> ## Documentation Index
> Fetch the complete documentation index at: https://docs.basaltic.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Get a backup



## OpenAPI

````yaml /api-reference/specs/database.yaml get /v1/clusters/{cluster_id}/backups/{backup_id}
openapi: 3.0.3
info:
  title: Basaltic Database API
  version: 1.0.0
  description: |
    Managed database clusters — provision an engine, convert a single node to
    high availability, fail over between members and restore from a
    backup.
  contact:
    name: Basaltic Support
    email: ping@basaltic.sh
  license:
    name: Proprietary
    url: https://basaltic.sh/terms
servers:
  - url: https://database.{region}.basaltic.sh
    description: Regional API endpoint
    variables:
      region:
        default: sa-saopaulo-1
        description: Region code
security:
  - SignatureAuth: []
paths:
  /v1/clusters/{cluster_id}/backups/{backup_id}:
    get:
      tags:
        - Database
      summary: Get a backup
      operationId: getBackup
      parameters:
        - name: cluster_id
          in: path
          required: true
          schema:
            type: string
            format: uuid
            example: 9b2e4c7a-1f3d-4a8e-bc25-6d0f1a2b3c4d
        - name: backup_id
          in: path
          required: true
          schema:
            type: string
            format: uuid
            example: b4c5d6e7-f8a9-4012-b3c4-d5e6f7a8b9c0
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BackupResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    BackupResponse:
      type: object
      properties:
        backup:
          $ref: '#/components/schemas/Backup'
    Backup:
      type: object
      required:
        - id
        - cluster_id
        - kind
        - object_uri
        - status
        - started_at
      properties:
        id:
          type: string
          format: uuid
          example: b4c5d6e7-f8a9-4012-b3c4-d5e6f7a8b9c0
        cluster_id:
          type: string
          format: uuid
          example: 9b2e4c7a-1f3d-4a8e-bc25-6d0f1a2b3c4d
        kind:
          type: string
          description: >
            Backup kind. base and incremental are what a customer requests; wal
            and snapshot are catalogue entries the platform writes.
          enum:
            - base
            - incremental
            - wal
            - snapshot
          example: base
        object_uri:
          type: string
          description: Object-storage URI of the backup artifact.
          example: s3://dbaas-backups/9b2e4c7a/full/20260115-093000
        backend_id:
          type: string
          description: >
            The engine backend's own name for this backup — for postgres, the
            pgbackrest label. It is what a restore passes to select THIS backup
            rather than the stanza's most recent. Absent on failed runs and on
            backups taken before the platform recorded labels.
          example: 20260830-120000F
        restorable:
          type: boolean
          description: >
            Whether this backup can be chosen by name. False means it can only
            be restored while it is the cluster's most recent succeeded backup —
            a backup picker should offer it accordingly.
          example: true
        size_bytes:
          type: integer
          format: int64
          example: 20132659200
        earliest_restore_at:
          type: string
          format: date-time
          example: '2026-01-15T09:30:00Z'
        latest_restore_at:
          type: string
          format: date-time
          example: '2026-01-15T21:30:00Z'
        end_lsn:
          type: string
          description: Postgres WAL LSN at backup end.
          example: 0/16B6B50
        status:
          type: string
          description: Backup status (e.g. running, succeeded, failed).
          example: succeeded
        fault:
          $ref: '#/components/schemas/Fault'
        started_at:
          type: string
          format: date-time
          example: '2026-01-15T09:30:00Z'
        finished_at:
          type: string
          format: date-time
          example: '2026-01-15T09:32:00Z'
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - code
            - message
            - request_id
          properties:
            code:
              type: string
              description: Error code identifying the type of error
              example: INVALID_INPUT
            message:
              type: string
              description: Human-readable error message
              example: Invalid request parameters
            request_id:
              type: string
              format: uuid
              description: Request ID for debugging
              example: 550e8400-e29b-41d4-a716-446655440000
    Fault:
      type: object
      description: Error detail attached to a resource in status=error.
      required:
        - code
        - message
        - at
      properties:
        code:
          type: string
          example: provision_failed
        message:
          type: string
          example: compute instance failed to boot
        details:
          type: string
          example: quota exceeded in subnet
        at:
          type: string
          format: date-time
          example: '2026-01-15T09:31:00Z'
  responses:
    Unauthorized:
      description: Authentication required or token invalid
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: UNAUTHORIZED
              message: Authentication required
              request_id: 550e8400-e29b-41d4-a716-446655440000
    Forbidden:
      description: Insufficient permissions
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: ACCESS_DENIED
              message: You don't have permission to perform this action
              request_id: 550e8400-e29b-41d4-a716-446655440000
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: NOT_FOUND
              message: Resource not found
              request_id: 550e8400-e29b-41d4-a716-446655440000
  securitySchemes:
    SignatureAuth:
      type: apiKey
      in: header
      name: Authorization
      description: >
        Request signing with an access key issued to a service account. An

        HMAC-SHA256 over a canonical form of the request, close to AWS SigV4.

        The `basaltic` CLI signs for you.


        Send `Authorization`, `X-Date` (UTC, `YYYYMMDDTHHMMSSZ`) and `X-Nonce`

        (random per request); add `X-Content-Sha256` to bind a body, and

        `X-Amz-Security-Token` when using temporary credentials.


        ```

        Authorization: BASALTIC-HMAC-SHA256
        Credential=<access_key_id>/<date>/<region>/basaltic/basaltic_request,
        SignedHeaders=host;x-date;x-nonce, Signature=<hex>

        ```


        `<region>` is the region code you are calling, or `global` for the
        global

        services. A signature is valid for 5 minutes from `X-Date`, and mutating

        requests are replay-guarded on the nonce.


        **Full signing procedure, including a working implementation:**

        https://docs.basaltic.sh/authentication


        ## Rate limits

        There is no global request budget. A limit applies only where an

        operation documents a `429`, and that operation says what it counts.

        Those responses carry `X-RateLimit-Limit`, `X-RateLimit-Remaining`,

        `X-RateLimit-Reset` and, on a `429`, `Retry-After` — read them rather

        than hard-coding a number. Retrying before `Retry-After` is refused and

        extends the window. Everything else is bounded by quota, not by request

        rate.

````