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

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

Check device acc_psk

Request format: GET

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

Url parameter

Parameter Name	Format	Required?	Description
imei	string	Yes	URequest parameter in URL; its value is device IMEI.

Return Parameters

Name	Format	Description
errno	int	Call error code, where 0 means success.
error	string	Error description, where "succ" means success.
data	json	Device dependent message returned after the interface is successfully invoked; see Data Description Table

Data Description Table

Name	Format	Description
device_id	string	Unique ID assigned by the platform
psk	string	psk for the device to be connected with the access machine; return the field when NB protocol activates DTLS encryption function; this field does not exist in other cases.

Request Example

POST http://api.heclouds.com/devices HTTP/1.1
api-key: WhI*************v1c=
Content-Type: application/json

Return Example

{
    "errno": 0,
    "error": "succ",
    "data": {
        "psk":"23ddafd3444"
    }
}

< edit acc_psk

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