This API is used to enable public access for a dedicated gateway.

POST /v2/{project_id}/apigw/instances/{instance_id}/nat-eip

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain a project ID, see "Appendix" > "Obtaining a Project ID" in this document.
instance_id	Yes	String	Gateway ID, which can be obtained from the gateway information on the APIG console.

**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 a token.

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
bandwidth_size	No	String	Outbound access bandwidth. Unit: Mbit/s
bandwidth_charging_mode	No	String	Billing type of the public outbound access bandwidth. bandwidth: billed by bandwidth traffic: billed by traffic Default: bandwidth Enumeration values: bandwidth traffic

Status code: 400

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

Status code: 401

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

Status code: 403

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 404

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

{
  "bandwidth_size" : "5",
  "bandwidth_charging_mode" : "traffic"
}

Status code: 400

Bad Request

{
  "error_code" : "APIC.9210",
  "error_msg" : "create cloud nat eip failed"
}

Status code: 401

Unauthorized

{
  "error_code" : "APIC.7102",
  "error_msg" : "Incorrect token or token resolution failed"
}

Status code: 403

Forbidden

{
  "error_code" : "APIC.7106",
  "error_msg" : "No permissions to request for the method"
}

Status code: 404

Not Found

{
  "error_code" : "APIC.7302",
  "error_msg" : "Instance not found"
}

Status code: 500

Internal Server Error

{
  "error_code" : "APIC.9000",
  "error_msg" : "Failed to request internal service"
}

Enabling Public Access for a Dedicated Gateway