Understanding Web Service References

To utilize Web services in Oracle Application Express, you create a Web service reference using a wizard. Each Web service reference is based on a Web Services Description Language (WSDL) document that describes the target Web service. When you create a Web service reference, the wizard analyzes the WSDL and collects all the necessary information to create a valid SOAP message, including:

The URL used to post the SOAP request over HTTP
A Universal Resource Identifier (URI) identifying the SOAP HTTP request
Operations of the Web Service
Input parameters for each operation
Output parameters for each operation

Accessing the Web Service References Page

You manage Web service references on the Web Service References page.

To access the Web Service References page:

On the Database Home Page, click the Application Builder icon.
Select an application.

Application Builder appears.
Click Shared Components.

The Shared Components page appears.
Under Logic, select Web Service References.

The Web Service References page appears.

Specifying an Application Proxy Server Address

If your environment requires a proxy server to access the Internet, you must specify a proxy server address on the Application Attributes page before you can create a Web service reference.

To specify a proxy address for an application:

On the Database Home Page, click the Application Builder icon.
Select an application.

Application Builder appears.
Click Edit Attributes.
Click Edit Standard Attributes.
Under Application Definition, enter the proxy server in Proxy Server.
Click Apply Changes.