Changing a DB Instance Description

This API is used to change a DB instance description. Before calling this API:

PUT /v3/{project_id}/instances/{instance_id}/alias

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID.
instance_id	Yes	String	Instance ID, which is compliant with the UUID format.

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the token value.
X-Language	No	String	Request language type. The default value is en-us. Values: en-us zh-cn

**Table 3** Request body parameter
Parameter	Mandatory	Type	Description
alias	Yes	String	Instance description. The value can contain 0 to 64 characters, including letters, digits, periods (.), underscores (_), and hyphens (-).

Status code: 400

**Table 4** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Changing the description of a DB instance to Test_alias

PUT https://{endpoint}/v3/056538411200d4cd2f79c003c7606412/instances/096c0fc43e804757b59946b80dc27f8bin07/alias
{
  "alias" : "Test_alias"
}

Status code: 200

Success.

{ }

For details, see Status Codes.

For details, see Error Codes.

Parent topic: Instance Management

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