CoAP

RFC 7252 The Constrained Application Protocol (CoAP)

CoAP 是受限环境下的client->server文本消息协议，使用UDP传输，协议交互类似于简化版的HTTP。

传输层加密可用DTLS。

参考资料

• The Constrained Application Protocol (CoAP)

• MQTT and CoAP, IoT Protocols

• Constrained Application Protocol for Internet of Things

• What is CoAP IoT protocol | CoAP Architecture,message header

• CoAP