## POST /api/v2/vps/{id}/snapshot-schedules

**Set VPS snapshot schedule**

Create or replace the singleton snapshot schedule for a VPS. Read `GET /api/v2/vps/{id}/snapshot-schedules` first; if `available` is false, `limits.totalSnapshots` is 0, or `actions.canEnable.allowed` is false, the POST will be rejected. Snapshot schedules use the same short-lived local block-on-write snapshot slots as manual snapshots; they are for fast rollback and are not offsite backups. Snapshots are automatically retained for about 24 hours. To buy or increase snapshot capacity, call `GET /api/v2/vps/{id}/actions/upgrade`, find `configurableOptions[].key === "snapshotSlots"`, then preview/commit `POST /api/v2/vps/{id}/actions/config` with `resources.snapshotSlots`, or change to a plan that includes snapshots. `intervalHours` is floored and clamped by the route to the supported range 4 through 24 hours.

### Related Endpoints

- `GET /api/v2/vps/{id}/snapshot-schedules`: Get VPS snapshot schedule
- `DELETE /api/v2/vps/{id}/snapshot-schedules`: Delete VPS snapshot schedule
- `GET /api/v2/vps/{id}`: Get VPS details

### Headers

- `Accept`: application/json
- `Authorization`: Bearer YOUR_API_KEY
- Required API scope: `write:vm`
- `Content-Type`: application/json

### Parameters

- `id` (path, string, required): Public VPS ID from `GET /api/v2/vps` `data[].id`. Do not invent this value; use the exact ID returned by the referenced API response. Example: `vps_01hxa3b4c5d6e7f8g9h0j1k2m3`

### Request Body

- `enabled` (boolean, required) Example: `true`
- `intervalHours` (number, required) [min: 4, max: 24] Example: `12`

### Request Examples

#### Enable snapshot schedule

```bash
curl -X POST "https://cloud.hostup.se/api/v2/vps/vps_01hxa3b4c5d6e7f8g9h0j1k2m3/snapshot-schedules" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -d '{
    "enabled": true,
    "intervalHours": 12
  }'
```

```json
{
  "enabled": true,
  "intervalHours": 12
}
```

### Response Schema

- `schedule` (object,null, required) Example: `null`
- `limits` (object, required)
- `limits.totalSnapshots` (integer, required): Snapshot slots included with the current plan/configuration. `0` means scheduling cannot be enabled until snapshot capacity is added. Example: `3`
- `available` (boolean, required): True when the current plan/configuration includes at least one snapshot slot. Example: `true`
- `reason` (string,null, required) Example: `null`
- `actions` (object, required)
- `actions.canEnable` (object, required)
- `actions.canEnable.allowed` (boolean, required) Example: `true`
- `actions.canEnable.reason` (string,null, required) Example: `null`
- `actions.canEnable.code` (string,null, optional): Machine-readable reason code when an action is blocked. Example: `pending_order`

### Responses

#### 200 - Snapshot schedule saved.
```json
{
  "schedule": {
    "enabled": true,
    "intervalHours": 12,
    "lastRun": "2026-04-27T00:00:00.000Z",
    "nextRun": "2026-04-27T12:00:00.000Z"
  },
  "limits": {
    "totalSnapshots": 3
  },
  "available": true,
  "reason": null,
  "actions": {
    "canEnable": {
      "allowed": true,
      "reason": null
    }
  }
}
```

#### 400 - Invalid request. The response body is an RFC 7807 Problem Details document.
```json
{
  "type": "https://developer.hostup.se/errors/invalid_request",
  "title": "Invalid request",
  "status": 400,
  "detail": "The request body failed validation.",
  "code": "invalid_request",
  "instance": "/api/v2/resource",
  "requestId": "req_01hxa3b4c5d6e7f8g9h0j1k2m3",
  "timestamp": "2026-04-27T12:34:56.000Z",
  "errors": [
    {
      "pointer": "/items/0/domainName",
      "detail": "`domainName` is required.",
      "code": "invalid_request"
    }
  ]
}
```

#### 401 - Unauthorized. Authentication is required.
```json
{
  "type": "https://developer.hostup.se/errors/unauthorized",
  "title": "Unauthorized",
  "status": 401,
  "detail": "Authentication is required.",
  "code": "unauthorized",
  "instance": "/api/v2/resource",
  "requestId": "req_01hxa3b4c5d6e7f8g9h0j1k2m3",
  "timestamp": "2026-04-27T12:34:56.000Z"
}
```

#### 403 - Forbidden. The caller lacks a required scope or does not own the resource.
```json
{
  "type": "https://developer.hostup.se/errors/forbidden",
  "title": "Forbidden",
  "status": 403,
  "detail": "The caller lacks a required scope or does not own the resource.",
  "code": "forbidden",
  "instance": "/api/v2/resource",
  "requestId": "req_01hxa3b4c5d6e7f8g9h0j1k2m3",
  "timestamp": "2026-04-27T12:34:56.000Z"
}
```

#### 404 - Not found. The resource does not exist or is not owned by the caller.
```json
{
  "type": "https://developer.hostup.se/errors/not_found",
  "title": "Not found",
  "status": 404,
  "detail": "The requested resource could not be found.",
  "code": "not_found",
  "instance": "/api/v2/resource",
  "requestId": "req_01hxa3b4c5d6e7f8g9h0j1k2m3",
  "timestamp": "2026-04-27T12:34:56.000Z"
}
```

#### 429 - Rate limited. Retry after the limit resets. 429 responses include `Retry-After` seconds plus `X-RateLimit-*` headers.
```json
{
  "type": "https://developer.hostup.se/errors/rate_limit_exceeded",
  "title": "Too many requests",
  "status": 429,
  "detail": "Too many requests. Retry after the limit resets.",
  "code": "rate_limit_exceeded",
  "instance": "/api/v2/resource",
  "requestId": "req_01hxa3b4c5d6e7f8g9h0j1k2m3",
  "timestamp": "2026-04-27T12:34:56.000Z"
}
```

#### 500 - Internal error. Retry later or contact support if the issue persists.
```json
{
  "type": "https://developer.hostup.se/errors/internal_error",
  "title": "Internal server error",
  "status": 500,
  "detail": "An unexpected error occurred. Retry later or contact support if the issue persists.",
  "code": "internal_error",
  "instance": "/api/v2/resource",
  "requestId": "req_01hxa3b4c5d6e7f8g9h0j1k2m3",
  "timestamp": "2026-04-27T12:34:56.000Z"
}
```
