How to debug JMeter the error JsonToken EndArray is not valid - jmeter

Question

Before hand will be some images as I don't know how to explain them better.
I have an HTTP Request POST that has the parameters below:
{"ShiftId":${Param_S02_ShiftId},"Date":null,"StartTime":"${Param_S02_Pick_Date}T00:00:00.000Z","EndTime":"${Param_S02_Pick_Date}T23:00:00.000Z","RouteTemplateId":${Param_S02_RouteTemplateId},"VehicleId":${Param_S02_VehicleId},"SelectedEmployees":[{"RouteTemplateRoleId":${Param_S02_RoleId_1_driver},"EmployeeId":${Param_S02_1_driver}},{"RouteTemplateRoleId":${Param_S02_RoleId_2_driver},"EmployeeId":${Param_S02_2_driver}],"TeamBoardId":${Param_S02_Teamboard}}
As you can see this is the same API sent by the browser
The problem is that I am getting this error message that I could not find the solution aroud.
{"message": "JsonToken EndArray is not valid for closing JsonType Object. Path 'SelectedEmployees1', line 1, position 237.","type":"Newtonsoft.Json.JsonReaderException","stackTrace":" at Newtonsoft.Json.JsonReader.ValidateEnd(JsonToken endToken)\r\n at Newtonsoft.Json.JsonTextReader.ParsePostValue(Boolean ignoreComments)\r\n at Newtonsoft.Json.JsonTextReader.Read()\r\n at Newtonsoft.Json.Linq.JContainer.ReadContentFrom(JsonReader r, JsonLoadSettings settings)\r\n at Newtonsoft.Json.Linq.JContainer.ReadTokenFrom(JsonReader reader, JsonLoadSettings options)\r\n at Newtonsoft.Json.Linq.JObject.Load(JsonReader reader, JsonLoadSettings settings)\r\n at ApiService.EntityObjectServiceController2.ParseSaveRequestAsync() in C:\\a\\1\\s\\API\\src\\Framework\\ApiService\\EntityObjectServiceController.NETStandard.cs:line 151\r\n at ApiService.EntityObjectServiceController2.Create() in C:\a\1\s\API\src\Framework\ApiService\EntityObjectServiceController.NETStandard.cs:line 123\r\n at lambda_method3708(Closure , Object )\r\n at g__Awaited|26_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)"}
Do I need to add something in the Header?
Maybe is something with this part of the call where I have 0 and 1

Answer 1

You're sending an invalid JSON, your SelectedEmployees array is missing closing bracked ], my expectation is that you need to amend your payload to something like:
{
"ShiftId": ${Param_S02_ShiftId},
"Date": null,
"StartTime": "${Param_S02_Pick_Date}T00:00:00.000Z",
"EndTime": "${Param_S02_Pick_Date}T23:00:00.000Z",
"RouteTemplateId": ${Param_S02_RouteTemplateId},
"VehicleId": ${Param_S02_VehicleId},
"SelectedEmployees": [
{
"RouteTemplateRoleId": ${Param_S02_RoleId_1_driver},
"EmployeeId": ${Param_S02_1_driver}
},
{
"RouteTemplateRoleId": ${Param_S02_RoleId_2_driver},
"EmployeeId": ${Param_S02_2_driver}
}
],
"TeamBoardId": ${Param_S02_Teamboard}
}
once you start sending syntactically correct JSON at least this error will go away, you can test it against i.e. online JSON validator
Going forward given you're capable of successfully execute the request using your browser you can just record it using JMeter's HTTP(S) Test Script Recorder or JMeter Chrome Extension