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Constrained Application Protocol (CoAP) Tutorial

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Published on May 9, 2014

Zach Shelby gives a deep dive tutorial on constrained protocol.
CoAP is an embedded web transfer protocol for constrained devices. It's a very efficient RESTful protocol specialized for IoT applications with a simple 4 byte header. It uses asynchronous transaction model, UDP binding with reliability and multicast. Some of the other features of CoAP include
• DTLS based PSK, RPK and Certificate security
• Subset of MIME types and HTTP response codes
• Built-in resource discovery
• Optional observation and block transfer
• Supports URI and GET, POST, PUT, DELETE methods

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