Querying All Migration Tasks or a Specified Migration Task of an Instance

Function

This API is used to query all migration tasks or a specified migration task of an instance.

URI

GET /v2/{project_id}/instances/{instance_id}/metadata

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID. For details about how to obtain it, see Obtaining a Project ID. Constraints N/A Range N/A Default Value N/A
instance_id	Yes	String	Definition Instance ID. You can call the API for querying all instances to obtain the instance ID. The instance ID is in the response body. Constraints N/A Range N/A Default Value N/A

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
id	No	String	Definition Task ID. Constraints N/A Range N/A Default Value N/A
type	No	String	Definition Query type. Constraints N/A Range vhost: virtual host exchange queue all Default Value N/A
offset	No	Integer	Definition Current page, starting from 1. Constraints N/A Range N/A Default Value N/A
limit	No	Integer	Definition Current page size. Constraints N/A Range N/A Default Value N/A
name	No	String	Definition Virtual host name. Constraints When the vhost list is queried, this field can be left empty. When the exchange list is queried, set this field to the name of the vhost to which the exchange belongs. When the queue list is queried, set this field to vhost of the queue's exchange-queue's exchange, for example, vhost1-exchange1. Range N/A Default Value N/A

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
total	Integer	Definition Total number of metadata migration tasks. Constraints N/A Range N/A Default Value N/A
task	Array of MetadataTask objects	Definition List of metadata migration tasks. Constraints N/A Range N/A Default Value N/A

**Table 4** MetadataTask
Parameter	Type	Description
id	String	Definition ID of a metadata migration task. Constraints N/A Range N/A Default Value N/A
name	String	Definition Name of a metadata migration task. Constraints N/A Range N/A Default Value N/A
start_date	String	Definition Start time of a metadata migration task. Constraints N/A Range N/A Default Value N/A
status	String	Definition Status of a metadata migration task. Constraints N/A Range creating starting: The migration is in progress. failed finished Default Value N/A
type	String	Definition Metadata migration type. Constraints N/A Range rocketmq: from RocketMQ to RocketMQ. rabbitToRocket: from RabbitMQ to RocketMQ. Default Value N/A

Example Requests

Querying all migration tasks of a RocketMQ instance

GET https://{endpoint}/v2/{project_id}/instances/{instance_id}/metadata

Example Responses

Status code: 200

Returned status code.

{
  "total" : 1,
  "task" : [ {
    "id" : "6cf4dcd3-8471-4139-8b5b-8a3a71f704c7",
    "name" : "task-932331847",
    "start_date" : "2023-03-13 19:43:32.12",
    "status" : "finished",
    "type" : "rabbitToRocket"
  } ]
}