The Qt CoAP module provides classes and functions to make CoAP programming simple and portable.
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Constrained Application Protocol CoAP is a machine-to-machine (M2M) web transfer protocol for use with constrained nodes and constrained networks in the Internet of Things (IoT). It is designed to easily interface with HTTP for integration with the Web, while meeting specialized requirements such as multicast support, very low overhead, and simplicity for constrained environments.
The Qt CoAP module implements the client side of CoAP defined by RFC 7252 . Generally, CoAP is designed to use datagram-oriented transport such as UDP, so the current implementation of the transport is based on UDP. However implementing custom transports based on TCP, WebSocket, and so on, is also possible.
The Qt CoAP module supports: