In the previous section, we created a WCF project by using the WCF Service Library template. In this section, we will create the service interface layer contracts.
As two sample files have already been created for us, we will try to re-use them as much as possible. Then we will start customizing these two files to create the service contracts.
To create the
service interfaces, we need to open the
IService1.cs file and do the following: