openapi: 3.1.0
info:
  title: Fastly Account ACL Historical Stats API
  description: The Fastly Account API provides endpoints for managing customer accounts, users, and identity and access management (IAM) resources. Developers can programmatically manage user invitations, roles, permissions, and service groups to control access to Fastly resources. The API supports retrieving and updating customer information, managing user profiles, and configuring organizational settings for enterprise accounts.
  version: '1.0'
  contact:
    name: Fastly Support
    url: https://support.fastly.com
  termsOfService: https://www.fastly.com/terms
servers:
- url: https://api.fastly.com
  description: Fastly API Production Server
security:
- apiKeyAuth: []
tags:
- name: Historical Stats
  description: Historical statistics endpoints providing aggregated analytics data for Fastly services over configurable time ranges.
paths:
  /stats:
    get:
      operationId: getHistoricalStats
      summary: Get historical stats
      description: Retrieves historical statistics for all Fastly services associated with the account. Data with day resolution is bucketed based on UTC days and becomes available around 2 AM the following day. Hour resolution becomes available approximately 15 minutes after the end of each hour. Minute data usually becomes available two minutes after the end of the minute. Minutely data older than 35 days and hourly data older than 375 days are not available.
      tags:
      - Historical Stats
      servers:
      - url: https://api.fastly.com
        description: Fastly API Production Server
      parameters:
      - name: from
        in: query
        description: The start date/time for the query in ISO 8601 or Unix timestamp format.
        schema:
          type: string
      - name: to
        in: query
        description: The end date/time for the query in ISO 8601 or Unix timestamp format.
        schema:
          type: string
      - name: by
        in: query
        description: The duration of each time bucket in the response.
        schema:
          type: string
          enum:
          - minute
          - hour
          - day
      - name: region
        in: query
        description: Filter results by Fastly POP region.
        schema:
          type: string
      responses:
        '200':
          description: Successfully retrieved historical statistics.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HistoricalStatsResponse'
        '401':
          description: Unauthorized. The API token is missing or invalid.
  /stats/service/{service_id}:
    get:
      operationId: getHistoricalStatsByService
      summary: Get historical stats for a service
      description: Retrieves historical statistics for a specific Fastly service over the specified time range and resolution.
      tags:
      - Historical Stats
      servers:
      - url: https://api.fastly.com
        description: Fastly API Production Server
      parameters:
      - $ref: '#/components/parameters/serviceId'
      - name: from
        in: query
        description: The start date/time for the query.
        schema:
          type: string
      - name: to
        in: query
        description: The end date/time for the query.
        schema:
          type: string
      - name: by
        in: query
        description: The duration of each time bucket in the response.
        schema:
          type: string
          enum:
          - minute
          - hour
          - day
      - name: region
        in: query
        description: Filter results by Fastly POP region.
        schema:
          type: string
      responses:
        '200':
          description: Successfully retrieved historical statistics for the service.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HistoricalStatsResponse'
        '401':
          description: Unauthorized. The API token is missing or invalid.
        '404':
          description: Service not found.
  /stats/field/{field}:
    get:
      operationId: getHistoricalStatsByField
      summary: Get historical stats for a specific field
      description: Retrieves a single historical statistics field for all services associated with the account.
      tags:
      - Historical Stats
      servers:
      - url: https://api.fastly.com
        description: Fastly API Production Server
      parameters:
      - name: field
        in: path
        required: true
        description: The stats field to retrieve.
        schema:
          type: string
      - name: from
        in: query
        description: The start date/time for the query.
        schema:
          type: string
      - name: to
        in: query
        description: The end date/time for the query.
        schema:
          type: string
      - name: by
        in: query
        description: The duration of each time bucket in the response.
        schema:
          type: string
          enum:
          - minute
          - hour
          - day
      - name: region
        in: query
        description: Filter results by Fastly POP region.
        schema:
          type: string
      responses:
        '200':
          description: Successfully retrieved historical statistics for the field.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HistoricalStatsResponse'
        '401':
          description: Unauthorized. The API token is missing or invalid.
components:
  parameters:
    serviceId:
      name: service_id
      in: path
      required: true
      description: The alphanumeric string identifying the Fastly service.
      schema:
        type: string
  schemas:
    HistoricalStatsResponse:
      type: object
      description: A response containing historical statistics data for the requested time range and resolution.
      properties:
        status:
          type: string
          description: The status of the request.
        meta:
          type: object
          description: Metadata about the query including the time range and filters.
          properties:
            to:
              type: string
              description: The end time of the query.
            from:
              type: string
              description: The start time of the query.
            by:
              type: string
              description: The time bucket duration used.
            region:
              type: string
              description: The region filter applied, if any.
        data:
          type: array
          description: A list of data points with measurements for each time bucket.
          items:
            type: object
            additionalProperties: true
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: Fastly-Key
      description: API token used to authenticate requests to the Fastly API.
externalDocs:
  description: Fastly Account API Documentation
  url: https://www.fastly.com/documentation/reference/api/account/