NB-IoT Suite Product Introduction
Profile Resource model Advantages Definitions
QuickStart
Products and Devices
Create Product Create Device
Device access process
User Guide
Rule Engine
Service Introduction Rule Configuration Basic Data Format SQL
Message queue Application Management
Service Introduction Controls Introduction Operating Instructions
Device Development Guide
Protocol introduction Object and attribute Development Guide Supported module list Obtaining SDK transplantation Document download
Application Development Guide
API Authentication API List Device management-related API
Add new device Obtain the resource list Update device information Query device details Query device information in batch Query device condition in batch Query device information according to IMEI Delete device
Query API at data point
Query device latest data in batch Check data point
Real-time command API
Real-time command-resource discovery Real-time command-resource observation Real-time command-read device resource Real-time command-write device resource Real-time command-command release
Cache command API
Cache command-read device resource Cache command-write device resource Cache command-command release Check the cache command list of specified device Check the details of specified cache command Cancel cache command
Trigger-related API
Add trigger Update trigger Check trigger Delete trigger
DTLS-related API
Check device bs_psk Update bs_psk Add acc_psk Edit acc_psk Check device acc_psk
API status code HTTP push
Service Introduction Service configuration Development Guide Push SDK
SDK download
Best Practices
Access based on module (5310) Access based on MCU
FAQ
Registration-related issue Protocol-related issue API-related issue OTA-related issue Application development issue Other issues
Service agreement
IMEI Complaint service agreement
Update Log

Real-time command-resource subscription

Request format: POST

URL: http(s)://api.heclouds.com/nbiot/observe

I only want to see examples！！！

Url parameter

Parameter NameFormatRequired?Description
imeistringYesIdentity code of nbiot device, required
cancelboolYestrue means cancel the subscription, false means subscription, required
obj_idintYesobject id of nbiot device, equivalent to the data flow id in the platform model, required
obj_inst_idintNoid of a specific instance under the device object, corresponding to a part of key value at the data point in the platform model, optional
res_idintNoResource id of nbiot device, optional
pminintNoThe minimum interval for data upload, 0 by default; in such a case, data will be uploaded if any.
pmaxintNoMaximum time interval for data upload
gtdoubleNoUploaded when the data value is bigger than this value
ltdoubleNoUploaded when the data value is smaller than this value
stdoubleNoWhen the difference between two data values is bigger than or equal to this value
timeoutintNoRequest time-out period, 25 by default (unit: s), value range [ 5,40]

Return Parameters

NameFormatDescription
errnointCall error code, where 0 means success.
error stringError description, where "succ" means success.
Description

1、Return to the meaning corresponding to errno status code; check API status code.。

  1. When both pmin and pmax exist, pmax >= pmin and both of them are bigger than 0;

  2. lt\<gt and lt+ 2*st\<gt;

  3. If there is gt, lt, st, res_id is required;

  4. If cancel is non true|false, it will be false by default.

Request Example

POST http://api.heclouds.com/nbiot/observe HTTP/1.1
api-key: WhI*************v1c=  //Must be MasterKey, because it involves personal privacy, use "*******" instead
Content-Type:application/json
Authorization: version=2018-10-31&res=products/23104&et=1554398783&method=sha1&sign=fsBwuj0udOpU3BLoHmpbFwyIo30=

Request parameter example

{
    "imei":xxxx, // The identity code of the nbiot device, consisting of 15 digits;
    "cancel":true|false, //true means unsubscribe, false means subscribe, required
    "obj_id":xxxx, // nbiot 设备的 object id , 对应到平台模型中为数据流 id， 必填
    "obj_inst_id": xxxx, //The object id of the nbiot device, which corresponds to the data stream id in the platform model, is required
    "res_id": 123, // Resource id of the nbiot device, optional
    "pmin":11, //The minimum time interval for uploading data is int type, the default is 0, then upload data when there is data
    "pmax":123,//Maximum time interval for uploading data, int type, optional
    "gt":12, //Upload when the data is greater than this value, double type, optional
    "lt":233, // Upload when the data is less than this value, double type, optional
    "st":12 //Upload when the difference between two data points is greater than or equal to this value, double type, optional
}

Return example

{
    "errno": 0,
    "error": "succ"
} //In the response message, errno represents the error code, and error represents the cause of the error.

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