Creating a Database User

Description

This API is used to create a database user for a specified instance.

Constraints

This API applies only to DDS Community Edition.
This operation is not allowed if the DB instance is in any of the following statuses: creating, changing instance class, changing port, frozen, restarting, or abnormal.

URI

URI format
POST /v3/{project_id}/instances/{instance_id}/db-user
URI example
https://dds.ap-southeast-1.myhuaweicloud.com/v3/0549b4a43100d4f32f51c01c2fe4acdb/instances/f032c0db12d147ef87317efdfacbbe15in02/db-user

**Table 1** Path parameters
Name	Mandatory	Type	IN	Description
project_id	Yes	string	path	Explanation: Project ID of a tenant in a region. To obtain the project ID, see Obtaining a Project ID. Constraints: N/A Value range: N/A Default value: N/A
instance_id	Yes	string	path	Explanation: Instance ID, which can be obtained by calling the API described in Querying Instances and Details. If you do not have an instance, call the API described in Creating a DB Instance to create one. Constraints: N/A Value range: N/A Default value: N/A

Request Parameters

**Table 2** Request header parameters
Name	Mandatory	Type	IN	Description
X-Auth-Token	Yes	string	header	Definition User token obtained from IAM. For details, see Authentication. Constraints N/A Range N/A Default Value N/A

**Table 3** Parameter description
Name	Type	Mandatory	Description
user_name	String	Yes	The database username. The value must be 1 to 64 characters and can contain only letters (from A to Z or from a to z), digits (from 0 to 9), hyphens (-), and periods (.). The username cannot be an internal reserved username, such as drsFull or drsIncremental.
user_pwd	String	Yes	The password of the database user. The value must be 8 to 32 characters in length and contain uppercase letters (A to Z), lowercase letters (a to z), digits (0 to 9), and special characters, such as ~!@#%^*-_=+? Enter a strong password to improve security, preventing security risks such as brute force cracking.
roles	Array of Object	Yes	The role of the database user. For details, see Table 4. roles restricts the permissions of the account. If an empty array is specified, the account does not have any permission.
db_name	String	No	The database where the new user is located. The default value is "admin". The value must be 1 to 64 characters and can contain only letters (from A to Z or from a to z), digits (from 0 to 9), and underscores (_).

**Table 4** roles field data structure description
Name	Type	Mandatory	Description
role_db_name	String	Yes	The name of the database to which the role granted to the new user belongs. The value must be 1 to 64 characters and can contain only letters (from A to Z or from a to z), digits (from 0 to 9), and underscores (_).
role_name	String	Yes	The name of the role granted to the new user. The value must be 1 to 64 characters and can contain only letters (from A to Z or from a to z), digits (from 0 to 9), hyphens (-), and periods (.).

Example Requests

Creating a user testDb for DB instance test

{ 
    "user_name":"test" ,
    "user_pwd":"******",
    "roles":[{
        "role_db_name":"testDb" ,
        "role_name":"testRole"
     }],
    "db_name":"test_db"
}