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New device Register Device Update device Query device details Query device details in batch Query device statuses in batch Remove Device New data stream Update data stream Query data stream Query data stream in batch Delete data stream Query device history data Query device data in batch Upload Data Points Upload file Get file Query device history command New trigger Update trigger Query trigger Delete trigger Add apikey Update apikey Query apikey Delete apikey
FAQ
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Update of data stream properties

Request format: PUT

URL: http://api.onenet.hk.chinamobile.com/devices/device_id/datastreams/datastream_id

device_id: to be replaced with device ID
datastream_id: to be replaced with device data stream ID

http body parameter

Name Format Required or not Description
tags array- string No Data stream tag, one or more
unit string No Data unit
unit_symbol string No Data unit symbol
cmd string No Periodically issued command, hexadecimal byte string. Example: 010300000002c40b.
interval int No Sampling interval
formula string No Register calculation formula, separated by commas (,) Example: (A0+A1), A0*A1

Return parameter

Name Format Description
errno int Call error code, where 0 means success.
error string Error description. “succ” means the call is successful.

Example of request header

PUT http://api.onenet.hk.chinamobile.com/devices/20474930/datastreams/speed HTTP/1.1

Request parameter example

{
    "cmd": "010300000002c40b",
    "interval": 10
}

Return example

{
    "errno":0,
    "error":"succ"
}

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