Collects Statistics on the Total Number of Historical Commands of a Device

Collects statistics on the total number of historical commands of a device.

You can debug this API through automatic authentication in API Explorer or use the SDK sample code generated by API Explorer.

POST /v5/iot/{project_id}/devices/{device_id}/async-commands-history/count

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Parameter description: project ID. For details about how to obtain the project ID, see Obtaining a Project ID.
device_id	Yes	String	Parameter description: ID of the device to which the command is delivered. The ID is unique and is allocated by the platform during device registration. Value: The value can contain a maximum of 128 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
start_time	No	String	Parameter description: records of command delivered after startTime are queried. The value is in the format of yyyyMMdd'T'HHmmss'Z', for example, 20151212T121212Z.
end_time	No	String	Parameter description: records of command delivered before endTime are queried. The value is in the format of yyyyMMdd'T'HHmmss'Z', for example, 20151212T121212Z.
status	No	String	Parameter description: command status.
command_name	No	String	Parameter description: command name.

**Table 3** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	No	String	Parameter description: user token. You can obtain the token by calling the IAM API Obtaining a User Token Through Password Authentication. In the returned response header, X-Subject-Token is the desired user token. For details about how to obtain the token, see Token Authentication.
Instance-Id	No	String	Parameter description: instance ID. Unique identifier of each instance in the physical multi-tenant scenario. Mandatory for professional editions and recommended in other cases. Log in to the IoTDA console and choose Overview in the navigation pane to view the instance ID. For details, see Viewing Instance Details.

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
count	Long	Total number of records that meet the filter criteria.

Collects statistics on the total number of historical commands of a device.

POST https://{endpoint}/v5/iot/{project_id}/devices/{device_id}/async-commands-history/count

Status code: 200

{
  "count" : 100
}

Parent topic: Asynchronous Device Command

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