IQ Packet

IQ implements RFC 6120 - A.5 Client Namespace (a part) RFC 3920 Section 9.2.3 - IQ Semantics

Info/Query, or IQ, is a request-response mechanism, similar in some ways to HTTP. The semantics of IQ enable an entity to make a request of, and receive a response from, another entity. The data content of the request and response is defined by the namespace declaration of a direct child element of the IQ element, and the interaction is tracked by the requesting entity through use of the 'id' attribute. Thus, IQ interactions follow a common pattern of structured data exchange such as get/result or set/result (although an error may be returned in reply to a request if appropriate).

"ID" Attribute

IQ Stanzas require the ID attribute be set.

"Type" Attribute

• :get -- The stanza is a request for information or requirements.

• :set -- The stanza provides required data, sets new values, or replaces existing values.

• :result -- The stanza is a response to a successful get or set request.

• :error -- An error has occurred regarding processing or delivery of a previously-sent get or set (see Stanza Errors).