У меня есть Ubibot ws-1, и я пытаюсь извлечь метку времени, температуру, влажность, свет и напряжение из last_values
в следующем JSON
Выход API JSON
{
"channel": {
"channel_id": "1111",
"name": "C-1111",
"field1": "Temperature",
"field2": "Humidity",
"field3": "Light",
"field4": "Voltage",
"field5": "WIFI RSSI",
"field6": "Vibration Index",
"field7": "Knocks",
"field8": "External Temperature Probe",
"field9": "Reed Sensor",
"field10": null,
"latitude": "1",
"longitude": "1",
"elevation": null,
"created_at": "2019-02-05T05:16:43Z",
"updated_at": "2019-02-05T06:11:38Z",
"metadata": "{\"fn_dp\":900,\"fn_th\":300,\"fn_light\":300,\"fn_acc_act\":0,\"thres_acc_min\":0,\"fn_acc_tap1\":0,\"fn_acc_tap2\":0,\"fn_ext_t\":300,\"fn_battery\":7200,\"fn_485_th\":0,\"fn_485_sth\":0,\"net_mode\":0,\"no_net_fn\":1,\"cg_data_led\":1,\"wifi_mode\":1}",
"tags": null,
"public_flag": "false",
"url": null,
"description": null,
"write_key": "1b0f2b31a6d522a376782a90f4be0270",
"user_id": "9186F150-9203-492B-B31A-77077E15E461",
"last_entry_id": "583",
"last_entry_date": "2019-02-05T19:12:47Z",
"usage": "96328",
"device_id": "17a867e84624895f6dab0346a4cba8cfd8279298",
"status": "{\"ssid\":\"hydra1\",\"status\":\"ssid=wifi,usb=1\",\"usb\":\"1\"}",
"status_date": "1549393967",
"last_ip": "nn.nn.nn.nnn",
"channel_icon": null,
"product_id": "ubibot-ws1",
"plan_code": "ubibot_free",
"plan_start": "2019-02-05T05:16:43Z",
"plan_end": null,
"bill_start": "2019-02-05T05:16:43Z",
"bill_end": "2019-03-07T05:16:43Z",
"traffic_out": "188763",
"traffic_in": "33767",
"full_dump": "0",
"renew": null,
"last_values": "{\"field1\":{\"value\":27.186996,\"created_at\":\"2019-02-05T19:12:39Z\"},\"field3\":{\"value\":10.37,\"created_at\":\"2019-02-05T19:12:39Z\"},\"field2\":{\"value\":29,\"created_at\":\"2019-02-05T19:12:39Z\"},\"field5\":{\"value\":-35,\"created_at\":\"2019-02-05T19:12:41Z\"},\"field4\":{\"value\":5,\"created_at\":\"2019-02-05T17:27:38Z\"}}",
}
}
мои навыки jq очень плохи .channel.last_values."\(.field1)
дает мне jq: error (at <stdin>:0): Cannot index string with string "null"
.
Может ли кто-нибудь помочь мне с правильным jq?Заранее спасибо