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CoAP
REST for tiny devices: CoAP brings HTTP-like GET/POST/PUT/DELETE to constrained nodes over UDP with a 4-byte header, optional confirmable reliability, Observe push, and DTLS security.
22 min read
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What is CoAP and why use it instead of HTTP?CoAP runs over unreliable UDP. How does it provide reliability when needed?What is CoAP Observe, and how does it compare to MQTT's model?What reachability problem does a CoAP device face that an MQTT device doesn't?What's the cost of securing CoAP, and how is it done?
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