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OpenAPI Specification

openapi: 3.2.0
info:
  title: BTS Open Data SODA Metadata Resource API
  version: '2.1'
  description: 'The Bureau of Transportation Statistics (BTS) publishes its open data

    catalog through a Socrata-hosted portal at data.bts.gov. All datasets

    are accessible via the Socrata Open Data API (SODA) 2.1, with each

    dataset addressable by its four-by-four identifier (e.g., `abcd-1234`).


    Authentication is optional but recommended via the `X-App-Token`

    header to receive higher rate limits.

    '
  contact:
    name: Bureau of Transportation Statistics
    url: https://data.bts.gov/
  license:
    name: U.S. Government Work
    url: https://www.usa.gov/government-works
servers:
- url: https://data.bts.gov
  description: BTS Socrata Open Data portal
security:
- {}
- appToken: []
tags:
- name: Resource
  description: Dataset resource queries via SoQL
paths:
  /resource/{datasetId}.json:
    get:
      tags:
      - Resource
      summary: Query a BTS dataset using SoQL
      description: 'Retrieve rows from a BTS dataset. Supports SoQL (Socrata Query

        Language) parameters for filtering, projection, ordering, and

        pagination. Replace `{datasetId}` with the dataset''s four-by-four

        identifier as listed at https://data.bts.gov/browse.

        '
      operationId: queryDataset
      parameters:
      - name: datasetId
        in: path
        required: true
        description: Four-by-four dataset identifier (e.g., `gxum-mjt3`).
        schema:
          type: string
          pattern: ^[a-z0-9]{4}-[a-z0-9]{4}$
      - name: $select
        in: query
        description: Comma-separated list of columns to return.
        schema:
          type: string
      - name: $where
        in: query
        description: SoQL filter expression.
        schema:
          type: string
      - name: $order
        in: query
        description: Sort order, e.g. `column ASC`.
        schema:
          type: string
      - name: $group
        in: query
        schema:
          type: string
      - name: $having
        in: query
        schema:
          type: string
      - name: $limit
        in: query
        description: Maximum number of rows to return (default 1000, max 50000).
        schema:
          type: integer
          default: 1000
          maximum: 50000
      - name: $offset
        in: query
        schema:
          type: integer
          default: 0
      - name: $q
        in: query
        description: Full-text search across the dataset.
        schema:
          type: string
      - name: $$app_token
        in: query
        description: Optional app token as a query parameter.
        schema:
          type: string
      responses:
        '200':
          description: Array of row objects with dataset-specific keys.
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  additionalProperties: true
        '400':
          description: Invalid SoQL expression.
        '404':
          description: Dataset not found.
        '429':
          description: Rate limit exceeded.
  /resource/{datasetId}.csv:
    get:
      tags:
      - Resource
      summary: Query a BTS dataset as CSV
      operationId: queryDatasetCsv
      parameters:
      - name: datasetId
        in: path
        required: true
        schema:
          type: string
      - name: $select
        in: query
        schema:
          type: string
      - name: $where
        in: query
        schema:
          type: string
      - name: $limit
        in: query
        schema:
          type: integer
      - name: $offset
        in: query
        schema:
          type: integer
      responses:
        '200':
          description: CSV result set
          content:
            text/csv:
              schema:
                type: string
  /resource/{datasetId}.geojson:
    get:
      tags:
      - Resource
      summary: Query a BTS geospatial dataset as GeoJSON
      operationId: queryDatasetGeoJson
      parameters:
      - name: datasetId
        in: path
        required: true
        schema:
          type: string
      - name: $where
        in: query
        schema:
          type: string
      - name: $limit
        in: query
        schema:
          type: integer
      responses:
        '200':
          description: GeoJSON FeatureCollection
          content:
            application/vnd.geo+json:
              schema:
                type: object
components:
  securitySchemes:
    appToken:
      type: apiKey
      in: header
      name: X-App-Token
      description: Socrata application token from data.bts.gov developer registration.