Updating Twin Properties of an End Device
Function
This API is used to update twin properties of an end device.
URI
PUT /v2/{project_id}/edgemgr/devices/{device_id}/twin
Parameter |
Mandatory |
Description |
---|---|---|
project_id |
Yes |
Project ID. For details about how to obtain a project ID, see Obtaining a Project ID. |
device_id |
Yes |
Device ID. |
Request
Request parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
Content-Type |
Yes |
String |
Message body type (format). The default value application/json is recommended. |
X-Auth-Token |
Yes |
String |
User token. The token can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token. |
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
twin |
No |
Object |
Dynamic properties of an end device. A maximum of 64 key-value pairs are supported. The key indicates the property name. For details about the format of value, see Table 7. The following is an example: "twin": { "devicestate": { "optional": true, "expected": { "value": "running" }, "metadata": { "type": "string" } } } |
property_visitors |
No |
Table 25 object |
Twin property configuration, which varies depending on access_protocol. |
Example request
{ "twin": { "devicestate": { "expected": { "value": "running" } } }, "property_visitors": {} }
Response
Parameter |
Type |
Description |
---|---|---|
twin |
Object |
Dynamic properties of an end device. A maximum of 64 key-value pairs are supported. The key indicates the property name. For details about the format of value, see Table 21. The following is an example: "devicestate":{ "expected":{ "value":"running", "metadata":{ "timestamp":1536822119463 } }, "optional":true, "metadata":{ "type":"string" } } |
property_visitors |
Table 25 object |
Twin property configuration, which varies depending on access_protocol. |
Example response
{ "twin": { "devicestate": { "expected": { "value": "running", "metadata": { "timestamp": 1523514289 } }, "actual": { "value": "stop", "metadata": { "timestamp": 1523514289 } }, "optional": true, "metadata": { "type": "string" } } }, "property_visitors": {} }
Error Codes
For details, see Error Codes.
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