Changing the Number of Reserved Instances

This API is used to change the number of reserved instances.

PUT /v2/{project_id}/fgs/functions/{function_urn}/reservedinstances

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID.
function_urn	Yes	String	Function URN. For details, see the function model description.

**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 user token.
Content-Type	Yes	String	Message body type (format).

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
count	Yes	Integer	Number of reserved instances.
idle_mode	No	Boolean	Whether to enable the idle mode.
tactics_config	No	TacticsConfig object

**Table 4** TacticsConfig
Parameter	Mandatory	Type	Description
cron_configs	No	Array of CronConfig objects	Scheduled configuration list.
metric_configs	No	Array of MetricConfig objects	Flow control configuration list.

**Table 5** CronConfig
Parameter	Mandatory	Type	Description
name	No	String	Scheduled configuration name.
cron	No	String	Cron expression.
count	No	Integer	Number of started reserved instances.
start_time	No	Long	Start time (epoch format).
expired_time	No	Long	Expiry time (epoch format).

**Table 6** MetricConfig
Parameter	Mandatory	Type	Description
name	No	String	Flow control configuration name.
type	No	String	Flow control type. Currently, only reserved instance utilization is supported. Enumeration values: Concurrency
threshold	No	Integer	Flow control threshold.
min	No	Integer	Minimum value.

Status code: 200

**Table 7** Response body parameters
Parameter	Type	Description
count	Integer	Number of reserved instances.
idle_mode	Boolean	Whether to enable idle mode.
tactics_config	TacticsConfig object

**Table 8** TacticsConfig
Parameter	Type	Description
cron_configs	Array of CronConfig objects	Scheduled configuration list.
metric_configs	Array of MetricConfig objects	Flow control configuration list.

**Table 9** CronConfig
Parameter	Type	Description
name	String	Scheduled configuration name.
cron	String	Cron expression.
count	Integer	Number of started reserved instances.
start_time	Long	Start time (epoch format).
expired_time	Long	Expiry time (epoch format).

**Table 10** MetricConfig
Parameter	Type	Description
name	String	Flow control configuration name.
type	String	Flow control type. Currently, only reserved instance utilization is supported. Enumeration values: Concurrency
threshold	Integer	Flow control threshold.
min	Integer	Minimum value.

Status code: 400

**Table 11** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 401

**Table 12** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 403

**Table 13** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 404

**Table 14** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 15** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Update the number of a function's reserved instances to 3.

PUT https://{Endpoint}/v2/{project_id}/fgs/functions/{function_urn}/reservedinstances

{
  "count" : 3
}

Status code: 200

{
  "count" : 2
}

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