# Stream build logs

**GET** `/v1/builds/{buildId}/logs`

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

Streams the full build log for a build as newline-delimited JSON (`application/x-ndjson`). Each line is a JSON object discriminated by `type`: `log` (a build output line) or `terminal` (end-of-stream marker with a `cursor` for resumption). The default is a finite dump that ends once the stream is drained; pass `follow=true` to keep the connection open for an in-flight build, and `cursor` to resume from a prior terminal cursor.

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 |
| --- | --- | --- | --- |
| `buildId` | `string` | Yes | — |

## Query parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `follow` | `string` | No | Allowed values: `true`, `false`. |
| `cursor` | `string` | No | — |

## Responses

| Status | Description | Media type |
| --- | --- | --- |
| `200` | Build log stream (newline-delimited JSON; one `BuildLogNdjsonLine` per line). | `application/x-ndjson` |
| `401` | Missing or invalid authorization token. | `application/json` |
| `404` | Build not found, or the caller's workspace does not own it (indistinguishable). | `application/json` |
| `429` | Rate limit exceeded. | `application/json` |

### Example response: 200 — Build log stream (newline-delimited JSON; one `BuildLogNdjsonLine` per line).

```json
{
  "code": "string",
  "cursor": "string",
  "kind": "end",
  "message": "string",
  "retryable": true,
  "type": "terminal"
}
```

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

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

### Example response: 404 — Build not found, or the caller's workspace does not own it (indistinguishable).

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

### Example response: 429 — Rate 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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