Updated on 2026-08-25 GMT+08:00

Logging In to an Instance

Function

This API is used to log in to an instance.

Authorization Information

Each account has permissions to call all APIs, but IAM users must have the required permissions specifically assigned.

If you are using role/policy-based authorization, see the required permissions in Permissions Policies and Supported Actions.
If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action

Access Level

Resource Type (*: required)

Condition Key

Alias

Dependencies

das:connection:login

connection

Instance

-

das:connections:login

-

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
das:connection:login	connection	Instance	-	das:connections:login	-

URI

POST /v3/{project_id}/connections/{connection_id}/login-actions

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints N/A Range The value can contain 32 characters. Only letters and digits are supported. Default Value N/A
connection_id	Yes	String	Definition Connection ID established between a database account and the database. The database user ID is created using the API in Creating an Instance Connection. Constraints N/A Range The value is a UUID containing 36 characters. Only letters, digits, and hyphens (-) are allowed. Default Value N/A

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
login	No	Table 3 Object	Definition Login information with a saved password Constraints N/A Range N/A Default Value N/A
logout	No	Table 4 Object	Definition Logout information Constraints N/A Range N/A Default Value N/A
retry_login	No	Table 5 Object	Definition Login information without a password saved Constraints N/A Range N/A Default Value N/A

**Table 3** LoginInfo
Parameter	Mandatory	Type	Description
username	No	String	Definition Username for logging in to a database Constraints N/A Range N/A Default Value N/A

**Table 4** LogoutInfo
Parameter	Mandatory	Type	Description
username	No	String	Definition Username for logging out of a database Constraints N/A Range N/A Default Value N/A

**Table 5** RetryLoginInfo
Parameter	Mandatory	Type	Description
username	No	String	Definition Username for logging in to a database Constraints N/A Range N/A Default Value N/A
password	Yes	String	Definition Password for logging in to a database Constraints N/A Range N/A Default Value N/A
is_save_password	Yes	Boolean	Definition Whether a password needs to be saved Constraints N/A Range N/A Default Value N/A

Response Parameters

None

Example Requests

POST https://das.cn-north-1.myhuaweicloud.com/v3/054e292c9880d4992f02c0196d3ea468/connections/179e525e-0e9c-4dcc-9dd7-ee2f36121e23/login-actions
 
{
  "retry_login": {
    "username": "my_username",
    "password": "my_password",
    "is_save_password": false
  }
}

Example Responses

Status code: 200

Success.

Status Codes

Status Code	Description
200	Success.
400	Client error.
500	Server error.

Error Codes

See Error Codes.

Parent topic: Intelligent O&M