Workflow as Web Service

Sometimes you may need to expose the workflow as a web service. So, let’s take a look on how you can create a simple workflow and expose it as a web service

We can divide the task into two.
1. Creating a workflow compitable with webservice.
2. Expose it as a webservice.

Sequential Workflow Console Application	Sequential Workflow Library
Workflow as Web Service

We need three activity for this project WebServiceInput, WebServiceOutput & WebServiceFault.

Create a Sequential Workflow Library project

1. Drag a WebServiceInput on workflow

We need to create an interface which will act as the contract for our operation

namespace Arindam.WWF
{
[ServiceContract]
public interface IService
{
[OperationContract]
string GetEmployee(int EmpID);

}
}

2. Then drag a ifelseActivity condition block on workflow.

In left side of ifelse drag a codeactivity (name as per your bisiness object).

Then drag a WebServiceOutput activity just below that.

3. WebServiceFault is the exception thrown by service object .



4. Finally Publish, right click on project and click publish as webservice.

Click here to download code sample