Franklin Whole Home Warnings and Events API

openapi: 3.2.0
info:
  title: FranklinWH Warnings and Events API
  version: '1.0'
  summary: Partner API for the FranklinWH (Franklin Whole Home) residential energy storage platform.
  description: 'Machine-readable rendering of the FranklinWH partner API as published by FranklinWH''s own API portal at https://api.franklinwh.com/ (portal title `FWH-API-Service`, author `FWH`, version 1.0). The portal ships its complete operation catalogue - paths, HTTP methods, parameter names, locations, types, requirement flags and value notes - as a static, publicly retrievable JavaScript module; this OpenAPI document is a faithful format conversion of that catalogue. Nothing has been added that the portal does not publish. Response payload schemas are NOT published by the portal, so only the observed response envelope is modelled here.


    The API covers site and device inventory, telemetry and energy data, warnings and backup events, time-of-use profiles, smart-circuit and grid-event control, aPower battery start/stop, device grouping and an operation audit log, plus a Sunrun-specific namespace (`/api-sunrun/`).


    Authentication: POST /api-common/tokenizer with a `cp` / `ck` credential pair returns a token that is sent on every other operation in the `Authorization` header.


    Base URL: the only base URL FranklinWH publishes publicly is the free test environment, https://test-api.franklinwh.com. The production base URL is issued to authorised partners during onboarding and is not published.'
  contact:
    name: FranklinWH Support
    email: service@franklinwh.com
    url: https://www.franklinwh.com/support/contact/
  x-provenance:
    method: derived
    source: https://api.franklinwh.com/js/apiList-eQeWKe2I.js
    source_portal: https://api.franklinwh.com/
    derived: '2026-08-16'
    note: Converted from the FranklinWH API portal's own published operation catalogue. Operations, parameters and request examples are verbatim from that catalogue; no operation, parameter or schema was invented.
servers:
- url: https://test-api.franklinwh.com
  description: Free test environment - the only base URL FranklinWH publishes publicly (portal `host` / `basePath`).
security:
- AuthorizationToken: []
tags:
- name: Warnings and Events
  description: Historical device warnings and backup (outage) events.
paths:
  /api-common/queryDeviceHistoricalWarning:
    get:
      tags:
      - Warnings and Events
      summary: Query Historical Warning
      operationId: queryDeviceHistoricalWarning
      description: Query historical warning data within a defined period, the time span should not exceed 1 month
      parameters:
      - name: deviceId
        in: query
        required: true
        schema:
          type: string
        description: Device id
      - name: queryStartTime
        in: query
        required: true
        schema:
          type: string
        description: Query start time. Device time
      - name: queryEndTime
        in: query
        required: true
        schema:
          type: string
        description: Query end time. Device time
      responses:
        '200':
          description: Envelope response. Non-zero `code` values (401 wrong token, 403 missing token or token param) are returned inside the envelope with HTTP 200.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiEnvelope'
        '404':
          description: Unknown path.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NotFoundError'
  /api-common/queryBackupEvents:
    get:
      tags:
      - Warnings and Events
      summary: Query Backup Events
      operationId: queryBackupEvents
      description: Query backup events data within a defined period, the time span should not exceed 1 month
      parameters:
      - name: deviceId
        in: query
        required: true
        schema:
          type: string
        description: Device id
      - name: queryStartTime
        in: query
        required: true
        schema:
          type: string
        description: Query the start time of the start time. Device time
      - name: queryEndTime
        in: query
        required: true
        schema:
          type: string
        description: Query end time of the start time. Device time
      - name: current
        in: query
        required: false
        schema:
          type: integer
        description: Current page. Start the query from page 1 and upload the page number that need to be queried. Defaults to the first page if not posted
      - name: pageSize
        in: query
        required: false
        schema:
          type: integer
        description: Display quantity per page. Number of data returned by the current page when queried. The default number is 20 if not posted. Maximum is 50
      responses:
        '200':
          description: Envelope response. Non-zero `code` values (401 wrong token, 403 missing token or token param) are returned inside the envelope with HTTP 200.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiEnvelope'
        '404':
          description: Unknown path.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NotFoundError'
components:
  schemas:
    NotFoundError:
      type: object
      description: Framework 404 body returned for unknown paths.
      properties:
        timestamp:
          type: string
          format: date-time
        path:
          type: string
        status:
          type: integer
        error:
          type: string
        message:
          type:
          - string
          - 'null'
        requestId:
          type: string
      examples:
      - timestamp: '2026-08-16T17:23:07.914+00:00'
        path: /
        status: 404
        error: Not Found
        message: null
        requestId: 1748b892-1427296
    ApiEnvelope:
      type: object
      description: Response envelope used by every operation. Observed live on https://test-api.franklinwh.com.
      properties:
        code:
          type: integer
          description: Result code. 401 = wrong token, 403 = missing token or token param.
        msg:
          type: string
          description: Human-readable result message.
        data:
          description: Operation payload. FranklinWH does not publish payload schemas; shape varies per operation.
      examples:
      - code: 401
        msg: wrong token
  securitySchemes:
    AuthorizationToken:
      type: apiKey
      in: header
      name: Authorization
      description: Token returned by POST /api-common/tokenizer (exchange of a `cp` / `ck` credential pair).