fix(sample): Fix InvalidCastException in WebApiSample

Author: hieuxlu

src/samples/WebApiSample/WebApiSample/Controllers/EventsController.cs

@@ -5,6 +5,7 @@
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
 using Newtonsoft.Json.Linq;
+using WebApiSample.Workflows;
 using WorkflowCore.Interface;
 using WorkflowCore.Models;
 
@@ -22,9 +23,9 @@ public EventsController(IWorkflowController workflowService)
         }
 
         [HttpPost("{eventName}/{eventKey}")]
-        public async Task<IActionResult> Post(string eventName, string eventKey, [FromBody]object eventData)
+        public async Task<IActionResult> Post(string eventName, string eventKey, [FromBody]MyDataClass eventData)
         {
-            await _workflowService.PublishEvent(eventName, eventKey, eventData);
+            await _workflowService.PublishEvent(eventName, eventKey, eventData.Value1);
             return Ok();
         }