# Roll an app back to an existing deployment

**POST** `/v1/apps/{appId}/rollback`

> **Deprecated** — this operation is still served but should not be adopted in new integrations.

⚠️ Experimental endpoint: this API is in active development and may change at any time without notice. ⚠️

Deprecated: use `POST /v1/services/{serviceId}/rollback` instead.

Makes any eligible existing deployment live behind the app's stable endpoint (rollback or roll-forward). Unlike promote, a stopped target is started and waited until it is running before the endpoint is switched, so the currently-live deployment keeps serving with zero downtime. Returns the app endpoint domain.

Base URL: `https://api.prisma.io`

Tags: `[Experimental]`

## Authorization

Any ONE of the following options authorizes this operation; every scheme listed within an option is required together.

| Option | Scheme | Type | Sent as | Scopes |
| --- | --- | --- | --- | --- |
| Option 1 | `OAuth2` | `oauth2` | `Authorization: Bearer <access token>` | `offline_access`, `workspace:admin` |
| Option 2 | `Bearer` | `http` | `Authorization: Bearer <token>` (JWT) | — |

### OAuth 2.0 flows

- **OAuth2 · authorizationCode**
  - Authorization URL: `https://auth.prisma.io/authorize`
  - Token URL: `https://auth.prisma.io/token`
  - Refresh URL: `https://auth.prisma.io/token`
  - Scope `offline_access` — Offline access
  - Scope `workspace:admin` — Full access to workspace resources

## Path parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `appId` | `string` | Yes | — |

## Request body

Optional. Media type: `application/json`

### Example request body

```json
{
  "deploymentId": "string",
  "versionId": "string"
}
```

## Responses

| Status | Description | Media type |
| --- | --- | --- |
| `200` | Deployment made live behind the app endpoint. The `reassignedDomains` field indicates how many custom domains were moved from the previously-live deployment to the new one. | `application/json` |
| `401` | Missing or invalid authorization token. | `application/json` |
| `403` | Insufficient permissions to access this resource. | `application/json` |
| `404` | App or deployment not found, or the deployment's Foundry artifact no longer exists. | `application/json` |
| `409` | The deployment cannot be made live (e.g. it has no runnable artifact or is mid-teardown and cannot reach a running state). | `application/json` |
| `413` | Request body exceeds this endpoint's size cap. | `application/json` |
| `422` | Validation failed (e.g. malformed app ID or missing deployment ID). | `application/json` |
| `429` | Rate limit or Compute resource limit exceeded. | `application/json` |

### Example response: 200 — Deployment made live behind the app endpoint. The `reassignedDomains` field indicates how many custom domains were moved from the previously-live deployment to the new one.

```json
{
  "data": {
    "appEndpointDomain": "string",
    "reassignedDomains": 0
  }
}
```

### Example response: 401 — Missing or invalid authorization token.

```json
{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}
```

### Example response: 403 — Insufficient permissions to access this resource.

```json
{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}
```

### Example response: 404 — App or deployment not found, or the deployment's Foundry artifact no longer exists.

```json
{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}
```

### Example response: 409 — The deployment cannot be made live (e.g. it has no runnable artifact or is mid-teardown and cannot reach a running state).

```json
{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}
```

### Example response: 413 — Request body exceeds this endpoint's size cap.

```json
{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}
```

### Example response: 422 — Validation failed (e.g. malformed app ID or missing deployment ID).

```json
{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}
```

### Example response: 429 — Rate limit or Compute resource limit exceeded.

```json
{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}
```

## Related pages

- [[Experimental]](./tags/experimental.md)
- [Acquire Alchemy deploy lease](./postv1projectsbyprojectidbranchesbybranchidalchemy-statelease.md)
- [Agents](./tags/agents.md)
- [Alchemy state store version](./getv1projectsbyprojectidbranchesbybranchidalchemy-stateversion.md)
- [Buckets](./tags/buckets.md)
- [Connections](./tags/connections.md)
- [Create a branch](./postv1projectsbyprojectidbranches.md)
- [Create a custom domain](./postv1appsbyappiddomains.md)
- [Create a custom domain](./postv1servicesbyserviceiddomains.md)
- [Create a workspace](./postv1workspaces.md)

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