CreateProcInst : The remote server returned an error: (400) Bad Request.

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Prakashkumar Nambi

• June 26, 2023 10:12

Hi Team,

I am getting "The remote server returned an error: (400) Bad Request."  with Status : "ProtocolError" while creating process using the below code.

 public static string CreateProcInstEx(string PID, string PIID, string PIName, string workObjectID,

        string superPIID, string initiator, string customID, IEnumerable<NameValue> attributes, bool startImmediately)

        {

            string url = $"{WebConfig.AppSettings[$"{WFConst.constAdminSettings}:{WFConst.constWorkflowUrl}"]}CreateProcInst";

 

            #region Json Object

 

            dynamic jsonRequestData = new JObject();

 

            jsonRequestData.ProcessID = PID;

            jsonRequestData.ProcessInstID = PIID;

            jsonRequestData.ProcInstName = PIName;

            jsonRequestData.WorkObjID = workObjectID;

            jsonRequestData.WorkObjInfo = "";

            jsonRequestData.SuperProcInstID = superPIID ?? "";

            jsonRequestData.Initiator = initiator;

            jsonRequestData.CustomID = customID;

            jsonRequestData.Attributes = JsonConvert.SerializeObject(attributes);

            jsonRequestData.blnStartImmediately = startImmediately;

 

            #endregion

 

            string _jsonString = JsonConvert.SerializeObject(jsonRequestData);

 

HTTPOperations ops = new HTTPOperations(domain, this.userName,password, appID, locale);

 

            string respose = ops.POSTMethod(url, _jsonString);

 

            string eventID = null;           

        }

 

can you please help me to find where am coding wrong.

 

Thanks.

 

1

• 

  Venkat A

  • June 29, 2023 05:05

  Hi Prakash,

  Try the below code. 

  public static string CreateProcInstEx(string PID, string PIID, string PIName, string workObjectID,

          string superPIID, string initiator, string customID, IEnumerable<NameValue> attributes, bool startImmediately)

          {

              string url = $"{WebConfig.AppSettings[$"{WFConst.constAdminSettings}:{WFConst.constWorkflowUrl}"]}CreateProcInst";

   

              #region Json Object

   

              dynamic jsonRequestData = new ExpandoObject();

   

              jsonRequestData.ProcessID = PID;

              jsonRequestData.ProcessInstID = PIID;

              jsonRequestData.ProcInstName = PIName;

              jsonRequestData.WorkObjID = workObjectID;

              jsonRequestData.WorkObjInfo = "";

              jsonRequestData.SuperProcInstID = superPIID ?? "";

              jsonRequestData.Initiator = initiator;

              jsonRequestData.CustomID = customID;

              jsonRequestData.Attributes = attributes.ToArray();

              jsonRequestData.blnStartImmediately = startImmediately;

   

              #endregion

   

              string _jsonString = JsonConvert.SerializeObject(jsonRequestData);

   

  HTTPOperations ops = new HTTPOperations(domain, this.userName,password, appID, locale);

   

              string respose = ops.POSTMethod(url, _jsonString);

   

              string eventID = null;           

          }

   

  Modification: The parameter attributes should be in array, but in that code attributes are sent as string .

   

  Thanks,

  Venkat

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