How To create An API in creatio and access in postman

For creating An Api i was tried to create a webservice to retrive an email from employee section  in was published without any errors

below is the following code.


namespace Terrasoft.Configuration


    using System;

    using System.Configuration;

    using System.ServiceModel;

    using System.ServiceModel.Web;

    using System.ServiceModel.Activation;

    using Terrasoft.Common;

    using Terrasoft.Core;

    using Terrasoft.Web.Common;

    using Terrasoft.Core.Entities; 


    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Required)]

    public class UsrCustomConfigurationService : BaseService {



        [WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Wrapped,

            RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]

        public string EmployeeDetails(string Name) {

           // Default result.

            var result = " ";

            // The EntitySchemaQuery instance, addressing the Contact database table.

            var esq = new EntitySchemaQuery(UserConnection.EntitySchemaManager, "UsrEmployee");


            var Fname = esq.AddColumn("UsrFullName");

            var eid = esq.AddColumn("UsrEmailid");

             var esqFilter = esq.CreateFilterWithParameters(FilterComparisonType.Equal, "UsrFullName",Name);


            // Receiving query results.

            var entities = esq.GetEntityCollection(UserConnection);

            // If condtion the data received.

             if (entities.Count > 0)


                /* Return the "Id" column value of the first query result record. */

                result = entities[0].GetColumnValue("UsrEmailid").ToString();

                /* You can also use this option:

                result = entities[0].GetTypedColumnValue(colId.Name); */


            // Return result.

            return result;




Now, I am trying to access the webservice API from postman. But it was giving an error. I was attaching the image for reference. Whether I followed correct procedure or not?

If any other procdures to retrieve data.please,help us.

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Hello Keerthana Yenagandhula


I made a similar webservices a few weeks ago.

Here's a Creatio article explaining how to do it:…


And there is also the walkthrough to test it in Postmain…


I hope this will help you.




LAVIGNE Vincent,

LAVIGNE Vincent,

In my case, I am facing issue in Postman Issue.could please,help me I am unable to rectify this issue.

Keerthana Yenagandhula,



Please review all the headers and ensure that the settings are configured correctly.


Here is the documentation to get acquainted with:…


We will be glad to help with any other questions.

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