PUT works

src/main/java/com/release11/klaus/controller/MockController.java

@@ -1,5 +1,6 @@
 package com.release11.klaus.controller;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.release11.klaus.model.MockedMessageDto;
 import com.release11.klaus.service.KlausService;
 import lombok.AllArgsConstructor;
@@ -48,8 +49,11 @@ public class MockController {
         return "mock";
     }
 
+    @SneakyThrows
     @PutMapping("/mock/json")
-    public ResponseEntity<String> updateMessage(@RequestBody MockedMessageDto message){
+    public ResponseEntity<String> updateMessage(@RequestBody String body){
+        ObjectMapper mapper = new ObjectMapper();
+        MockedMessageDto message = mapper.readValue(body, MockedMessageDto.class);
         return klausService.setMockedResponse(message);
     }