openapi: 3.0.3
info:
  title: Teradata Query Service API
  description: >-
    REST API for executing SQL queries against Teradata Vantage systems.
    Provides HTTP-based access to run queries, retrieve results, and manage
    sessions for application integration.
  version: '1.0'
  contact:
    name: Teradata
    url: https://www.teradata.com
  x-generated-from: documentation
  x-last-validated: '2026-04-18'
servers:
  - url: https://vantage.teradata.com/api/query/v1
    description: Teradata Query Service endpoint
security:
  - BasicAuth: []
paths:
  /systems:
    get:
      operationId: listQuerySystems
      summary: Teradata List Query Systems
      description: Retrieve available Vantage systems for query execution.
      tags:
        - Systems
      responses:
        '200':
          description: List of systems retrieved successfully.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/QuerySystem'
              examples:
                ListQuerySystems200Example:
                  summary: Default listQuerySystems 200 response
                  x-microcks-default: true
                  value:
                    - name: vantage-prod
                      host: vantage01.example.com
                      port: 1025
                      status: available
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /sessions:
    post:
      operationId: createSession
      summary: Teradata Create Session
      description: Create a new query session on a Vantage system.
      tags:
        - Sessions
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SessionRequest'
            examples:
              CreateSessionRequestExample:
                summary: Default createSession request
                x-microcks-default: true
                value:
                  system: vantage-prod
                  username: app_user
                  database: analytics_db
      responses:
        '201':
          description: Session created successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Session'
              examples:
                CreateSession201Example:
                  summary: Default createSession 201 response
                  x-microcks-default: true
                  value:
                    sessionId: sess-a1b2c3d4
                    system: vantage-prod
                    database: analytics_db
                    status: active
                    createdAt: '2026-04-18T10:00:00Z'
        '400':
          description: Invalid session request.
        '401':
          description: Authentication failed.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /sessions/{sessionId}:
    get:
      operationId: getSession
      summary: Teradata Get Session
      description: Retrieve details about a specific query session.
      tags:
        - Sessions
      parameters:
        - name: sessionId
          in: path
          required: true
          description: Session identifier.
          schema:
            type: string
          example: sess-a1b2c3d4
      responses:
        '200':
          description: Session details retrieved successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Session'
        '404':
          description: Session not found.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    delete:
      operationId: deleteSession
      summary: Teradata Delete Session
      description: Close and delete a query session.
      tags:
        - Sessions
      parameters:
        - name: sessionId
          in: path
          required: true
          description: Session identifier.
          schema:
            type: string
          example: sess-a1b2c3d4
      responses:
        '204':
          description: Session deleted successfully.
        '404':
          description: Session not found.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /queries:
    post:
      operationId: executeQuery
      summary: Teradata Execute Query
      description: Execute a SQL query against a Vantage system.
      tags:
        - Queries
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/QueryRequest'
            examples:
              ExecuteQueryRequestExample:
                summary: Default executeQuery request
                x-microcks-default: true
                value:
                  sessionId: sess-a1b2c3d4
                  query: SELECT TOP 10 * FROM analytics_db.customer_events
                  format: json
                  maxRows: 1000
      responses:
        '200':
          description: Query executed successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/QueryResult'
              examples:
                ExecuteQuery200Example:
                  summary: Default executeQuery 200 response
                  x-microcks-default: true
                  value:
                    queryId: qry-e5f6g7h8
                    status: completed
                    rowCount: 10
                    columns:
                      - name: customer_id
                        type: INTEGER
                      - name: event_type
                        type: VARCHAR
                      - name: event_time
                        type: TIMESTAMP
                    rows:
                      - - 100001
                        - purchase
                        - '2026-04-18T09:30:00Z'
        '400':
          description: Invalid query syntax.
        '401':
          description: Authentication failed.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /queries/{queryId}:
    get:
      operationId: getQueryStatus
      summary: Teradata Get Query Status
      description: Retrieve the status and results of a previously submitted query.
      tags:
        - Queries
      parameters:
        - name: queryId
          in: path
          required: true
          description: Query identifier.
          schema:
            type: string
          example: qry-e5f6g7h8
      responses:
        '200':
          description: Query status retrieved successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/QueryResult'
        '404':
          description: Query not found.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    delete:
      operationId: cancelQuery
      summary: Teradata Cancel Query
      description: Cancel a running query.
      tags:
        - Queries
      parameters:
        - name: queryId
          in: path
          required: true
          description: Query identifier.
          schema:
            type: string
          example: qry-e5f6g7h8
      responses:
        '204':
          description: Query cancelled successfully.
        '404':
          description: Query not found.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  securitySchemes:
    BasicAuth:
      type: http
      scheme: basic
      description: HTTP Basic authentication with Vantage credentials.
  schemas:
    QuerySystem:
      type: object
      description: A Vantage system available for queries.
      properties:
        name:
          type: string
          description: System name.
          example: vantage-prod
        host:
          type: string
          description: System hostname.
          example: vantage01.example.com
        port:
          type: integer
          description: Connection port.
          example: 1025
        status:
          type: string
          description: System availability status.
          enum:
            - available
            - unavailable
            - maintenance
          example: available
    SessionRequest:
      type: object
      description: Request to create a query session.
      properties:
        system:
          type: string
          description: Target system name.
          example: vantage-prod
        username:
          type: string
          description: Database username.
          example: app_user
        database:
          type: string
          description: Default database.
          example: analytics_db
      required:
        - system
        - username
    Session:
      type: object
      description: A query session.
      properties:
        sessionId:
          type: string
          description: Unique session identifier.
          example: sess-a1b2c3d4
        system:
          type: string
          description: Connected system name.
          example: vantage-prod
        database:
          type: string
          description: Default database.
          example: analytics_db
        status:
          type: string
          description: Session status.
          enum:
            - active
            - idle
            - closed
          example: active
        createdAt:
          type: string
          format: date-time
          description: Session creation time.
          example: '2026-04-18T10:00:00Z'
    QueryRequest:
      type: object
      description: Request to execute a SQL query.
      properties:
        sessionId:
          type: string
          description: Session identifier for query execution.
          example: sess-a1b2c3d4
        query:
          type: string
          description: SQL query to execute.
          example: SELECT TOP 10 * FROM analytics_db.customer_events
        format:
          type: string
          description: Result format.
          enum:
            - json
            - csv
          example: json
        maxRows:
          type: integer
          description: Maximum number of rows to return.
          example: 1000
      required:
        - sessionId
        - query
    QueryResult:
      type: object
      description: Query execution result.
      properties:
        queryId:
          type: string
          description: Unique query identifier.
          example: qry-e5f6g7h8
        status:
          type: string
          description: Query execution status.
          enum:
            - running
            - completed
            - failed
            - cancelled
          example: completed
        rowCount:
          type: integer
          description: Number of rows returned.
          example: 10
        columns:
          type: array
          items:
            type: object
            properties:
              name:
                type: string
                description: Column name.
              type:
                type: string
                description: Column data type.
          description: Column metadata.
        rows:
          type: array
          items:
            type: array
            items: {}
          description: Result rows as arrays of values.
        errorMessage:
          type: string
          description: Error message if query failed.