egk_gripper_dummy/src/dummy.py
index 3536681..42216d6 100644
--- a/schunk_egu_egk_gripper_dummy/src/dummy.py
+++ b/schunk_egu_egk_gripper_dummy/src/dummy.py
@@ -46,6 +46,9 @@ def _run(self) -> None:
             time.sleep(1)
         print("Done")
 
+    def post(self, msg: dict) -> dict:
+        return {"result": 0}
+
     def get_info(self, query: dict[str, str]) -> dict:
         return {"dataformat": 0}  # 0: Little endian, 1: Big endian
 
diff --git a/schunk_egu_egk_gripper_dummy/tests/test_dummy.py b/schunk_egu_egk_gripper_dummy/tests/test_dummy.py
index 747b44a..e37b4e8 100644
--- a/schunk_egu_egk_gripper_dummy/tests/test_dummy.py
+++ b/schunk_egu_egk_gripper_dummy/tests/test_dummy.py
@@ -87,3 +87,11 @@ def test_dummy_survives_invalid_data_requests():
     query = {"inst": "0x0040", "count": "2"}
     expected = []
     assert dummy.get_data(query) == expected
+
+
+def test_dummy_responds_correctly_to_post_requests():
+    dummy = Dummy()
+    inst = "0x0048"
+    data = {"inst": inst, "value": "01"}
+    expected = {"result": 0}
+    assert dummy.post(data) == expected
diff --git a/schunk_egu_egk_gripper_dummy/tests/test_webserver.py b/schunk_egu_egk_gripper_dummy/tests/test_webserver.py
index 2c05bfe..91444c1 100644
--- a/schunk_egu_egk_gripper_dummy/tests/test_webserver.py
+++ b/schunk_egu_egk_gripper_dummy/tests/test_webserver.py
@@ -15,3 +15,9 @@ def test_enum_route_is_available():
 def test_data_route_is_available():
     client = TestClient(server)
     assert client.get("/adi/data.json").is_success
+
+
+def test_update_route_is_available():
+    client = TestClient(server)
+    data = {"inst": 0, "value": "0"}
+    assert client.post("/adi/update.json", data=data).is_success