CoAP

Constrained Application Protocol remains one of the most efficient protocol for low power devices. Let's see how CoAP is implemented with IOTIFY

CoAP is based on UDP and has built in mechanism for ensuring reliable delivery. For a good overview of CoAP, please see the following guides

http://www.programmingwithreason.com/article-iot-coap.htmlwww.programmingwithreason.com

Another interesting tutorial

CoAP Protocol: Step-by-Step Guide - DZone IoTdzone.com

In IoTIFY CoAP protocol settings we allow following fields to be configured

Method: CoAP method, which could be GET/POST/PUT/DELETE

Host: The CoAP Host name or IP address, followed by the port number (if not default)

Path: The CoAP server URL, where the message should be sent to. If you are using a query string, that must be the part of URL itself.

Confirm: Whether the message should be sent as (Conformable) CON or (Unacknowledged) NON

Observe: Whether the resource should be observed and any changes should be sent back to the client. The response handler function will be invoked if a change is detected.

Additional Headers: Any additional header which must be sent along with the payload.

Timeout: The timeout value to wait before declaring a non confirmed message a failure.