Billing Change - Convert to Subscription
Updated at：2025-10-20
This API facilitates the conversion of a BCC instance's charge type from pay-as-you-go (postpay) to subscription (prepay).
Request structure
Plain Text
1POST /v{version}/instance/{instanceId}?{action} HTTP/1.1
2Host: bcc.bj.baidubce.com
3Authorization: authorization string
4{
5 "duration": duration
6}Request headers
There are no special headers required beyond the common headers.
Request parameters
| Parameter name | Types | Whether required | Parameter location | Description |
|---|---|---|---|---|
| version | String | Yes | URL parameter | API version number |
| instanceId | String | Yes | URL parameter | Instance ID |
| action | String | Yes | Query | Operation performed on the instance, current value: toPrepay |
| duration | int | Yes | RequestBody | Purchase period (unit: month) |
| relationCds | boolean | No | RequestBody | Modify the associated data disk. Note: This feature is deprecated. Associated pay-as-you-go (postpaid) CDS must also be converted to subscription (prepay) along with the BCC instance. |
| autoRenew | boolean | No | RequestBody | Whether to automatically renew the instance upon expiration. Values: true: Auto-renewal; false: No auto-renewal. Default value: false. |
| autoRenewPeriod | int | No | RequestBody | Duration of each auto-renewal (unit: months). Valid values: 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 24, 36. The default is 1. This parameter is valid only when autoRenew is set to true. |
Response headers
No special headers are required beyond the standard ones.
Response parameters
| Parameter name | Types | Description |
|---|---|---|
| orderId | String | Collection of virtual machine instance IDs, compliant with BCE specifications, is a fixed-length string that only allows uppercase and lowercase letters, numbers, hyphens (-), and underscores (_). |
Request example
Plain Text
1POST /v2/instance/i-dnvIAmdc?toPrepay HTTP/1.1
2Host: bcc.bj.baidubce.com
3ContentType: application/json
4Authorization: bce-auth-v1/f81d3b34e48048fbb2634dc7882d7e21/2015-08-11T04:17:29Z/3600/host/74c506f68c65e26c633bfa104c863fffac5190fdec1ec24b7c03eb5d67d2e1de
5
6{
7 "duration": 2
8}Response example
Plain Text
1HTTP/1.1 200 OK
2x-bce-request-id: 1214cca7-4ad5-451d-9215-71cb844c0a50
3Date: Wed, 03 Dec 2014 06:42:19 GMT
4Content-Type: application/json;charset=UTF-8
5Server: BWS
6{
7 "orderId": "5c001b75e24d45639c7bb83532bcbf52"
8}