Let us take a simple rest service example here
http://www.rockycherry.net/services/Photos/photos.svc/photos
It returns the string “You have asked for photos”.
Within the plugin class add references to following assemblies.
The sample code of the plugin
namespace TestPlugin
{
public class Class1 : IPlugin
{
public void Execute(IServiceProvider serviceProvider)
{
IPluginExecutionContext context = (IPluginExecutionContext)serviceProvider.GetService(typeof(IPluginExecutionContext));
if (context.InputParameters.Contains("Target") && context.InputParameters["Target"] is Entity)
{
// using WebClient
WebClient webClient1 = new WebClient();
string data1 = webClient1.DownloadString("http://www.rockycherry.net/services/Photos/photos.svc/photos");
// using WebChannelFactory
WebChannelFactory<IPhotos> factory = new WebChannelFactory<IPhotos>(new Uri("http://www.rockycherry.net/services/Photos/photos.svc"));
IPhotos proxy = factory.CreateChannel();
string photos = proxy.GetPhotos();
}
}
}
[ServiceContract]
public interface IPhotos
{
[WebGet(UriTemplate = "Photos")]
[OperationContract]
string GetPhotos();
}
}
Register the plugin in Sandbox mode for CRM 2011 online.
Check this wonderful post for all the details
http://rockycherry.net/blog/?p=179
Hope it helps.
Nishant Rana's Weblog 