About null Values

The service does not include XML attributes or JSON properties for null values. They are omitted to save space and time.

However, when sending data to the service, callers may omit fields. In this case, these fields are not nulled out. To send a null value, pass the word "NULL" in upper-case.

Examples

For example, if you had a widget with an id integer field, an is_active boolean field and a descr String field, it might look like:

XML

Sending this widget to the service will not null out the descr field.

<widget id="1" is_active="Y"/>

Sending this widget to the service will null out the descr field.

<widget id="1" is_active="Y" descr="NULL"/>

JSON

Sending this widget to the service will not null out the descr field.

{"__type":"widget", "id":"1", "is_active":"Y"}

Sending this widget to the service will null out the descr field.

{"__type":"widget", "id":"1", "is_active":"Y", "descr":"NULL"}