Help Center/Server Migration Service/API Reference/API/Command Management/Obtaining Commands from SMS
Updated on 2026-01-27 GMT+08:00
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Obtaining Commands from SMS

Function

This API is called by the migration Agent on source servers to obtain commands from the SMS server.

Calling Method

For details, see Calling APIs.

URI

GET /v3/sources/{server_id}/command

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

server_id

Yes

String

The ID of the source server that the command is sent to.

Minimum: 1

Maximum: 36

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token.

The token can be obtained by calling the IAM API for obtaining a user token. The value of X-Subject-Token in the response header is the user token.

Minimum: 1

Maximum: 16384

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

command_name

String

The command name. The value can be START, STOP, SKIP, PREMIGRATE, TASK_NOT_STARTED, TASK_HAS_STOPPED, or TASK_HAS_FINISHED.

Minimum: 0

Maximum: 255

command_param

CommandParam object

Command response parameters.

Table 4 CommandParam

Parameter

Type

Description

task_id

String

The task ID.

Minimum: 0

Maximum: 255

bucket

String

The bucket name.

Minimum: 0

Maximum: 255

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error_code

String

The error code.

Minimum: 0

Maximum: 255

error_msg

String

The error message.

Minimum: 0

Maximum: 1024

Status code: 401

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

The error code.

Minimum: 0

Maximum: 255

error_msg

String

The error message.

Minimum: 0

Maximum: 1024

Status code: 403

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

The error code.

Minimum: 0

Maximum: 255

error_msg

String

The error message.

Minimum: 0

Maximum: 255

encoded_authorization_message

String

The encrypted authorization information.

Minimum: 0

Maximum: 65535

error_param

Array of strings

Error parameters.

Minimum: 0

Maximum: 65535

Array Length: 1 - 20

details

Array of details objects

The error details.

Array Length: 1 - 20

Table 8 details

Parameter

Type

Description

error_code

String

The SMS error code.

Minimum: 0

Maximum: 65535

error_msg

String

The SMS error message.

Minimum: 0

Maximum: 65535

Status code: 404

Table 9 Response body parameters

Parameter

Type

Description

error_code

String

The error code.

Minimum: 0

Maximum: 255

error_msg

String

The error message.

Minimum: 0

Maximum: 1024

Status code: 500

Table 10 Response body parameters

Parameter

Type

Description

error_code

String

The error code.

Minimum: 0

Maximum: 255

error_msg

String

The error message.

Minimum: 0

Maximum: 1024

Example Requests

This example obtains the command sent to the Agent installed on the source server whose ID is f32ab4d6-d150-4fb3-aa55-edbb5cf9947f.

GET https://{endpoint}/v3/sources/f32ab4d6-d150-4fb3-aa55-edbb5cf9947f/command

Example Responses

Status code: 200

Obtaining commands from SMS succeeded.

{
  "command_name" : "START",
  "command_param" : {
    "task_id" : "xxxxxxxxxxxxxxxxxxxxxxxx00000001"
  }
}

Status code: 403

Authentication failed.

{
  "error_code" : "SMS.9004",
  "error_msg" : "The current account does not have the permission to execute policy. You do not have permission to perform action XXX on resource XXX.",
  "encoded_authorization_message" : "XXXXXX",
  "error_param" : [ "You do not have permission to perform action XXX on resource XXX." ],
  "details" : [ {
    "error_code" : "SMS.9004",
    "error_msg" : "You do not have permission to perform action XXX on resource XXX."
  } ]
}

Status Codes

Status Code

Description

200

Obtaining commands from SMS succeeded.

400

Bad Request

401

Unauthorized

403

Authentication failed.

404

Not Found

500

Internal Server Error

Error Codes

See Error Codes.

Parent topic:Command Management