openapi: 3.1.0
info:
  title: Amazon Neptune Neptune Analytics ?Action=AddTagsToResource ?Action=AddTagsToResource Property Graph Stream API
  description: Neptune Analytics is a memory-optimized graph database engine for analytics, providing optimized graph analytic algorithms, low-latency queries, and vector search capabilities within graph traversals. This API provides management operations for Neptune Analytics graph resources including creating, managing, and querying graph databases optimized for analytical workloads.
  version: '2023-11-29'
  contact:
    name: Amazon Web Services
    url: https://docs.aws.amazon.com/neptune-analytics/latest/userguide/what-is-neptune-analytics.html
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: https://neptune-graph.{region}.amazonaws.com
  description: Neptune Analytics control plane regional endpoint
  variables:
    region:
      default: us-east-1
      description: AWS region
security:
- aws_sigv4: []
tags:
- name: Property Graph Stream
  description: Change data capture for property graph (Gremlin/openCypher) data
paths:
  /propertygraph/stream:
    get:
      operationId: getPropertyGraphStream
      summary: Amazon Neptune Get Property Graph Change Stream Records
      description: Gets a stream of change-log entries for property graph (Gremlin/openCypher) data. Each entry records a mutation (ADD or REMOVE) made to vertices, edges, or their properties. The response format is PG_JSON. This is the recommended endpoint for property graph streams, replacing the deprecated /gremlin/stream endpoint.
      tags:
      - Property Graph Stream
      parameters:
      - name: limit
        in: query
        description: Maximum number of records to return (1-100,000). Default is 10. The 10 MB response size limit takes precedence over this value.
        schema:
          type: integer
          minimum: 1
          maximum: 100000
          default: 10
      - name: iteratorType
        in: query
        description: Determines the starting point for reading the stream.
        schema:
          type: string
          enum:
          - AT_SEQUENCE_NUMBER
          - AFTER_SEQUENCE_NUMBER
          - TRIM_HORIZON
          - LATEST
          default: AT_SEQUENCE_NUMBER
      - name: commitNum
        in: query
        description: The commit number to start reading from. Required when iteratorType is AT_SEQUENCE_NUMBER or AFTER_SEQUENCE_NUMBER.
        schema:
          type: integer
      - name: opNum
        in: query
        description: The operation sequence number within the specified commit. Default is 1.
        schema:
          type: integer
          default: 1
      - name: Accept-Encoding
        in: header
        description: Set to 'gzip' to receive compressed responses.
        schema:
          type: string
          enum:
          - gzip
      responses:
        '200':
          description: Stream records retrieved successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PropertyGraphStreamResponse'
              examples:
                getPropertyGraphStream200Example:
                  summary: Default getPropertyGraphStream 200 response
                  x-microcks-default: true
                  value:
                    lastEventId: {}
                    lastTrxTimestamp: 1
                    format: PG_JSON
                    records:
                    - {}
                    totalRecords: 1
        '400':
          description: Bad request - invalid parameters.
        '500':
          description: Internal server error.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /pg/stream:
    get:
      operationId: getPropertyGraphStreamAlias
      summary: Amazon Neptune Get Property Graph Change Stream Records (alias)
      description: Alias for /propertygraph/stream. Gets a stream of change-log entries for property graph data. Supports the same parameters and returns the same response format.
      tags:
      - Property Graph Stream
      parameters:
      - name: limit
        in: query
        schema:
          type: integer
          minimum: 1
          maximum: 100000
          default: 10
      - name: iteratorType
        in: query
        schema:
          type: string
          enum:
          - AT_SEQUENCE_NUMBER
          - AFTER_SEQUENCE_NUMBER
          - TRIM_HORIZON
          - LATEST
      - name: commitNum
        in: query
        schema:
          type: integer
      - name: opNum
        in: query
        schema:
          type: integer
          default: 1
      responses:
        '200':
          description: Stream records retrieved successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PropertyGraphStreamResponse'
              examples:
                getPropertyGraphStreamAlias200Example:
                  summary: Default getPropertyGraphStreamAlias 200 response
                  x-microcks-default: true
                  value:
                    lastEventId: {}
                    lastTrxTimestamp: 1
                    format: PG_JSON
                    records:
                    - {}
                    totalRecords: 1
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    PropertyGraphStreamResponse:
      type: object
      properties:
        lastEventId:
          $ref: '#/components/schemas/StreamEventId'
        lastTrxTimestamp:
          type: integer
          description: Unix epoch timestamp in milliseconds of the last commit.
        format:
          type: string
          enum:
          - PG_JSON
          description: The serialization format (always PG_JSON for property graph).
        records:
          type: array
          description: The array of change-log stream records.
          items:
            $ref: '#/components/schemas/PropertyGraphStreamRecord'
        totalRecords:
          type: integer
          description: Total number of records in the response.
    PropertyGraphStreamRecord:
      type: object
      properties:
        commitTimestamp:
          type: integer
          description: Unix epoch timestamp in milliseconds of the transaction commit.
        eventId:
          $ref: '#/components/schemas/StreamEventId'
        data:
          $ref: '#/components/schemas/PropertyGraphData'
        op:
          type: string
          enum:
          - ADD
          - REMOVE
          description: The operation type (ADD or REMOVE).
        isLastOp:
          type: boolean
          description: True only if this is the last operation in the transaction.
    StreamEventId:
      type: object
      description: A sequence identifier for a stream event.
      properties:
        commitNum:
          type: integer
          description: The commit (transaction) number.
        opNum:
          type: integer
          description: The operation number within the commit.
    PropertyGraphData:
      type: object
      description: The serialized property graph change data. The type field indicates the element kind.
      properties:
        id:
          type: string
          description: The unique identifier of the element.
        type:
          type: string
          description: 'The element type: v (vertex), vl (vertex label), vp (vertex property), e (edge), ep (edge property).'
          enum:
          - v
          - vl
          - vp
          - e
          - ep
        key:
          type: string
          description: The property key name.
        value:
          type: object
          description: The property value with its data type.
          properties:
            value:
              description: The actual property value.
            dataType:
              type: string
              description: The data type (String, Integer, Double, etc.).
        from:
          type: string
          description: Source vertex ID (for edges only).
        to:
          type: string
          description: Target vertex ID (for edges only).
  securitySchemes:
    aws_sigv4:
      type: apiKey
      name: Authorization
      in: header
      description: AWS Signature Version 4 authentication