Modifying a Product Topic

Function

URI

PUT /v2/{project_id}/link/instances/{instance_id}/products/{product_id}/topics/{topic_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID, see Appendix > Obtaining a Project ID in the ROMA Connect API Reference. Minimum: 0 Maximum: 32
instance_id	Yes	String	Instance ID. Minimum: 0 Maximum: 36
product_id	Yes	Integer	Product ID. Minimum: 0 Maximum: 99999999999999999
topic_id	Yes	Integer	Product topic ID. Minimum: 0 Maximum: 99999999999999999

Request Parameters

**Table 2** Request header 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). Minimum: 1 Maximum: 100000

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
permission	Yes	Integer	Topic permission. The options are as follows: 0: publish; 1: subscribe. Minimum: 0 Maximum: 10
name	Yes	String	Topic name. Separate different parts of a topic class with slashes (/). The first part is a user-defined version number, the second part is fixed as the device ID, and the third part is a user-defined topic class name. Format: /${version}/${deviceId}/${customizePart} Example: /v1/deviceid1/customizePart1 and /v1/deviceid2/customizePart2 belong to the topic class /v1/${deviceId}/customizePart. Minimum: 0 Maximum: 64
version	Yes	String	Version number, which is a string of 2 to 50 characters. The value must start and end with a letter or digit. Only letters, digits, hyphens (-), and dots (.) are allowed. Minimum: 0 Maximum: 64
description	No	String	Description, which contains a maximum of 200 characters. Minimum: 0 Maximum: 200

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
product_id	Integer	Homing product ID. Minimum: 1 Maximum: 99999999999999999
topic_id	Integer	Product topic ID. Minimum: 1 Maximum: 99999999999999999
permission	Integer	Topic permission. The options are as follows: 0: publish; 1: subscribe. Minimum: 0 Maximum: 10
topic_name	String	Topic name. Minimum: 0 Maximum: 64
version	String	Version number. Minimum: 0 Maximum: 10
description	String	Description. Minimum: 0 Maximum: 200

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. Minimum: 0 Maximum: 64
error_msg	String	Error description. Minimum: 0 Maximum: 200
request_id	String	Message ID. Minimum: 0 Maximum: 64

Status code: 404

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. Minimum: 0 Maximum: 64
error_msg	String	Error description. Minimum: 0 Maximum: 200
request_id	String	Message ID. Minimum: 0 Maximum: 64

Status code: 500

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. Minimum: 0 Maximum: 64
error_msg	String	Error description. Minimum: 0 Maximum: 200
request_id	String	Message ID. Minimum: 0 Maximum: 64

Example Requests

{
  "permission" : 1,
  "name" : "datas",
  "version" : "v2",
  "description" : "/v2/${deviceId}/datas"
}

Example Responses

Status code: 200

{
  "product_id" : 122888,
  "topic_id" : 17,
  "permission" : 1,
  "topic_name" : "/3.0/${deviceId}/t1",
  "version" : "3.0",
  "description" : "description"
}

Status code: 400

Bad Request

{
  "error_code" : "SCB.00000000",
  "error_msg" : "Parameter is not valid for operation [romalink.link-product-topic.updateProductTopic]. Parameter is [productId]. Processor is [path].",
  "request_id" : "cb39e78a-afd3-4e04-901d-70468b1c23dc-1619602712496-cnnorth7a-P-romalink-service01"
}

Status code: 404

Not Found

{
  "error_code" : "ROMA.00110006",
  "error_msg" : "The resource does not exist. Check whether the resource ID ff38023c-0854-4779-847d-72528e1f5da5 is correct.",
  "request_id" : "72b07918-f6a2-4721-81bf-f3fd5486025e-1619663576836-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"
}