Querying a Device Shadow
Function
Querying a Device Shadow
URI
GET /v2/{project_id}/link/instances/{instance_id}/devices/{device_id}/shadow
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Project ID. The default value is default for compatibility with 20.0.Project ID. For details about how to get the project ID, see "Appendix" > "Obtaining a Project ID" in this document. |
instance_id |
Yes |
String |
Instance ID. The default value is default for compatibility with 20.0. |
device_id |
Yes |
Integer |
Device ID. |
Request Parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
X-Auth-Token |
Yes |
String |
User token, which can be obtained by calling the IAM API (value of X-Subject-Token in the response header). |
Response Parameters
Status code: 200
Parameter |
Type |
Description |
---|---|---|
[items] |
Array of ShadowService objects |
Device shadow response list. |
Parameter |
Type |
Description |
---|---|---|
service_id |
Integer |
Service ID. |
service_name |
String |
Service name. |
properties |
Array of ShadowValue objects |
Shadow value. |
type |
String |
Type of the content returned by the device shadow. The value can be JSON or text. This parameter is used in the Site on-premises edition. |
content |
String |
Response of the device shadow in text. This parameter is used in the Site on-premises edition. |
Parameter |
Type |
Description |
---|---|---|
property_name |
String |
Attribute name. |
property_value |
String |
Last reported value of an attribute. |
property_updated_date |
Long |
Time when an attribute is reported for the last time. The format is timestamp(ms) and the UTC time zone is used. |
Status code: 400
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. |
error_msg |
String |
Error description. |
request_id |
String |
Message ID. |
Status code: 404
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. |
error_msg |
String |
Error description. |
request_id |
String |
Message ID. |
Status code: 500
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. |
error_msg |
String |
Error description. |
request_id |
String |
Message ID. |
Example Requests
GET /{project_id}/link/instances/{instance_id}/devices/{device_id}/shadow
Example Responses
Status code: 200
OK
[ ]
Status code: 400
Bad Request
{ "error_code" : "SCB.00000000", "error_msg" : "Parameter is not valid for operation [romalink.link-device.getDeviceShadow]. Parameter is [deviceOid]. Processor is [path].", "request_id" : "cb39e78a-afd3-4e04-901d-70468b1c23dc-1619602712496-cnnorth7a-P-romalink-service01" }
Status code: 404
Not Found
{ "error_code" : "SCB.00000000", "error_msg" : "Not Found", "request_id" : "624c8be1-39b6-47b7-941d-c159aced368a-1619602544650-cnnorth7a-P-romalink-service01" }
Status code: 500
Internal Server Error
{ "error_code" : "ROMA.00110002", "error_msg" : "The instance does not exist. project_id: 397cd10b30544c588b2f4a56d83856c4, instance_id: f3bb386a-23ec-47aa-9943-4c60ac658611", "request_id" : "c8c06d0a-be92-4fdf-9d10-bc20131ab158-1619593104919-cnnorth7a-P-romalink-service01" }
Status Codes
Status Code |
Description |
---|---|
200 |
OK |
400 |
Bad Request |
404 |
Not Found |
500 |
Internal Server Error |
Error Codes
See Error Codes.
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
For any further questions, feel free to contact us through the chatbot.
Chatbot