How to use HttpSend activity in 2013 workflow

Question

I'm trying to call a .Net (asmx) web service that takes a UTC date and returns the local date.

An input to the web service could look like this: 2015-04-30T23:00:00Z
The output from this call will look like this:

<?xml version="1.0" encoding="UTF-8"?>
<string xmlns="http://tempuri.org/">5/1/2015 12:00:00 AM</string>

I'm new to web services; I want to use the HttpSend activity in my 2013 workflow but apart from Uri, which is obvious, I'm not sure what to put into each of the fields?

The web service code:

namespace spLeaveBooking.WebServices
{
    public class GetLocalTime : WebService
    {
        [WebMethod]
        public string GetLocalTimePlease(string inputDateTime)
        {
            DateTime dateTime = DateTime.Parse(inputDateTime);
            return dateTime.ToLocalTime().ToString();
        }
    }
}

Answer 1

Please try following configuration for HttpSend activity:

1. RequestHeader - Accept:"text/html; charset=utf-8", Content-Type:"text/html; charset=utf-8".
2. Uri: URL to access the webservice method.Pass the parameter in querystring. eg: string.Format(".../GetLocalTime.asmx/GetLocalTimePlease/{0}",dateTimeVariable)

Or

string.Format(".../GetLocalTime.asmx/GetLocalTimePlease?inputDateTime={0}",dateTimeVariable)

3. ResponseContent : Specify the workflow variable which will store the data returned from webservice.

Now after the HttpSend action, you will have to parse the webservice response, stored in the workflow variable. For this use GetDynamicValueProperty<T> activity.

Edit: Let's say the webservice returns object of below class:

class ReturnData { public string returnDate{ get; set; } }

Then your Workflow variable, will be an object of class ReturnData , then you will need to to do below configuration to parse it:

PropertyName:"returnDate", Source: Name of the workflow variable which has the webservice response content

Other reference links:

1. See this solution to know about parsing the dynamic values.
2. See this code solution for HttpSend Activity calling WCF

Answer 2

Put a dynamic value variable in the response content box and put this in the RequestHeader box:

Then after the HttpSend activity add a GetDynamicValue activity in which you extract the values you need: