Saildrone Mission API

openapi: 3.1.0
info:
  title: Saildrone Mission API
  description: >
    Saildrone Public Mission API (BETA). Provides authenticated access to Saildrone
    mission telemetry and time-series data collected by Saildrone's fleet of wind/solar
    autonomous surface vehicles (USVs). Surfaces include health, key/secret
    authentication, drone access discovery, and per-mission time-series retrieval
    across vehicle, atmospheric, oceanographic, and biogeochemical datasets.
    Endpoints, parameters, and authentication flow are reconstructed from the public
    Swagger interface at developer-mission.saildrone.com/api-docs and confirmed open
    source clients (e.g. nwfsc-fram/SaildroneTS).
  version: v1
  contact:
    name: Saildrone Data Solutions
    url: https://www.saildrone.com/contact
  license:
    name: Saildrone API Terms
    url: https://www.saildrone.com/terms

servers:
  - url: https://developer-mission.saildrone.com
    description: Saildrone Public Mission API (BETA)

security:
  - BearerAuth: []

tags:
  - name: Health
    description: Service health check
  - name: Authentication
    description: Key/secret exchange for bearer tokens and drone access discovery
  - name: Time Series
    description: Mission time-series data across vehicle, atmospheric, oceanographic, and biogeochemical datasets

paths:
  /health:
    get:
      summary: Get Service Health
      description: Returns the health status of the Saildrone Mission API. Used by clients to verify connectivity before authenticating.
      operationId: getHealth
      tags:
        - Health
      security: []
      responses:
        '200':
          description: Health check response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HealthResponse'

  /v1/auth:
    post:
      summary: Authenticate With Key And Secret
      description: Exchange a Saildrone-issued API key and secret for a bearer token used on subsequent calls. Tokens are short-lived; clients should re-authenticate before expiry.
      operationId: authenticate
      tags:
        - Authentication
      security: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AuthRequest'
      responses:
        '200':
          description: Bearer token issued
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AuthResponse'
        '401':
          description: Invalid key or secret
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'

  /v1/auth/access:
    get:
      summary: List Drone Access
      description: List drones (missions) the authenticated key has access to, including each drone's allowed start/end date range and which datasets are exposed (vehicle, atmospheric, oceanographic, biogeochemical).
      operationId: listAccess
      tags:
        - Authentication
      responses:
        '200':
          description: List of authorized drones and time ranges
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccessResponse'
        '401':
          description: Missing or expired bearer token

  /v1/timeseries/{mission}:
    get:
      summary: Get Mission Time Series
      description: Retrieve time-series records for a specific drone/mission and dataset over a given window. Supports interval thinning, limits, and ascending/descending order.
      operationId: getMissionTimeSeries
      tags:
        - Time Series
      parameters:
        - name: mission
          in: path
          required: true
          description: Drone / mission identifier (e.g. 1023, 1039, 1040).
          schema:
            type: integer
            example: 1039
        - name: data_set
          in: query
          required: true
          description: Which Saildrone dataset to return for this mission.
          schema:
            type: string
            enum: [vehicle, atmospheric, oceanographic, biogeochemical]
            example: oceanographic
        - name: start_date
          in: query
          required: true
          description: ISO-8601 start date/time (inclusive).
          schema:
            type: string
            format: date-time
            example: '2024-01-01T00:00:00Z'
        - name: end_date
          in: query
          required: true
          description: ISO-8601 end date/time (inclusive).
          schema:
            type: string
            format: date-time
            example: '2024-01-02T00:00:00Z'
        - name: interval
          in: query
          required: false
          description: Sampling interval in minutes between returned points (1 = no thinning).
          schema:
            type: integer
            default: 1
            example: 1
        - name: limit
          in: query
          required: false
          description: Maximum records per response page.
          schema:
            type: integer
            default: 1000
            example: 1000
        - name: order_by
          in: query
          required: false
          description: Sort order for gps_time.
          schema:
            type: string
            enum: [asc, desc]
            default: asc
      responses:
        '200':
          description: Time-series payload with metadata and data array
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TimeSeriesResponse'
        '401':
          description: Missing or expired bearer token
        '403':
          description: Mission not in this key's access list
        '404':
          description: Mission or dataset not found

components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Bearer token obtained from POST /v1/auth (sent as `authorization: <token>`).

  schemas:
    HealthResponse:
      type: object
      properties:
        success:
          type: boolean
        status:
          type: string
          example: ok

    AuthRequest:
      type: object
      required: [key, secret]
      properties:
        key:
          type: string
          description: Saildrone-issued API key.
        secret:
          type: string
          description: Saildrone-issued API secret.

    AuthResponse:
      type: object
      properties:
        success:
          type: boolean
        token:
          type: string
          description: Bearer token to use in the `authorization` header on subsequent calls.
        expires_at:
          type: string
          format: date-time

    AccessEntry:
      type: object
      properties:
        drone_id:
          type: integer
          example: 1039
        start_date:
          type: string
          format: date-time
        end_date:
          type: string
          format: date-time
        data_set:
          type: array
          items:
            type: string
            enum: [vehicle, atmospheric, oceanographic, biogeochemical]

    AccessResponse:
      type: object
      properties:
        success:
          type: boolean
        data:
          type: object
          properties:
            access:
              type: array
              items:
                $ref: '#/components/schemas/AccessEntry'

    TimeSeriesMeta:
      type: object
      description: Per-variable metadata (units, long_name, valid range, etc.) for the returned dataset.
      additionalProperties:
        type: object
        properties:
          units:
            type: string
          long_name:
            type: string
          standard_name:
            type: string
          valid_min:
            type: number
          valid_max:
            type: number

    TimeSeriesRecord:
      type: object
      description: A single time-stamped sample. Fields vary by dataset (vehicle, atmospheric, oceanographic, biogeochemical) but always include gps_time, latitude, longitude.
      properties:
        gps_time:
          type: number
          description: Unix epoch (seconds) of the sample.
        latitude:
          type: number
          format: double
        longitude:
          type: number
          format: double
        TEMP_AIR_MEAN:
          type: number
          description: Air temperature mean (atmospheric dataset).
        WIND_FROM_MEAN:
          type: number
          description: Wind direction mean, degrees (atmospheric dataset).
        WIND_SPEED_MEAN:
          type: number
          description: Wind speed mean, m/s (atmospheric dataset).
        TEMP_SBE37_MEAN:
          type: number
          description: Sea surface temperature mean, deg C (oceanographic dataset).
        SAL_SBE37_MEAN:
          type: number
          description: Sea surface salinity mean (oceanographic dataset).
        O2_CONC_SBE37_MEAN:
          type: number
          description: Dissolved oxygen concentration (biogeochemical dataset).
        CHLOR_RBR_MEAN:
          type: number
          description: Chlorophyll-a, mg/m^3 (biogeochemical dataset).
        CO2_DRY_PPM:
          type: number
          description: Atmospheric CO2 mole fraction, ppm (biogeochemical dataset).
        SOG:
          type: number
          description: Speed over ground, knots (vehicle dataset).
        COG:
          type: number
          description: Course over ground, degrees (vehicle dataset).
        HDG:
          type: number
          description: Heading, degrees (vehicle dataset).

    TimeSeriesResponse:
      type: object
      properties:
        success:
          type: boolean
        meta:
          $ref: '#/components/schemas/TimeSeriesMeta'
        data:
          type: array
          items:
            $ref: '#/components/schemas/TimeSeriesRecord'

    ErrorResponse:
      type: object
      properties:
        success:
          type: boolean
          example: false
        error:
          type: string
        code:
          type: integer