Coap observe client and server using NCShttps://devzone.nordicsemi.com/f/nordic-q-a/89395/coap-observe-client-and-server-using-ncsI have implemented the example Coap Client and Coap Server using NCS 1.9.1 on two nRF52840DKs I would like to use the observer/observed approach to update clients when a resource changes on the server. Is this supported? I see there are such examplesen-USTelligent Community 13Tue, 28 Jun 2022 14:10:27 GMTRE: Coap observe client and server using NCShttps://devzone.nordicsemi.com/thread/374576?ContentTypeID=1Tue, 28 Jun 2022 14:10:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c1e3ece1-bce5-4067-911d-3e491fe9656fJ&#248;rgen Holmefjord<p>Hi,</p> <p>The <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/zephyr/reference/networking/coap.html">Zephyr CoAP library</a> implements support for&nbsp;<a href="https://tools.ietf.org/html/rfc7641">RFC7641: Observing Resources in the Constrained Application Protocol (CoAP)</a>, which I believe is what you are looking for? Have a look at <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/zephyr/reference/networking/coap.html#c.coap_observer_init">coap_observer_init</a><span>() and below functions.</span></p> <p><span>I&#39;m not aware of any examples that shows the usage of this API.</span></p> <p><span>Best regards,<br />Jørgen</span></p><div style="clear:both;"></div>