Web Services (Client) Commands

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4D v17.4

Starting with version 2003, 4D supports“Web Services”, meaning that the program enables you to publish (server part) and/or use (client part) Web Services directly from your database. A Web Service is a set of functions published on a network. These functions can be called and used by any application compatible with Web Services and connected to a network. Web Services can carry out all types of tasks, such as supervising the routing of packages at a transporter’s, e-commerce, monitoring market values, etc.

For more information about the concept and operation of Web Services, refer to the Design Reference manual.

Subscription to Web Services with 4D is easy to carry out using the Web Services Wizard. In most cases, this Wizard will be sufficient for you to be able to use Web Services. However, if you want to customize certain mechanisms, you must use the client SOAP commands of 4D.

This section describes the commands used for subscription to external Web Services (client part). For a description of the commands used for the publication of Web Services (server part), refer to the Web Services (Server) Commands theme.

Note: By convention, the terms “SOAP” and “Web Service” have been used to differentiate between command (and constant) names on the server and client side, respectively. These two concepts refer to the same technology.