openapi: 3.1.0
info:
  title: SPARQL 1.1 Protocol Query Sparql Graph API
  description: 'SPARQL 1.1 Protocol is a W3C Recommendation that defines how to convey

    SPARQL queries and updates between clients and SPARQL processors over

    HTTP. It defines two operations — `query` and `update` — each of which

    can be invoked over HTTP with several encodings of the SPARQL string.


    This OpenAPI description models only the protocol operations explicitly

    defined in https://www.w3.org/TR/sparql11-protocol/. It does not model

    any vendor-specific authentication scheme; the spec leaves authentication

    to implementations ("implementations may choose to use HTTP authentication

    mechanisms or other implementation-defined mechanisms"). The example

    server is the public DBpedia SPARQL endpoint which accepts query

    requests without authentication.


    The Graph Store HTTP Protocol (a sibling specification at

    https://www.w3.org/TR/sparql11-http-rdf-update/) is not modeled here.

    '
  version: '1.1'
  contact:
    name: W3C SPARQL Working Group
    url: https://www.w3.org/TR/sparql11-protocol/
  license:
    name: W3C Document License
    url: https://www.w3.org/Consortium/Legal/2015/doc-license
servers:
- url: https://dbpedia.org
  description: Public DBpedia SPARQL endpoint (no auth)
- url: https://{host}
  description: Generic SPARQL 1.1 endpoint
  variables:
    host:
      default: example.org
      description: Hostname of a SPARQL 1.1 endpoint
tags:
- name: Sparql Graph
paths:
  /sparql-graph:
    get:
      operationId: graphStoreGet
      summary: SPARQL Retrieve Graph (Graph Store Protocol)
      description: Retrieves an RDF graph from the SPARQL Graph Store using HTTP GET. Part of the SPARQL 1.1 Graph Store HTTP Protocol for managing named graphs and the default graph.
      parameters:
      - name: graph
        in: query
        description: URI of the named graph to retrieve. If omitted, the default graph is returned.
        schema:
          type: string
          format: uri
      - name: default
        in: query
        description: Set to empty string to request the default graph
        schema:
          type: string
      - name: Accept
        in: header
        schema:
          type: string
          enum:
          - text/turtle
          - application/rdf+xml
          - application/ld+json
          - application/n-triples
          - application/n-quads
          default: text/turtle
      responses:
        '200':
          description: Graph returned successfully
          content:
            text/turtle:
              schema:
                type: string
            application/rdf+xml:
              schema:
                type: string
            application/ld+json:
              schema:
                type: object
        '404':
          description: Named graph not found
      tags:
      - Sparql Graph
    put:
      operationId: graphStorePut
      summary: SPARQL Replace Graph (Graph Store Protocol)
      description: Replaces the contents of a graph with the provided RDF data. Creates the graph if it does not exist.
      parameters:
      - name: graph
        in: query
        description: URI of the named graph to replace
        schema:
          type: string
          format: uri
      - name: default
        in: query
        description: Set to empty string to target the default graph
        schema:
          type: string
      requestBody:
        required: true
        content:
          text/turtle:
            schema:
              type: string
          application/rdf+xml:
            schema:
              type: string
          application/ld+json:
            schema:
              type: object
      responses:
        '200':
          description: Graph replaced successfully
        '201':
          description: Graph created successfully
        '204':
          description: Graph replaced successfully (no content)
        '400':
          description: Malformed RDF payload
      tags:
      - Sparql Graph
    post:
      operationId: graphStorePost
      summary: SPARQL Merge into Graph (Graph Store Protocol)
      description: Merges the provided RDF data into the specified graph, adding triples without removing existing ones.
      parameters:
      - name: graph
        in: query
        description: URI of the named graph to merge into
        schema:
          type: string
          format: uri
      - name: default
        in: query
        description: Set to empty string to target the default graph
        schema:
          type: string
      requestBody:
        required: true
        content:
          text/turtle:
            schema:
              type: string
          application/rdf+xml:
            schema:
              type: string
          application/ld+json:
            schema:
              type: object
      responses:
        '200':
          description: Triples merged successfully
        '204':
          description: Triples merged successfully (no content)
        '400':
          description: Malformed RDF payload
      tags:
      - Sparql Graph
    delete:
      operationId: graphStoreDelete
      summary: SPARQL Delete Graph (Graph Store Protocol)
      description: Deletes a named graph or clears the default graph.
      parameters:
      - name: graph
        in: query
        description: URI of the named graph to delete
        schema:
          type: string
          format: uri
      - name: default
        in: query
        description: Set to empty string to clear the default graph
        schema:
          type: string
      responses:
        '200':
          description: Graph deleted successfully
        '204':
          description: Graph deleted successfully (no content)
        '404':
          description: Named graph not found
      tags:
      - Sparql Graph