WriteDevicesHotStorageData - IoT Platform - Alibaba Cloud Documentation Center

Writes the data of a custom topic to time series data storage.

Usage notes

The WriteDevicesHotStorageData operation is available only for Standard and Exclusive Enterprise Edition instances.

Limits

The volume of data that you can write per second to the time series data storage of an Enterprise Edition instance by calling this operation varies based on the value that you specified for the Time-series Data Storage IOPS parameter when you purchased the instance. For more information, see Purchase Enterprise Edition instances.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter	Type	Required	Example	Description
Action	String	Yes	WriteDevicesHotStorageData	The operation that you want to perform. Set the value to WriteDevicesHotStorageData.
IotInstanceId	String	Yes	iot-2w****	The instance ID. You can view the instance ID on the Overview page in the IoT Platform console.
Items	String	Yes	{ "Power": { "value": "on", "time": 1524448722000 }, "WF": { "value": 23.6, "time": 1524448722000 } }	The data that you want to write. Specify the value in a JSON object. `{ "key1": { "value":xxx1 "time":yyy1 }, "key2": { "value":xxx2 "time":yyy2 } }` key1 and key2: the field identifiers. The value of Items can contain multiple fields. value: the field value. The following data types are supported: INT32, FLOAT, DOUBLE, TEXT, DATE, BOOLEAN, ENUM, STRUCT, and ARRAY. For more information, see Supported data types. time: the timestamp of the field value. Specify a UNIX timestamp representing the number of milliseconds that have elapsed since January 1, 1970, 00:00:00 UTC.
UserTopic	String	Yes	user/a*/b*	The name of the custom topic. Specify other levels that are required by the custom topic after the `user` level. For more information, see Use custom topics.
ProductKey	String	No	a1BwAGV****	The ProductKey of the product to which the device belongs. Important If you specify this parameter, you must also specify DeviceName.
DeviceName	String	No	device1	The DeviceName of the device. Important If you specify this parameter, you must also specify ProductKey.
IotId	String	No	y4u2weAI********HMle1234	The device ID. Important IotId specifies a GUID for the device. The value of IotId is equivalent to the combination of the values of ProductKey and DeviceName. If you specify this parameter, you do not need to specify ProductKey or DeviceName. If you specify IotId, ProductKey, and DeviceName, the value of IotId takes precedence.

In addition to the preceding operation-specific request parameters, you must specify common request parameters when you call this operation. For more information, see Common parameters.

Response parameters

Parameter	Type	Example	Description
Code	String	iot.system.SystemException	The error code returned if the request failed. For more information, see the Error codes section of this topic.
ErrorMessage	String	A system exception occurred.	The error message returned if the request failed.
RequestId	String	E55E50B7-40EE-4B6B-8BBE-D3ED55CCF565	The request ID.
Success	Boolean	true	Indicates whether the request was successful. Valid values: true false

Examples

Sample requests

http(s)://iot.cn-shanghai.aliyuncs.com/?Action=WriteDevicesHotStorageData
&IotInstanceId=iot-2w****
&Items={ "Power": { "value": "on", "time": 1524448722000 }, "WF": { "value": 23.6, "time": 1524448722000 } }
&UserTopic=user/a***/b***
$ProductKey=a1BwAGV****
$DeviceName=device1
&<Common request parameters>

Sample success responses

XML format

<WriteDevicesHotStorageDataResponse>
  <RequestId>E55E50B7-40EE-4B6B-8BBE-D3ED55CCF565</RequestId>
  <Success>true</Success>
</WriteDevicesHotStorageDataResponse>

JSON format

{
    "RequestId": "E55E50B7-40EE-4B6B-8BBE-D3ED55CCF565",
    "Success": true
}

Error codes

HTTP status code	Error code	Error message	Description
400	iot.device.InvalidFormattedDeviceName	The DeviceName format is invalid.	The format of DeviceName is invalid.
400	iot.device.NullDeviceName	The DeviceName parameter cannot be empty.	DeviceName is not specified.
400	iot.device.SetDevicePropertyFailed	An error occurred while setting the device properties.	The system failed to configure the device properties.
400	iot.prod.InvalidFormattedProductkey	The ProductKey format is invalid.	The format of ProductKey is invalid.
400	iot.prod.NotExistedProduct	The specified product does not exist.	The product that you specify does not exist.
400	iot.prod.NullProductKey	The ProductKey parameter cannot be empty.	ProductKey is not specified.
400	iot.check.InvalidFormattedParameter	The parameter format is invalid.	The formats of one or more parameters are invalid.
400	iot.messagebroker.HALFCONN	The specified operation has failed. The device is in an inactive status.	The heartbeat failed to be detected when the device is inactive.
400	iot.messagebroker.OFFLINE	The specified operation has failed. The device is offline.	The system failed to connect the device to IoT Platform when the device is offline.
400	iot.prod.QueryProductAbilitiesFailed	An error occurred while querying the product features.	The system failed to obtain the features of the product.
400	iot.system.IllegalRequest	The request parameter is invalid.	One or more request parameters are invalid.
400	iot.dataalgo.ScriptMethodNotFound	Method is not found in script.	The method does not exist in the script.
400	iot.dataalgo.ScriptExecutionTimeout	Script execution timeout.	A timeout error occurred when the script was being run.
400	iot.dataalgo.ScriptExecutionOomException	Script execution is out of memory.	The memory usage limit is exceeded when the script was being run.
400	Iot.Device.NotExistedDevice	The device does not exist.	The device does not exist or is not activated.
400	iot.device.InvalidIoTId	The specified device ID is invalid.	The device ID is invalid.
400	iot.dataalgo.ScriptExecutionException	Script execution exception.	An exception occurred when the script was being run.
400	iot.prod.QueryPropertyNotFound	Query property not found.	The properties that you queried do not exist.
400	iot.dataalgo.ScriptDataFormatException	Script function result format is incorrect.	The script format is invalid.
400	iot.dataalgo.ScriptRelationNotExist	Script relation not exist.	The script relationship does not exist.
400	iot.tsl.TslParseError	TSLlParseError: %s.	The %s Thing Specification Language (TSL) parsing error occurred.
400	iot.tsl.InvalidFormattedTslError	The TSL format is invalid.	The format of the TSL data is invalid.
400	iot.tsl.InvalidHistoryTimestampError	The history timestamp is invalid.	The timestamp that you specify is invalid.
400	iot.storage.HotStorageCapacityNotEnough	The timeline storage capacity not enough.	The capacity of time series data storage is insufficient.
400	iot.storage.HotStorageIopsWriteNotEnough	The timeline storage write IOPS is not enough.	The write IOPS of time series data storage is insufficient.

For a list of error codes, see Service error codes.