https://skmtc.net/aws/apis/iot-data/docs/things/:thingName/shadow/get 2026-07-14 0.5 https://skmtc.net/aws/apis/iot-data/docs/things/:thingName/shadow/post 2026-07-14 0.5 https://skmtc.net/aws/apis/iot-data/docs/things/:thingName/shadow/delete 2026-07-14 0.5 https://skmtc.net/aws/apis/iot-data/docs/retainedMessage/:topic/get 2026-07-14 0.5 https://skmtc.net/aws/apis/iot-data/docs/api/things/shadow/ListNamedShadowsForThing/:thingName/get 2026-07-14 0.5 https://skmtc.net/aws/apis/iot-data/docs/retainedMessage/get 2026-07-14 0.5 https://skmtc.net/aws/apis/iot-data/docs/topics/:topic/post 2026-07-14 0.5