Consuming external web services in Dynamics 365 for Finance and operations

Reference Source Link: https://docs.microsoft.com/en-us/dynamics365/unified-operations/dev-itpro/data-entities/services-home-page 

Consuming external web services

In previous versions, you could consume web services from X++ code by adding Microsoft Visual Studio projects as a reference and by using Aif::CreateServiceClient. This scenario is supported, but the steps have changed. Application Integration Framework (AIF) is no longer supported. The following steps show how to consume an external StockQuote service from X++.

1. Create a new Class Library project in Visual Studio, and name it ExternalServiceLibrary.csproj.
2. In the Visual Studio project, add a service reference to the external web service: http://www.webservicex.net/stockquote.asmx
3. Create a new static class, and wrap the StockQuote service operation as shown in the following example.
4.       public static string GetQuote(string s)
           {
               var binding = new System.ServiceModel.BasicHttpBinding();
               var endpointAddress = new EndpointAddress("http://www.webservicex.net/stockquote.asmx");
               ServiceLibrary.QuoteReference.StockQuoteSoapClient client = new ServiceLibrary.QuoteReference.StockQuoteSoapClient(binding, endpointAddress);
   
               //GetQuote is the operation on the StockQuote service
               return client.GetQuote("MSFT");
           }

5. Build the project. The binary ExternalServiceLibrary.dll is created.
6. Create a new Dynamics project in Visual Studio.
7. Add ExternalServiceLibrary.dll as a reference.
8. In the X++ class, you can use the external web services that were referenced in ExternalesrviceLibrary.dll.
9.    public static void main(Args _args)
       {
           info(ServiceLibrary.StockQuoteClass::GetQuote("MSFT"));
       }