Reporting a Device Message

Function

This API is used for a device to report custom data to IoTDA, which then forwards reported messages to an application or other Huawei Cloud services for storage and processing.

URI

Request Method	POST
URI	/v5/devices/{device_id}/sys/messages/up
Transport Protocol	HTTPS

Request Parameters

Parameter	Mandatory	Type	Location	Description
access_token	Yes	String	Header	Explanation: Access token returned after the device authentication API is called. Value range: 1–256 characters.
device_id	Yes	String	Path	Explanation: Device ID, which uniquely identifies a device. The value of this parameter is specified during device registration or allocated by IoTDA. If the value is allocated by the platform, the value is in the format of [product_id]_[node_id]. Value range: The value is a string of no more than 128 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

Parameter

Mandatory

Type

Location

Description

access_token

Yes

String

Header

Explanation:

Access token returned after the device authentication API is called.

Value range:

1–256 characters.

device_id

Yes

String

Path

Explanation:

Device ID, which uniquely identifies a device. The value of this parameter is specified during device registration or allocated by IoTDA. If the value is allocated by the platform, the value is in the format of [product_id]_[node_id].

Value range:

The value is a string of no more than 128 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

This API allows a device to use a request body to report custom data to IoTDA, which then forwards the body content to an application or other Huawei Cloud services for storage and processing. IoTDA has no specific format requirements on the body content. This API can carry data whose size is smaller than 1 MB.

Example Request

POST https://{endpoint}/v5/devices/{device_id}/sys/messages/up
Content-Type: application/json
access_token: ******
{
  "name" : "name",
  "id" : "id",
  "content" : "messageUp"
}

Example Response

Status Code: 200 ok

Error Code

HTTP Status Code	HTTP Status Code Description	Error Code	Error Message	Error Description
400	Bad Request	IOTDA.000006	Invalid input data.	Invalid request parameters.
403	Forbidden	IOTDA.000004	Invalid access token.	Invalid token.
		IOTDA.021101	Request reached the maximum rate limit.	The request frequency has reached the upper limit.
		IOTDA.021102	The request rate has reached the upper limit of the tenant, limit %s.	The request frequency has reached the upper limit of the tenant.