After running the gateway and sub-device sample code,on the device and in the IoT Platform console, you can view the logs.
Prerequisites
The gateway and sub-device sample code provided by Link SDK for C has been run. For more information, see Usage example.
Device logs
You can view logs on the gateway device.
- The following log data indicates that the gateway is connected to IoT Platform:
[1625220273.644][LK-0313] MQTT user calls aiot_mqtt_connect api, connect [1625220273.644][LK-0317] LightSwitchGW&a18wP****** [1625220273.644][LK-0318] 29F9969F10F1AE9728977EA79D31DAC85981B101761E8887548CD4685D****** core_sysdep_network_establish host iot-06******.mqtt.iothub.aliyuncs.com port 443, type 0 establish tcp connection with server(host='a18wP******.iot-as-mqtt.cn-shanghai.aliyuncs.com', port=[443]) success to establish tcp, fd=3 local port: 41574 [1625220273.677][LK-1000] establish mbedtls connection with server(host='a18wP******.iot-as-mqtt.cn-shanghai.aliyuncs.com', port=[443]) [1625220273.744][LK-1000] success to establish mbedtls connection, (cost 44947 bytes in total, max used 47859 bytes) [1625220273.744][LK-0319] a18wP******.LightSwitchGW|timestamp=2524608000000,_ss=1,_v=sdk-c-4.1.0,securemode=2,signmethod=hmacsha256,ext=3,_conn=tls_66| [1625220273.811][LK-0313] MQTT connect success in 168 ms [1625220273.811][LK-0317] cid[10] connected, online channel 10 - If you specify that topological relationships are automatically added, the gateway is connected to IoT Platform. Then, you can use the
/ext/session/a18wP******/LightSwitchGW/combine/batch_logintopic of the gateway to send a request to IoT Platform to connect multiple sub-devices to IoT Platform.[1625466501.399][LK-0309] pub[2]: /ext/session/a18wP******/LightSwitchGW/combine/batch_login [LK-030A] > 7B 22 69 64 22 3A 22 32 22 2C 22 76 65 72 73 69 | {"id":"2","versi [LK-030A] > 6F 6E 22 3A 22 31 2E 30 22 2C 22 70 61 72 61 6D | on":"1.0","param [LK-030A] > 73 22 3A 7B 22 73 69 67 6E 4D 65 74 68 6F 64 22 | s":{"signMethod" [LK-030A] > 3A 22 68 6D 61 63 53 68 61 32 35 36 22 2C 22 64 | :"hmacSha256","d [LK-030A] > 65 76 69 63 65 4C 69 73 74 22 3A 5B 7B 22 70 72 | eviceList":[{"pr [LK-030A] > 6F 64 75 63 74 4B 65 79 22 3A 22 67 37 68 30 69 | oductKey":"a13FN [LK-030A] > 75 38 54 74 31 61 22 2C 22 64 65 76 69 63 65 4E | ******","deviceN [LK-030A] > 61 6D 65 22 3A 22 4C 69 67 68 74 53 77 69 74 63 | ame":"LightSwitc [LK-030A] > 68 5F 53 75 62 44 65 76 5F 30 31 22 2C 22 63 6C | h_SubDev_01","cl [LK-030A] > 69 65 6E 74 49 64 22 3A 22 67 37 68 30 69 75 38 | ientId":"a13FN** [LK-030A] > 54 74 31 61 2E 4C 69 67 68 74 53 77 69 74 63 68 | ****.LightSwitch [LK-030A] > 5F 53 75 62 44 65 76 5F 30 31 22 2C 22 74 69 6D | _SubDev_01","tim [LK-030A] > 65 73 74 61 6D 70 22 3A 22 31 36 32 35 34 36 36 | estamp":"1625466 [LK-030A] > 35 30 31 33 39 36 22 2C 22 63 6C 65 61 6E 53 65 | 501396","cleanSe [LK-030A] > 73 73 69 6F 6E 22 3A 22 66 61 6C 73 65 22 2C 22 | ssion":"false"," [LK-030A] > 73 69 67 6E 22 3A 22 30 46 41 45 38 43 33 43 33 | sign":"0FAE8C3C3 [LK-030A] > 34 38 44 35 30 37 38 38 43 41 42 38 38 42 36 44 | 48D50788CAB88B6D [LK-030A] > 39 44 34 34 43 35 44 35 36 46 45 46 44 42 33 45 | 9D44C5D56FEFDB3E [LK-030A] > 43 46 41 30 30 35 38 37 32 30 41 43 34 45 37 43 | CFA0058720AC4E7C [LK-030A] > 46 36 44 36 34 44 36 22 7D 2C 7B 22 70 72 6F 64 | F******"},{"prod [LK-030A] > 75 63 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 | uctKey":"a13FN** [LK-030A] > 54 74 31 61 22 2C 22 64 65 76 69 63 65 4E 61 6D | ****","deviceNam [LK-030A] > 65 22 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F | e":"LightSwitch_ [LK-030A] > 53 75 62 44 65 76 5F 30 32 22 2C 22 63 6C 69 65 | SubDev_02","clie [LK-030A] > 6E 74 49 64 22 3A 22 67 37 68 30 69 75 38 54 74 | ntId":"a13FN**** [LK-030A] > 31 61 2E 4C 69 67 68 74 53 77 69 74 63 68 5F 53 | **.LightSwitch_S [LK-030A] > 75 62 44 65 76 5F 30 32 22 2C 22 74 69 6D 65 73 | ubDev_02","times [LK-030A] > 74 61 6D 70 22 3A 22 31 36 32 35 34 36 36 35 30 | tamp":"162546650 [LK-030A] > 31 33 39 36 22 2C 22 63 6C 65 61 6E 53 65 73 73 | 1396","cleanSess [LK-030A] > 69 6F 6E 22 3A 22 66 61 6C 73 65 22 2C 22 73 69 | ion":"false","si [LK-030A] > 67 6E 22 3A 22 33 31 36 45 45 36 35 37 33 46 31 | gn":"316EE6573F1 [LK-030A] > 35 37 33 38 36 32 41 34 42 37 35 39 45 32 35 42 | 573862A4B759E25B [LK-030A] > 43 32 34 41 32 30 33 44 35 30 31 43 41 30 42 35 | C24A203D501CA0B5 [LK-030A] > 31 44 30 35 30 30 41 32 32 45 34 39 46 42 38 38 | 1D0500A22E49FB88 [LK-030A] > 39 46 32 42 35 22 7D 2C 7B 22 70 72 6F 64 75 63 | *****"},{"produc [LK-030A] > 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 | tKey":"g7h0i**** [LK-030A] > 31 61 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 | **","deviceName" [LK-030A] > 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 | :"LightSwitch_Su [LK-030A] > 62 44 65 76 5F 30 33 22 2C 22 63 6C 69 65 6E 74 | bDev_03","client [LK-030A] > 49 64 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 | Id":"a13FN****** [LK-030A] > 2E 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 | .LightSwitch_Sub [LK-030A] > 44 65 76 5F 30 33 22 2C 22 74 69 6D 65 73 74 61 | Dev_03","timesta [LK-030A] > 6D 70 22 3A 22 31 36 32 35 34 36 36 35 30 31 33 | mp":"16254665013 [LK-030A] > 39 36 22 2C 22 63 6C 65 61 6E 53 65 73 73 69 6F | 96","cleanSessio [LK-030A] > 6E 22 3A 22 66 61 6C 73 65 22 2C 22 73 69 67 6E | n":"false","sign [LK-030A] > 22 3A 22 37 31 30 43 44 43 37 31 36 34 34 35 36 | ":"710CDC7164456 [LK-030A] > 43 39 43 45 41 36 44 39 43 33 30 41 35 44 38 30 | C9CEA6D9C30A5D80 [LK-030A] > 32 33 42 41 32 46 46 45 42 30 32 41 33 46 36 37 | 23BA2FFEB02A3F67 [LK-030A] > 35 41 37 41 34 39 32 34 33 45 33 33 41 32 31 45 | 5A7A49243E33A21E [LK-030A] > 36 36 44 22 7D 2C 7B 22 70 72 6F 64 75 63 74 4B | ***"},{"productK [LK-030A] > 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 | ey":"a13FN****** [LK-030A] > 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 | ","deviceName":" [LK-030A] > 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 | LightSwitch_SubD [LK-030A] > 65 76 5F 30 34 22 2C 22 63 6C 69 65 6E 74 49 64 | ev_04","clientId [LK-030A] > 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 2E 4C | ":"a13FN******.L [LK-030A] > 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 | ightSwitch_SubDe [LK-030A] > 76 5F 30 34 22 2C 22 74 69 6D 65 73 74 61 6D 70 | v_04","timestamp [LK-030A] > 22 3A 22 31 36 32 35 34 36 36 35 30 31 33 39 36 | ":"1625466501396 [LK-030A] > 22 2C 22 63 6C 65 61 6E 53 65 73 73 69 6F 6E 22 | ","cleanSession" [LK-030A] > 3A 22 66 61 6C 73 65 22 2C 22 73 69 67 6E 22 3A | :"false","sign": [LK-030A] > 22 38 42 35 39 39 34 44 32 39 37 32 45 43 37 46 | "8B5994D2972EC7F [LK-030A] > 42 36 46 42 31 39 39 32 30 39 36 39 43 39 37 31 | B6FB19920969C971 [LK-030A] > 31 44 38 34 45 36 45 42 32 42 36 37 46 41 39 35 | 1D84E6EB2B67FA95 [LK-030A] > 31 43 33 42 34 35 31 41 38 31 39 41 30 44 32 44 | 1C3B451A819***** [LK-030A] > 45 22 7D 5D 7D 7D | *"}]}} - If you do not specify that topological relationships are automatically added, the following logs are generated:
- The following log data indicates that the connected gateway sends a request to IoT Platform to add a topological relationship by using the
/sys/a18wP******/LightSwitchGW/thing/topo/addtopic:[1625466499.399][LK-0309] pub: /sys/a18wP******/LightSwitchGW/thing/topo/add [LK-030A] > 7B 22 69 64 22 3A 22 31 22 2C 22 76 65 72 73 69 | {"id":"1","versi [LK-030A] > 6F 6E 22 3A 22 31 2E 30 22 2C 22 70 61 72 61 6D | on":"1.0","param [LK-030A] > 73 22 3A 5B 7B 22 70 72 6F 64 75 63 74 4B 65 79 | s":[{"productKey [LK-030A] > 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 22 2C | ":"a13FN******", [LK-030A] > 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 4C 69 | "deviceName":"Li [LK-030A] > 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 76 | ghtSwitch_SubDev [LK-030A] > 5F 30 31 22 2C 22 63 6C 69 65 6E 74 49 64 22 3A | _01","clientId": [LK-030A] > 22 67 37 68 30 69 75 38 54 74 31 61 2E 4C 69 67 | "a13FN******.Lig [LK-030A] > 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 76 5F | htSwitch_SubDev_ [LK-030A] > 30 31 22 2C 22 74 69 6D 65 73 74 61 6D 70 22 3A | 01","timestamp": [LK-030A] > 22 31 36 32 35 34 36 36 34 39 39 33 39 36 22 2C | "1625466499396", [LK-030A] > 22 73 69 67 6E 6D 65 74 68 6F 64 22 3A 22 68 6D | "signmethod":"hm [LK-030A] > 61 63 53 68 61 32 35 36 22 2C 22 73 69 67 6E 22 | acSha256","sign" [LK-030A] > 3A 22 33 44 44 32 38 36 39 45 30 45 37 46 35 43 | :"3DD2869E0E7F5C [LK-030A] > 41 37 46 43 35 46 30 30 36 37 30 36 44 38 33 45 | A7FC5F006706D83E [LK-030A] > 44 36 46 46 39 35 38 39 46 43 35 43 32 33 45 45 | D6FF9589FC5C23EE [LK-030A] > 32 44 33 41 46 39 33 39 31 44 46 42 46 32 31 30 | 2D3AF9391DFB**** [LK-030A] > 37 34 22 7D 2C 7B 22 70 72 6F 64 75 63 74 4B 65 | **"},{"productKe [LK-030A] > 79 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 22 | y":"a13FN******" [LK-030A] > 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 4C | ,"deviceName":"L [LK-030A] > 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 | ightSwitch_SubDe [LK-030A] > 76 5F 30 32 22 2C 22 63 6C 69 65 6E 74 49 64 22 | v_02","clientId" [LK-030A] > 3A 22 67 37 68 30 69 75 38 54 74 31 61 2E 4C 69 | :"a13FN******.Li [LK-030A] > 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 76 | ghtSwitch_SubDev [LK-030A] > 5F 30 32 22 2C 22 74 69 6D 65 73 74 61 6D 70 22 | _02","timestamp" [LK-030A] > 3A 22 31 36 32 35 34 36 36 34 39 39 33 39 36 22 | :"1625466499396" [LK-030A] > 2C 22 73 69 67 6E 6D 65 74 68 6F 64 22 3A 22 68 | ,"signmethod":"h [LK-030A] > 6D 61 63 53 68 61 32 35 36 22 2C 22 73 69 67 6E | macSha256","sign [LK-030A] > 22 3A 22 34 39 44 38 31 43 44 43 44 41 39 31 30 | ":"49D81CDCDA910 [LK-030A] > 37 36 34 45 32 43 39 42 43 39 44 35 46 31 33 30 | 764E2C9BC9D5F130 [LK-030A] > 31 30 35 44 34 38 37 42 34 43 34 33 33 41 31 39 | 105D487B4C433A19 [LK-030A] > 36 35 32 35 46 33 46 41 38 38 39 31 37 37 30 38 | 6525F3FA88917*** [LK-030A] > 36 31 35 22 7D 2C 7B 22 70 72 6F 64 75 63 74 4B | ***"},{"productK [LK-030A] > 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 | ey":"a13FN****** [LK-030A] > 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 | ","deviceName":" [LK-030A] > 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 | LightSwitch_SubD [LK-030A] > 65 76 5F 30 33 22 2C 22 63 6C 69 65 6E 74 49 64 | ev_03","clientId [LK-030A] > 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 2E 4C | ":"a13FN******.L [LK-030A] > 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 | ightSwitch_SubDe [LK-030A] > 76 5F 30 33 22 2C 22 74 69 6D 65 73 74 61 6D 70 | v_03","timestamp [LK-030A] > 22 3A 22 31 36 32 35 34 36 36 34 39 39 33 39 36 | ":"1625466499396 [LK-030A] > 22 2C 22 73 69 67 6E 6D 65 74 68 6F 64 22 3A 22 | ","signmethod":" [LK-030A] > 68 6D 61 63 53 68 61 32 35 36 22 2C 22 73 69 67 | hmacSha256","sig [LK-030A] > 6E 22 3A 22 44 33 30 31 46 30 33 31 42 45 37 38 | n":"D301F031BE78 [LK-030A] > 33 44 42 41 35 42 33 33 42 39 44 43 45 30 32 39 | 3DBA5B33B9DCE029 [LK-030A] > 38 33 42 41 30 31 42 46 39 37 46 34 34 32 32 43 | 83BA01BF97F4422C [LK-030A] > 33 39 45 30 31 44 34 32 41 39 34 41 41 37 45 45 | 39E01D42A94AA*** [LK-030A] > 41 33 43 42 22 7D 2C 7B 22 70 72 6F 64 75 63 74 | A***"},{"product [LK-030A] > 4B 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 31 | Key":"a13FN***** [LK-030A] > 61 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 3A | *","deviceName": [LK-030A] > 22 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 | "LightSwitch_Sub [LK-030A] > 44 65 76 5F 30 34 22 2C 22 63 6C 69 65 6E 74 49 | Dev_04","clientI [LK-030A] > 64 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 2E | d":"a13FN******. [LK-030A] > 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 | LightSwitch_SubD [LK-030A] > 65 76 5F 30 34 22 2C 22 74 69 6D 65 73 74 61 6D | ev_04","timestam [LK-030A] > 70 22 3A 22 31 36 32 35 34 36 36 34 39 39 33 39 | p":"162546649939 [LK-030A] > 36 22 2C 22 73 69 67 6E 6D 65 74 68 6F 64 22 3A | 6","signmethod": [LK-030A] > 22 68 6D 61 63 53 68 61 32 35 36 22 2C 22 73 69 | "hmacSha256","si [LK-030A] > 67 6E 22 3A 22 43 41 36 46 35 37 38 34 45 37 45 | gn":"CA6F5784E7E [LK-030A] > 45 31 32 32 46 33 35 45 37 41 36 44 36 43 30 31 | E122F35E7A6D6C01 [LK-030A] > 46 42 35 37 42 30 42 32 44 41 43 39 46 45 38 41 | FB57B0B2DAC9FE8A [LK-030A] > 31 44 35 41 44 36 46 38 34 46 32 35 46 39 45 38 | 1D5AD6F84F25F9E* [LK-030A] > 30 31 34 38 45 22 7D 5D 7D | *****"}]} - The following log data indicates that IoT Platform sends a response message to the gateway by using the
/sys/a18wP******/LightSwitchGW/thing/topo/add_replytopic:[1625466499.500][LK-0309] pub: /sys/a18wP******/LightSwitchGW/thing/topo/add_reply [LK-030A] < 7B 22 63 6F 64 65 22 3A 32 30 30 2C 22 64 61 74 | {"code":200,"dat [LK-030A] < 61 22 3A 5B 7B 22 70 72 6F 64 75 63 74 4B 65 79 | a":[{"productKey [LK-030A] < 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 22 2C | ":"a13FN******", [LK-030A] < 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 4C 69 | "deviceName":"Li [LK-030A] < 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 76 | ghtSwitch_SubDev [LK-030A] < 5F 30 34 22 7D 2C 7B 22 70 72 6F 64 75 63 74 4B | _04"},{"productK [LK-030A] < 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 | ey":"a13FN****** [LK-030A] < 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 | ","deviceName":" [LK-030A] < 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 | LightSwitch_SubD [LK-030A] < 65 76 5F 30 33 22 7D 2C 7B 22 70 72 6F 64 75 63 | ev_03"},{"produc [LK-030A] < 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 | tKey":"a13FN**** [LK-030A] < 31 61 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 | **","deviceName" [LK-030A] < 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 | :"LightSwitch_Su [LK-030A] < 62 44 65 76 5F 30 32 22 7D 2C 7B 22 70 72 6F 64 | bDev_02"},{"prod [LK-030A] < 75 63 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 | uctKey":"a13FN** [LK-030A] < 54 74 31 61 22 2C 22 64 65 76 69 63 65 4E 61 6D | ****","deviceNam [LK-030A] < 65 22 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F | e":"LightSwitch_ [LK-030A] < 53 75 62 44 65 76 5F 30 31 22 7D 5D 2C 22 69 64 | SubDev_01"}],"id [LK-030A] < 22 3A 22 31 22 2C 22 6D 65 73 73 61 67 65 22 3A | ":"1","message": [LK-030A] < 22 73 75 63 63 65 73 73 22 2C 22 6D 65 74 68 6F | "success","metho [LK-030A] < 64 22 3A 22 74 68 69 6E 67 2E 74 6F 70 6F 2E 61 | d":"thing.topo.a [LK-030A] < 64 64 22 2C 22 76 65 72 73 69 6F 6E 22 3A 22 31 | dd","version":"1 [LK-030A] < 2E 30 22 7D | .0"} msgid : 1 code : 200 product key : a18wP****** device name : LightSwitchGW message : success data : [{"productKey":"a13FN******","deviceName":"LightSwitch_SubDev_04"},{"productKey":"a13FN******","deviceName":"LightSwitch_SubDev_03"},{"productKey":"a13FN******","deviceName":"LightSwitch_SubDev_02"},{"productKey":"a13FN******","deviceName":"LightSwitch_SubDev_01"}] - The following log data indicates that IoT Platform sends a notification about the topological relationship change to the gateway by using the
/sys/a18wP******/LightSwitchGW/thing/topo/changetopic:[1625466499.533][LK-0309] pub: /sys/a18wP******/LightSwitchGW/thing/topo/change [LK-030A] < 7B 22 6D 65 74 68 6F 64 22 3A 22 74 68 69 6E 67 | {"method":"thing [LK-030A] < 2E 74 6F 70 6F 2E 63 68 61 6E 67 65 22 2C 22 69 | .topo.change","i [LK-030A] < 64 22 3A 22 31 33 31 32 34 35 35 31 37 30 22 2C | d":"1312455170", [LK-030A] < 22 70 61 72 61 6D 73 22 3A 7B 22 73 75 62 4C 69 | "params":{"subLi [LK-030A] < 73 74 22 3A 5B 7B 22 64 65 76 69 63 65 4E 61 6D | st":[{"deviceNam [LK-030A] < 65 22 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F | e":"LightSwitch_ [LK-030A] < 53 75 62 44 65 76 5F 30 31 22 2C 22 70 72 6F 64 | SubDev_01","prod [LK-030A] < 75 63 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 | uctKey":"a13FN** [LK-030A] < 54 74 31 61 22 7D 2C 7B 22 64 65 76 69 63 65 4E | ****"},{"deviceN [LK-030A] < 61 6D 65 22 3A 22 4C 69 67 68 74 53 77 69 74 63 | ame":"LightSwitc [LK-030A] < 68 5F 53 75 62 44 65 76 5F 30 32 22 2C 22 70 72 | h_SubDev_02","pr [LK-030A] < 6F 64 75 63 74 4B 65 79 22 3A 22 67 37 68 30 69 | oductKey":"a13FN [LK-030A] < 75 38 54 74 31 61 22 7D 2C 7B 22 64 65 76 69 63 | ******"},{"devic [LK-030A] < 65 4E 61 6D 65 22 3A 22 4C 69 67 68 74 53 77 69 | eName":"LightSwi [LK-030A] < 74 63 68 5F 53 75 62 44 65 76 5F 30 33 22 2C 22 | tch_SubDev_03"," [LK-030A] < 70 72 6F 64 75 63 74 4B 65 79 22 3A 22 67 37 68 | productKey":"a13 [LK-030A] < 30 69 75 38 54 74 31 61 22 7D 2C 7B 22 64 65 76 | FN******"},{"dev [LK-030A] < 69 63 65 4E 61 6D 65 22 3A 22 4C 69 67 68 74 53 | iceName":"LightS [LK-030A] < 77 69 74 63 68 5F 53 75 62 44 65 76 5F 30 34 22 | witch_SubDev_04" [LK-030A] < 2C 22 70 72 6F 64 75 63 74 4B 65 79 22 3A 22 67 | ,"productKey":"a [LK-030A] < 37 68 30 69 75 38 54 74 31 61 22 7D 5D 2C 22 73 | 13FN******"}],"s [LK-030A] < 74 61 74 75 73 22 3A 30 7D 2C 22 76 65 72 73 69 | tatus":0},"versi [LK-030A] < 6F 6E 22 3A 22 31 2E 30 2E 30 22 7D | on":"1.0.0"} msgid : 1312455170 product key : a18wP****** device name : LightSwitchGW params : {"subList":[{"deviceName":"LightSwitch_SubDev_01","productKey":"a13FN******"},{"deviceName":"LightSwitch_SubDev_02","productKey":"a13FN******"},{"deviceName":"LightSwitch_SubDev_03","productKey":"a13FN******"},{"deviceName":"LightSwitch_SubDev_04","productKey":"a13FN******"}],"status":0} - The following log data indicates that the gateway sends a request to connect the sub-device to IoT Platform.
[1625466501.399][LK-0309] pub: /ext/session/a18wP******/LightSwitchGW/combine/batch_login [LK-030A] > 7B 22 69 64 22 3A 22 32 22 2C 22 76 65 72 73 69 | {"id":"2","versi [LK-030A] > 6F 6E 22 3A 22 31 2E 30 22 2C 22 70 61 72 61 6D | on":"1.0","param [LK-030A] > 73 22 3A 7B 22 73 69 67 6E 4D 65 74 68 6F 64 22 | s":{"signMethod" [LK-030A] > 3A 22 68 6D 61 63 53 68 61 32 35 36 22 2C 22 64 | :"hmacSha256","d [LK-030A] > 65 76 69 63 65 4C 69 73 74 22 3A 5B 7B 22 70 72 | eviceList":[{"pr [LK-030A] > 6F 64 75 63 74 4B 65 79 22 3A 22 67 37 68 30 69 | oductKey":"a13FN [LK-030A] > 75 38 54 74 31 61 22 2C 22 64 65 76 69 63 65 4E | ******","deviceN [LK-030A] > 61 6D 65 22 3A 22 4C 69 67 68 74 53 77 69 74 63 | ame":"LightSwitc [LK-030A] > 68 5F 53 75 62 44 65 76 5F 30 31 22 2C 22 63 6C | h_SubDev_01","cl [LK-030A] > 69 65 6E 74 49 64 22 3A 22 67 37 68 30 69 75 38 | ientId":"a13FN** [LK-030A] > 54 74 31 61 2E 4C 69 67 68 74 53 77 69 74 63 68 | ****.LightSwitch [LK-030A] > 5F 53 75 62 44 65 76 5F 30 31 22 2C 22 74 69 6D | _SubDev_01","tim [LK-030A] > 65 73 74 61 6D 70 22 3A 22 31 36 32 35 34 36 36 | estamp":"1625466 [LK-030A] > 35 30 31 33 39 36 22 2C 22 63 6C 65 61 6E 53 65 | 501396","cleanSe [LK-030A] > 73 73 69 6F 6E 22 3A 22 66 61 6C 73 65 22 2C 22 | ssion":"false"," [LK-030A] > 73 69 67 6E 22 3A 22 30 46 41 45 38 43 33 43 33 | sign":"0FAE8C3C3 [LK-030A] > 34 38 44 35 30 37 38 38 43 41 42 38 38 42 36 44 | 48D50788CAB88B6D [LK-030A] > 39 44 34 34 43 35 44 35 36 46 45 46 44 42 33 45 | 9D44C5D56FEFDB3E [LK-030A] > 43 46 41 30 30 35 38 37 32 30 41 43 34 45 37 43 | CFA0058720AC4E7C [LK-030A] > 46 36 44 36 34 44 36 22 7D 2C 7B 22 70 72 6F 64 | F******"},{"prod [LK-030A] > 75 63 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 | uctKey":"a13FN** [LK-030A] > 54 74 31 61 22 2C 22 64 65 76 69 63 65 4E 61 6D | ****","deviceNam [LK-030A] > 65 22 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F | e":"LightSwitch_ [LK-030A] > 53 75 62 44 65 76 5F 30 32 22 2C 22 63 6C 69 65 | SubDev_02","clie [LK-030A] > 6E 74 49 64 22 3A 22 67 37 68 30 69 75 38 54 74 | ntId":"a13FN**** [LK-030A] > 31 61 2E 4C 69 67 68 74 53 77 69 74 63 68 5F 53 | **.LightSwitch_S [LK-030A] > 75 62 44 65 76 5F 30 32 22 2C 22 74 69 6D 65 73 | ubDev_02","times [LK-030A] > 74 61 6D 70 22 3A 22 31 36 32 35 34 36 36 35 30 | tamp":"162546650 [LK-030A] > 31 33 39 36 22 2C 22 63 6C 65 61 6E 53 65 73 73 | 1396","cleanSess [LK-030A] > 69 6F 6E 22 3A 22 66 61 6C 73 65 22 2C 22 73 69 | ion":"false","si [LK-030A] > 67 6E 22 3A 22 33 31 36 45 45 36 35 37 33 46 31 | gn":"316EE6573F1 [LK-030A] > 35 37 33 38 36 32 41 34 42 37 35 39 45 32 35 42 | 573862A4B759E25B [LK-030A] > 43 32 34 41 32 30 33 44 35 30 31 43 41 30 42 35 | C24A203D501CA0B5 [LK-030A] > 31 44 30 35 30 30 41 32 32 45 34 39 46 42 38 38 | 1D0500A22E49FB88 [LK-030A] > 39 46 32 42 35 22 7D 2C 7B 22 70 72 6F 64 75 63 | *****"},{"produc [LK-030A] > 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 | tKey":"g7h0i**** [LK-030A] > 31 61 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 | **","deviceName" [LK-030A] > 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 | :"LightSwitch_Su [LK-030A] > 62 44 65 76 5F 30 33 22 2C 22 63 6C 69 65 6E 74 | bDev_03","client [LK-030A] > 49 64 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 | Id":"a13FN****** [LK-030A] > 2E 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 | .LightSwitch_Sub [LK-030A] > 44 65 76 5F 30 33 22 2C 22 74 69 6D 65 73 74 61 | Dev_03","timesta [LK-030A] > 6D 70 22 3A 22 31 36 32 35 34 36 36 35 30 31 33 | mp":"16254665013 [LK-030A] > 39 36 22 2C 22 63 6C 65 61 6E 53 65 73 73 69 6F | 96","cleanSessio [LK-030A] > 6E 22 3A 22 66 61 6C 73 65 22 2C 22 73 69 67 6E | n":"false","sign [LK-030A] > 22 3A 22 37 31 30 43 44 43 37 31 36 34 34 35 36 | ":"710CDC7164456 [LK-030A] > 43 39 43 45 41 36 44 39 43 33 30 41 35 44 38 30 | C9CEA6D9C30A5D80 [LK-030A] > 32 33 42 41 32 46 46 45 42 30 32 41 33 46 36 37 | 23BA2FFEB02A3F67 [LK-030A] > 35 41 37 41 34 39 32 34 33 45 33 33 41 32 31 45 | 5A7A49243E33A21E [LK-030A] > 36 36 44 22 7D 2C 7B 22 70 72 6F 64 75 63 74 4B | ***"},{"productK [LK-030A] > 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 | ey":"a13FN****** [LK-030A] > 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 | ","deviceName":" [LK-030A] > 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 | LightSwitch_SubD [LK-030A] > 65 76 5F 30 34 22 2C 22 63 6C 69 65 6E 74 49 64 | ev_04","clientId [LK-030A] > 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 2E 4C | ":"a13FN******.L [LK-030A] > 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 | ightSwitch_SubDe [LK-030A] > 76 5F 30 34 22 2C 22 74 69 6D 65 73 74 61 6D 70 | v_04","timestamp [LK-030A] > 22 3A 22 31 36 32 35 34 36 36 35 30 31 33 39 36 | ":"1625466501396 [LK-030A] > 22 2C 22 63 6C 65 61 6E 53 65 73 73 69 6F 6E 22 | ","cleanSession" [LK-030A] > 3A 22 66 61 6C 73 65 22 2C 22 73 69 67 6E 22 3A | :"false","sign": [LK-030A] > 22 38 42 35 39 39 34 44 32 39 37 32 45 43 37 46 | "8B5994D2972EC7F [LK-030A] > 42 36 46 42 31 39 39 32 30 39 36 39 43 39 37 31 | B6FB19920969C971 [LK-030A] > 31 44 38 34 45 36 45 42 32 42 36 37 46 41 39 35 | 1D84E6EB2B67FA95 [LK-030A] > 31 43 33 42 34 35 31 41 38 31 39 41 30 44 32 44 | 1C3B451A819***** [LK-030A] > 45 22 7D 5D 7D 7D | *"}]}}
- The following log data indicates that the connected gateway sends a request to IoT Platform to add a topological relationship by using the
- The following log data indicates that IoT Platform sends a response message to the gateway after the sub-device is connected to IoT Platform.
[1625466501.500][LK-0309] pub: /ext/session/a18wP******/LightSwitchGW/combine/batch_login_reply [LK-030A] < 7B 22 63 6F 64 65 22 3A 32 30 30 2C 22 64 61 74 | {"code":200,"dat [LK-030A] < 61 22 3A 5B 7B 22 70 72 6F 64 75 63 74 4B 65 79 | a":[{"productKey [LK-030A] < 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 22 2C | ":"a13FN******", [LK-030A] < 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 4C 69 | "deviceName":"Li [LK-030A] < 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 65 76 | ghtSwitch_SubDev [LK-030A] < 5F 30 31 22 7D 2C 7B 22 70 72 6F 64 75 63 74 4B | _01"},{"productK [LK-030A] < 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 31 61 | ey":"a13FN****** [LK-030A] < 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 3A 22 | ","deviceName":" [LK-030A] < 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 62 44 | LightSwitch_SubD [LK-030A] < 65 76 5F 30 32 22 7D 2C 7B 22 70 72 6F 64 75 63 | ev_02"},{"produc [LK-030A] < 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 54 74 | tKey":"a13FN**** [LK-030A] < 31 61 22 2C 22 64 65 76 69 63 65 4E 61 6D 65 22 | 1a","deviceName" [LK-030A] < 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F 53 75 | :"LightSwitch_Su [LK-030A] < 62 44 65 76 5F 30 33 22 7D 2C 7B 22 70 72 6F 64 | bDev_03"},{"prod [LK-030A] < 75 63 74 4B 65 79 22 3A 22 67 37 68 30 69 75 38 | uctKey":"a13FN** [LK-030A] < 54 74 31 61 22 2C 22 64 65 76 69 63 65 4E 61 6D | ****","deviceNam [LK-030A] < 65 22 3A 22 4C 69 67 68 74 53 77 69 74 63 68 5F | e":"LightSwitch_ [LK-030A] < 53 75 62 44 65 76 5F 30 34 22 7D 5D 2C 22 69 64 | SubDev_04"}],"id [LK-030A] < 22 3A 22 32 22 2C 22 6D 65 73 73 61 67 65 22 3A | ":"2","message": [LK-030A] < 22 73 75 63 63 65 73 73 22 7D | "success"} msgid : 2 code : 200 product key : a18wP****** device name : LightSwitchGW message : success data : [{"productKey":"a13FN******","deviceName":"LightSwitch_SubDev_01"},{"productKey":"a13FN******","deviceName":"LightSwitch_SubDev_02"},{"productKey":"a13FN******","deviceName":"LightSwitch_SubDev_03"},{"productKey":"a13FN******","deviceName":"LightSwitch_SubDev_04"}] - Optional:If you run the sample code to allow a sub-device to subscribe to a topic, the corresponding log data is generated. The following log data indicates that the sub-device subscribes to the
/a13FN******/LightSwitch_SubDev_01/user/gettopic:[1625470230.077][LK-0309] sub: /a13FN******/LightSwitch_SubDev_01/user/getAfter you successfully subscribe to a topic, you can log in to the IoT Platform console. On the Device Details page, go to the Topic List tab, click Publish Message in the Actions column of the subscribed topic, and then in the Publish Message dialog box, enter a message (such as This is a test message from Alibaba Iot Platform.) in the message input box to simulate sending a message from the IoT Platform to the device. and send the message from IoT Platform to the sub-device.
After the gateway receives the message, the following log data is printed.Important You must specify the logic to send the message that is received by the gateway to the sub-device.[1625472952.433][LK-0309] pub: /a13FN******/LightSwitch_SubDev_01/user/get [LK-030A] < 54 68 69 73 20 69 73 20 61 20 74 65 73 74 20 6D | This is a test m [LK-030A] < 65 73 73 61 67 65 20 66 72 6F 6D 20 41 6C 69 62 | essage from Alib [LK-030A] < 61 62 61 20 49 6F 74 20 50 6C 61 74 66 6F 72 6D | aba Iot Platform [LK-030A] < 2E | . pub, qos: 0, topic: /a13FN******/LightSwitch_SubDev_01/user/get pub, payload: This is a test message from Alibaba Iot Platform. - The following log data is generated when the gateway submits messages of multiple sub-devices.
[1629707578.833][LK-0309] pub[4]: /sys/a18Wp******/LightSwitchGW/proxy/batch_post [LK-030A] > 7B 22 69 64 22 3A 22 33 22 2C 22 76 65 72 73 69 | {"id":"3","versi [LK-030A] > 6F 6E 22 3A 22 31 2E 30 22 2C 22 70 61 72 61 6D | on":"1.0","param [LK-030A] > 73 22 3A 5B 7B 22 74 6F 70 69 63 22 3A 22 2F 73 | s":[{"topic":"/s [LK-030A] > 79 73 2F 61 31 58 48 53 67 64 4B 42 37 4F 2F 73 | ys/a13FN******/s [LK-030A] > 75 62 5F 64 65 76 69 63 65 5F 74 65 73 74 5F 30 | ub_device_test_0 [LK-030A] > 30 30 31 2F 74 68 69 6E 67 2F 65 76 65 6E 74 2F | 001/thing/event/ [LK-030A] > 70 72 6F 70 65 72 74 79 2F 70 6F 73 74 22 2C 22 | property/post"," [LK-030A] > 70 61 79 6C 6F 61 64 22 3A 22 65 79 4A 70 5A 43 | payload":"eyJpZC [LK-030A] > 49 36 49 6A 45 69 4C 43 4A 32 5A 58 4A 7A 61 57 | I6IjEiLCJ2ZXJzaW [LK-030A] > 39 75 49 6A 6F 69 4D 53 34 77 49 69 77 69 63 47 | 9uIjoiMS4wIiwicG [LK-030A] > 46 79 59 57 31 7A 49 6A 70 37 49 6E 42 49 49 6A | FyYW1zIjp7InBIIj [LK-030A] > 6F 31 66 58 30 41 22 7D 2C 7B 22 74 6F 70 69 63 | o1fX0A"},{"topic [LK-030A] > 22 3A 22 2F 73 79 73 2F 61 31 58 48 53 67 64 4B | ":"/sys/a13FNgdK [LK-030A] > 42 37 4F 2F 73 75 62 5F 64 65 76 69 63 65 5F 74 | B7O/sub_device_t [LK-030A] > 65 73 74 5F 30 30 30 32 2F 74 68 69 6E 67 2F 65 | est_0002/thing/e [LK-030A] > 76 65 6E 74 2F 70 72 6F 70 65 72 74 79 2F 70 6F | vent/property/po [LK-030A] > 73 74 22 2C 22 70 61 79 6C 6F 61 64 22 3A 22 65 | st","payload":"e [LK-030A] > 79 4A 70 5A 43 49 36 49 6A 45 69 4C 43 4A 32 5A | yJpZCI6IjEiLCJ2Z [LK-030A] > 58 4A 7A 61 57 39 75 49 6A 6F 69 4D 53 34 77 49 | XJzaW9uIjoiMS4wI [LK-030A] > 69 77 69 63 47 46 79 59 57 31 7A 49 6A 70 37 49 | iwicGFyYW1zIjp7I [LK-030A] > 6E 42 49 49 6A 6F 31 66 58 30 41 22 7D 2C 7B 22 | nBIIjo1fX0A"},{" [LK-030A] > 74 6F 70 69 63 22 3A 22 2F 73 79 73 2F 61 31 58 | topic":"/sys/a1X [LK-030A] > 48 53 67 64 4B 42 37 4F 2F 73 75 62 5F 64 65 76 | HS******/sub_dev [LK-030A] > 69 63 65 5F 74 65 73 74 5F 30 30 30 33 2F 74 68 | ice_test_0003/th [LK-030A] > 69 6E 67 2F 65 76 65 6E 74 2F 70 72 6F 70 65 72 | ing/event/proper [LK-030A] > 74 79 2F 70 6F 73 74 22 2C 22 70 61 79 6C 6F 61 | ty/post","payload" [LK-030A] > 64 22 3A 22 65 79 4A 70 5A 43 49 36 49 6A 45 69 | :"eyJpZCI6IjEi [LK-030A] > 4C 43 4A 32 5A 58 4A 7A 61 57 39 75 49 6A 6F 69 | LCJ2ZXJzaW9uIjoi [LK-030A] > 4D 53 34 77 49 69 77 69 63 47 46 79 59 57 31 7A | MS4wIiwicGFyYW1z [LK-030A] > 49 6A 70 37 49 6E 42 49 49 6A 6F 31 66 58 30 41 | Ijp7InBIIjo1fX0A [LK-030A] > 22 7D 2C 7B 22 74 6F 70 69 63 22 3A 22 2F 73 79 | "},{"topic":"/sy [LK-030A] > 73 2F 61 31 58 48 53 67 64 4B 42 37 4F 2F 73 75 | s/a13FN******/su [LK-030A] > 62 5F 64 65 76 69 63 65 5F 74 65 73 74 5F 30 30 | b_device_test_00 [LK-030A] > 30 34 2F 74 68 69 6E 67 2F 65 76 65 6E 74 2F 70 | 04/thing/event/p [LK-030A] > 72 6F 70 65 72 74 79 2F 70 6F 73 74 22 2C 22 70 | roperty/post","p [LK-030A] > 61 79 6C 6F 61 64 22 3A 22 65 79 4A 70 5A 43 49 | ayload":"eyJpZCI [LK-030A] > 36 49 6A 45 69 4C 43 4A 32 5A 58 4A 7A 61 57 39 | 6IjEiLCJ2ZXJzaW9 [LK-030A] > 75 49 6A 6F 69 4D 53 34 77 49 69 77 69 63 47 46 | uIjoiMS4wIiwicGF [LK-030A] > 79 59 57 31 7A 49 6A 70 37 49 6E 42 49 49 6A 6F | yYW1zIjp7InBIIjo [LK-030A] > 31 66 58 30 41 22 7D 2C 7B 22 74 6F 70 69 63 22 | 1fX0A"},{"topic" [LK-030A] > 3A 22 2F 73 79 73 2F 61 31 58 48 53 67 64 4B 42 | :"/sys/a13FNgdKB [LK-030A] > 37 4F 2F 73 75 62 5F 64 65 76 69 63 65 5F 74 65 | 7O/sub_device_te [LK-030A] > 73 74 5F 30 30 30 31 2F 74 68 69 6E 67 2F 65 76 | st_0001/thing/ev [LK-030A] > 65 6E 74 2F 70 72 6F 70 65 72 74 79 2F 70 6F 73 | ent/property/pos [LK-030A] > 74 22 2C 22 70 61 79 6C 6F 61 64 22 3A 22 65 79 | t","payload":"ey [LK-030A] > 4A 70 5A 43 49 36 49 6A 45 69 4C 43 4A 32 5A 58 | JpZCI6IjEiLCJ2ZX [LK-030A] > 4A 7A 61 57 39 75 49 6A 6F 69 4D 53 34 77 49 69 | JzaW9uIjoiMS4wIi [LK-030A] > 77 69 63 47 46 79 59 57 31 7A 49 6A 70 37 49 6E | wicGFyYW1zIjp7In [LK-030A] > 42 49 49 6A 6F 31 66 58 30 41 22 7D 2C 7B 22 74 | BIIjo1fX0A"},{"t [LK-030A] > 6F 70 69 63 22 3A 22 2F 73 79 73 2F 61 31 58 48 | opic":"/sys/a1XH [LK-030A] > 53 67 64 4B 42 37 4F 2F 73 75 62 5F 64 65 76 69 | S******/sub_devi [LK-030A] > 63 65 5F 74 65 73 74 5F 30 30 30 32 2F 74 68 69 | ce_test_0002/thi [LK-030A] > 6E 67 2F 65 76 65 6E 74 2F 70 72 6F 70 65 72 74 | ng/event/propert [LK-030A] > 79 2F 70 6F 73 74 22 2C 22 70 61 79 6C 6F 61 64 | y/post","payload [LK-030A] > 22 3A 22 65 79 4A 70 5A 43 49 36 49 6A 45 69 4C | ":"eyJpZCI6IjEiL [LK-030A] > 43 4A 32 5A 58 4A 7A 61 57 39 75 49 6A 6F 69 4D | CJ2ZXJzaW9uIjoiM [LK-030A] > 53 34 77 49 69 77 69 63 47 46 79 59 57 31 7A 49 | S4wIiwicGFyYW1zI [LK-030A] > 6A 70 37 49 6E 42 49 49 6A 6F 31 66 58 30 41 22 | jp7InBIIjo1fX0A" [LK-030A] > 7D 2C 7B 22 74 6F 70 69 63 22 3A 22 2F 73 79 73 | },{"topic":"/sys [LK-030A] > 2F 61 31 58 48 53 67 64 4B 42 37 4F 2F 73 75 62 | /a13FN******/sub [LK-030A] > 5F 64 65 76 69 63 65 5F 74 65 73 74 5F 30 30 30 | _device_test_000 [LK-030A] > 33 2F 74 68 69 6E 67 2F 65 76 65 6E 74 2F 70 72 | 3/thing/event/pr [LK-030A] > 6F 70 65 72 74 79 2F 70 6F 73 74 22 2C 22 70 61 | operty/post","pa [LK-030A] > 79 6C 6F 61 64 22 3A 22 65 79 4A 70 5A 43 49 36 | yload":"eyJpZCI6 [LK-030A] > 49 6A 45 69 4C 43 4A 32 5A 58 4A 7A 61 57 39 75 | IjEiLCJ2ZXJzaW9u [LK-030A] > 49 6A 6F 69 4D 53 34 77 49 69 77 69 63 47 46 79 | IjoiMS4wIiwicGFy [LK-030A] > 59 57 31 7A 49 6A 70 37 49 6E 42 49 49 6A 6F 31 | YW1zIjp7InBIIjo1 [LK-030A] > 66 58 30 41 22 7D 5D 7D | fX0A"}]} [1629707578.955][LK-0309] pub: /sys/a18Wp******/LightSwitchGW/proxy/batch_post_reply [LK-030A] < 7B 22 63 6F 64 65 22 3A 32 30 30 2C 22 64 61 74 | {"code":200,"dat [LK-030A] < 61 22 3A 5B 7B 22 63 6F 64 65 22 3A 32 30 30 2C | a":[{"code":200, [LK-030A] < 22 74 6F 70 69 63 22 3A 22 2F 73 79 73 2F 61 31 | "topic":"/sys/a1 [LK-030A] < 58 48 53 67 64 4B 42 37 4F 2F 73 75 62 5F 64 65 | XHS******/sub_de [LK-030A] < 76 69 63 65 5F 74 65 73 74 5F 30 30 30 31 2F 74 | vice_test_0001/t [LK-030A] < 68 69 6E 67 2F 65 76 65 6E 74 2F 70 72 6F 70 65 | hing/event/prope [LK-030A] < 72 74 79 2F 70 6F 73 74 22 7D 2C 7B 22 63 6F 64 | rty/post"},{"cod [LK-030A] < 65 22 3A 32 30 30 2C 22 74 6F 70 69 63 22 3A 22 | e":200,"topic":" [LK-030A] < 2F 73 79 73 2F 61 31 58 48 53 67 64 4B 42 37 4F | /sys/a13FN****** [LK-030A] < 2F 73 75 62 5F 64 65 76 69 63 65 5F 74 65 73 74 | /sub_device_test [LK-030A] < 5F 30 30 30 32 2F 74 68 69 6E 67 2F 65 76 65 6E | _0002/thing/even [LK-030A] < 74 2F 70 72 6F 70 65 72 74 79 2F 70 6F 73 74 22 | t/property/post" [LK-030A] < 7D 2C 7B 22 63 6F 64 65 22 3A 32 30 30 2C 22 74 | },{"code":200,"t [LK-030A] < 6F 70 69 63 22 3A 22 2F 73 79 73 2F 61 31 58 48 | opic":"/sys/a1XH [LK-030A] < 53 67 64 4B 42 37 4F 2F 73 75 62 5F 64 65 76 69 | S******/sub_devi [LK-030A] < 63 65 5F 74 65 73 74 5F 30 30 30 33 2F 74 68 69 | ce_test_0003/thi [LK-030A] < 6E 67 2F 65 76 65 6E 74 2F 70 72 6F 70 65 72 74 | ng/event/propert [LK-030A] < 79 2F 70 6F 73 74 22 7D 2C 7B 22 63 6F 64 65 22 | y/post"},{"code" [LK-030A] < 3A 32 30 30 2C 22 74 6F 70 69 63 22 3A 22 2F 73 | :200,"topic":"/s [LK-030A] < 79 73 2F 61 31 58 48 53 67 64 4B 42 37 4F 2F 73 | ys/a13FN******/s [LK-030A] < 75 62 5F 64 65 76 69 63 65 5F 74 65 73 74 5F 30 | ub_device_test_0 [LK-030A] < 30 30 34 2F 74 68 69 6E 67 2F 65 76 65 6E 74 2F | 004/thing/event/ [LK-030A] < 70 72 6F 70 65 72 74 79 2F 70 6F 73 74 22 7D 2C | property/post"}, [LK-030A] < 7B 22 63 6F 64 65 22 3A 32 30 30 2C 22 74 6F 70 | {"code":200,"top [LK-030A] < 69 63 22 3A 22 2F 73 79 73 2F 61 31 58 48 53 67 | ic":"/sys/a13FNg [LK-030A] < 64 4B 42 37 4F 2F 73 75 62 5F 64 65 76 69 63 65 | dKB7O/sub_device [LK-030A] < 5F 74 65 73 74 5F 30 30 30 31 2F 74 68 69 6E 67 | _test_0001/thing [LK-030A] < 2F 65 76 65 6E 74 2F 70 72 6F 70 65 72 74 79 2F | /event/property/ [LK-030A] < 70 6F 73 74 22 7D 2C 7B 22 63 6F 64 65 22 3A 32 | post"},{"code":2 [LK-030A] < 30 30 2C 22 74 6F 70 69 63 22 3A 22 2F 73 79 73 | 00,"topic":"/sys [LK-030A] < 2F 61 31 58 48 53 67 64 4B 42 37 4F 2F 73 75 62 | /a13FN******/sub [LK-030A] < 5F 64 65 76 69 63 65 5F 74 65 73 74 5F 30 30 30 | _device_test_000 [LK-030A] < 32 2F 74 68 69 6E 67 2F 65 76 65 6E 74 2F 70 72 | 2/thing/event/pr [LK-030A] < 6F 70 65 72 74 79 2F 70 6F 73 74 22 7D 2C 7B 22 | operty/post"},{" [LK-030A] < 63 6F 64 65 22 3A 32 30 30 2C 22 74 6F 70 69 63 | code":200,"topic [LK-030A] < 22 3A 22 2F 73 79 73 2F 61 31 58 48 53 67 64 4B | ":"/sys/a13FNgdK [LK-030A] < 42 37 4F 2F 73 75 62 5F 64 65 76 69 63 65 5F 74 | B7O/sub_device_t [LK-030A] < 65 73 74 5F 30 30 30 33 2F 74 68 69 6E 67 2F 65 | est_0003/thing/e [LK-030A] < 76 65 6E 74 2F 70 72 6F 70 65 72 74 79 2F 70 6F | vent/property/po [LK-030A] < 73 74 22 7D 5D 7D | st"}]} - Optional: If you run the sample code to allow a sub-device to send a message, the corresponding log data is generated. The following log data indicates that the sub-device sends a message to IoT Platform by using the
/a13FN******/LightSwitch_SubDev_01/user/updatetopic:[1625470230.077][LK-0309] pub: /a13FN******/LightSwitch_SubDev_01/user/update [LK-030A] > 7B 22 69 64 22 3A 22 31 22 2C 22 76 65 72 73 69 | {"id":"1","versi [LK-030A] > 6F 6E 22 3A 22 31 2E 30 22 2C 22 70 61 72 61 6D | on":"1.0","param [LK-030A] > 73 22 3A 7B 22 4C 69 67 68 74 53 77 69 74 63 68 | s":{"LightSwitch [LK-030A] > 22 3A 30 7D 7D | ":0}}
IoT Platform logs
View the device status and logs in the IoT Platform console.
- In the left-side navigation pane, choose . Then, find the gateway and sub-device and view the status. If the value in the State/Enabled column is Online, the device is connected to IoT Platform.
-
In the left navigation bar, select , select a product, and then view the logs for device connections, topic subscriptions, and published messages.
- Select the product to which the gateway belongs and view logs. The logs show how the topological relationship between the gateway and sub-device is established.
To view the details of each log entry, click View.
- Select the product to which the sub-device belongs and view logs. The logs show that the LightSwitch_SubDev_01 sub-device connects to IoT Platform, subscribes to a topic, and receives a message.
- Select the product to which the gateway belongs and view logs. The logs show how the topological relationship between the gateway and sub-device is established.
What to do next
For more information about error messages in logs, see aiot_subdev_api.h.