How to call the third-party api in restful style


The options in the applications section are exclude the restful api
How can we call a restful api and get such as json format data which can be use in process?
Thank you!


Hi, Tim.

There are multiple types of applications that you can use where you can implement REST API calls.
You can use the Assembly application for example.

1- Create your Class Library in Visual Studio where you’ll be able to launch your REST API call and make sure the object returned represents your JSON string.
2- Build the application and copy all the assembly files (.DLL) to ~\wfgen\bin
3- Create the application by indicating the name of your assembly file (ASSEMBLY_NAME.DLL) and the method used that returns the JSON string.

For more information regarding applications, kindly consult the following documentation:

Best Regards,


Hi Eddy
Thanks for reply, I have already add the .dll files and applications
How to use this application in the process, I want to show a drop-down list with the values returned from this application

This article does not show the detail in embed application to process


Hi, Tim

Since the returned value is a JSON string, you will need to retrieve the value in the .NET code-behind editor and bind the dropdown on page load.

One way to do it is to create a hidden TEXTBOX field and map the RETURN_VALUE data as a VALUE IN to that textbox.

Then in the .NET code behind editor, right after the page load, you can retrieve the JSON string and perform a databind to the desired dropdown list.

protected void Page_Load(object sender, EventArgs e)
	    base.Page_Load(sender, e);
            // retrieve JSON string from hidden textbox and bind dropdown list

Best Regards,


Hi Eddy

How to map the RETURN_VALUE to the hidden TEXTBOX ?


Hi Tim,

In the Form Designer,

1- Click on Mapping
2- Click on the action where you’re supposed to retrieve the returned value
3- Click on the VALUE IN of the textbox and select the data RETURN_VALUE.

Best Regards,


Hi Eddy

I already map the RETURN_VALUE to the hidden TEXTBOX by add a new action with my application type and set the VALUE_IN to the TEXTBOX, but there was no value show in the field
Is it possible to run a small test for the specific application in workflowgen?

.dll source code

public static string getMember()
var url = “”;
var client = new RestClient(url);
IRestResponse response = client.Execute(new RestRequest());
return response.Content;


Hi Eddy

Can you help me?
Thank you.


Hi Tim,

Sorry for the delay.
Kindly open a new ticket on our Helpdesk so we can assist you with your issue.

Best Regards,