March 2018
Beginner to intermediate
410 pages
10h 40m
English
Content preview from Mastering Internet of Things
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Discovering resources using CoRE
We've already mentioned CoRE in the previous chapter. The CoAP protocol is an artefact published by the IETF CoRE Working Group. Another artefact is the CoRE Link Format, which we've used to find what resources are available on a device. By performing a GET method call on the /.well-known/core resource, the caller will receive a Link Format document, briefly describing what resources are available on the device, and some minimal set of corresponding information, such as if the resource is observable or not.
The following is an example Link Format document, generated by our SensorCoap application developed in the previous chapter. New lines have been added for readability. Resources are separated by commas ...
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