openapi: 3.0.3
info:
  title: Apache Iceberg REST Catalog Commits Views API
  description: The Apache Iceberg REST Catalog API is an open standard (OpenAPI spec) for interacting with Apache Iceberg table catalogs. It provides a common HTTP interface for catalog operations including namespace management, table lifecycle, view management, and metadata operations. Multiple catalog implementations support this specification including Apache Polaris, Project Nessie, AWS Glue, and Google BigLake.
  version: 0.0.1
  contact:
    name: Apache Iceberg Community
    url: https://iceberg.apache.org/community/
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
servers:
- url: https://{catalog-host}
  description: Iceberg REST Catalog endpoint
  variables:
    catalog-host:
      default: localhost:8181
      description: Hostname and port of the Iceberg REST catalog service
security:
- BearerAuth: []
- OAuth2:
  - catalog
tags:
- name: Views
  description: View lifecycle management
paths:
  /v1/namespaces/{namespace}/views:
    get:
      operationId: listViews
      summary: List Views
      description: List all views in a namespace.
      tags:
      - Views
      parameters:
      - $ref: '#/components/parameters/NamespaceParam'
      responses:
        '200':
          description: List of views
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ListTablesResponse'
    post:
      operationId: createView
      summary: Create View
      description: Create a new Iceberg view in the namespace.
      tags:
      - Views
      parameters:
      - $ref: '#/components/parameters/NamespaceParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateViewRequest'
      responses:
        '200':
          description: View created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LoadViewResult'
  /v1/namespaces/{namespace}/views/{view}:
    get:
      operationId: loadView
      summary: Load View
      description: Load a view from the catalog.
      tags:
      - Views
      parameters:
      - $ref: '#/components/parameters/NamespaceParam'
      - name: view
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: View metadata
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LoadViewResult'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: dropView
      summary: Drop View
      description: Drop a view from the catalog.
      tags:
      - Views
      parameters:
      - $ref: '#/components/parameters/NamespaceParam'
      - name: view
        in: path
        required: true
        schema:
          type: string
      responses:
        '204':
          description: View dropped
components:
  schemas:
    LoadViewResult:
      type: object
      properties:
        metadata-location:
          type: string
        metadata:
          type: object
    IcebergErrorResponse:
      type: object
      properties:
        error:
          type: object
          properties:
            message:
              type: string
            type:
              type: string
            code:
              type: integer
    ListTablesResponse:
      type: object
      properties:
        identifiers:
          type: array
          items:
            $ref: '#/components/schemas/TableIdentifier'
        next-page-token:
          type: string
    StructField:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        type:
          type: string
        required:
          type: boolean
        doc:
          type: string
    CreateViewRequest:
      type: object
      required:
      - name
      - schema
      - view-version
      properties:
        name:
          type: string
        location:
          type: string
        schema:
          $ref: '#/components/schemas/Schema'
        view-version:
          type: object
        properties:
          type: object
          additionalProperties:
            type: string
    TableIdentifier:
      type: object
      properties:
        namespace:
          type: array
          items:
            type: string
        name:
          type: string
    Schema:
      type: object
      properties:
        schema-id:
          type: integer
        fields:
          type: array
          items:
            $ref: '#/components/schemas/StructField'
  responses:
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/IcebergErrorResponse'
  parameters:
    NamespaceParam:
      name: namespace
      in: path
      required: true
      description: Namespace identifier (can be multi-level with ASCII unit separator)
      schema:
        type: string
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
    OAuth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: /v1/oauth/tokens
          scopes:
            catalog: Access catalog operations
externalDocs:
  description: Apache Iceberg REST Catalog Specification
  url: https://iceberg.apache.org/rest-catalog-spec/