Web Services : Calling Services

Calling Services
The easiest way to call a service from an existing application is to select the Insert Service Call and Response... menu item from the Page Flow Editor. This launches the Service Invocation wizard, which creates a service call Page and a service response Page. As you step through the wizard, you select and configure the service operation that you want on the service call Page.
The Service Invocation wizard provides different steps for different types of services but for the most part it is straightforward. The only tricky part is the Configure Message Parts screen (this screen does not appear for RSS services). Here you specify how you want to populate the service parameters that you chose to include in the service call. On this screen, you choose to get the parameter value from one of three places:
Form Input: Use the Form Input option to create a Form input field in which the user types a value to populate the message part.
Service Constant: Use the Service Constant option to populate the message part with a service parameter. You can edit service constants for the application even after deployment.
Constant: Use the Constant option to specify a constant value for the message part. Unlike Service constants, you cannot change constant values after deployment.
Related Topics:
Service Definition Files
Services
How the Files Work Together
The Data Service
Registering Services
Creating Your Own Services

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