RE: Alerts and Logs over CoAP

kurreman — Wed, 20 Mar 2024 03:09:01 GMT

Hello Maria,

Thank you for a thorough answer, it's really appreciated! I'll definitely keep using the modem trace approach for future packet inspections.

Cheers,

Koray

RE: Alerts and Logs over CoAP

Maria Gilje — Tue, 19 Mar 2024 14:46:17 GMT

Hi Koray,

Short answer: When CoAP is enabled, the alerts are sent with CoAP.

Longer explanation:

By searching in the source code related to the sample you can see that alerts are supported over CoAP. You can see that the nrf_cloud_coap.h file is included in the nrf/subsys/net/lib/nrf_cloud/nrf_cloud_alert.c file here on GitHub. The alert send function is defined on lines 150-191 and has logs on the error and debug levels.

To verify that the alert sending is using the CoAP definition of nrf_cloud_alert_send() you can enable logging at a debug level by replacing CONFIG_NRF_CLOUD_LOG_LOG_LEVEL_INF=y with CONFIG_NRF_CLOUD_LOG_LOG_LEVEL_DBG=y in overlay_coap.conf.

Alternatively you can do a modem trace which you can convert into a .pcap format through Cellular Monitor to inspect the packets in Wireshark. The inspection should show that the packets are using CoAP.

Best regards,

Maria