openapi: 3.0.3
info:
  title: 'farmOS JSON: Assets Quantities API'
  description: 'The farmOS JSON:API provides access to farm assets, logs, plans, and records.

    It follows the JSON:API specification (https://jsonapi.org/) with UUID-based

    resource identifiers. The root endpoint at /api returns server metadata and

    available resource types. Resource endpoints follow the pattern

    /api/[entity-type]/[bundle].


    farmOS is an open-source farm management and record-keeping system built on

    Drupal. It supports self-hosted deployments and managed hosting via Farmier.

    '
  version: 2.x
  contact:
    name: farmOS Community
    url: https://farmos.org/community/
  license:
    name: GNU General Public License v2.0
    url: https://github.com/farmOS/farmOS/blob/main/LICENSE.txt
  termsOfService: https://farmos.org/
servers:
- url: https://{farmOS-host}/api
  description: Self-hosted farmOS instance
  variables:
    farmOS-host:
      default: example.farmos.net
      description: The hostname of your farmOS instance (self-hosted or Farmier-managed)
security:
- oauth2AuthorizationCode:
  - farm_manager
- oauth2ClientCredentials:
  - farm_manager
tags:
- name: Quantities
  description: Measurement quantities associated with logs
paths:
  /quantity/standard:
    get:
      operationId: listStandardQuantities
      summary: List standard quantities
      description: Measurement quantities associated with logs.
      tags:
      - Quantities
      parameters:
      - $ref: '#/components/parameters/PageSize'
      - $ref: '#/components/parameters/PageOffset'
      - $ref: '#/components/parameters/FilterField'
      - $ref: '#/components/parameters/SortField'
      - $ref: '#/components/parameters/IncludeRelated'
      responses:
        '200':
          description: A collection of standard quantities
          content:
            application/vnd.api+json:
              schema:
                $ref: '#/components/schemas/QuantityCollection'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createStandardQuantity
      summary: Create a standard quantity
      tags:
      - Quantities
      requestBody:
        required: true
        content:
          application/vnd.api+json:
            schema:
              $ref: '#/components/schemas/QuantityRequest'
      responses:
        '201':
          description: Standard quantity created
          content:
            application/vnd.api+json:
              schema:
                $ref: '#/components/schemas/QuantityResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '422':
          $ref: '#/components/responses/UnprocessableEntity'
  /quantity/standard/{id}:
    parameters:
    - $ref: '#/components/parameters/ResourceId'
    get:
      operationId: getStandardQuantity
      summary: Get a standard quantity
      tags:
      - Quantities
      responses:
        '200':
          description: A standard quantity
          content:
            application/vnd.api+json:
              schema:
                $ref: '#/components/schemas/QuantityResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
    patch:
      operationId: updateStandardQuantity
      summary: Update a standard quantity
      tags:
      - Quantities
      requestBody:
        required: true
        content:
          application/vnd.api+json:
            schema:
              $ref: '#/components/schemas/QuantityRequest'
      responses:
        '200':
          description: Updated standard quantity
          content:
            application/vnd.api+json:
              schema:
                $ref: '#/components/schemas/QuantityResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteStandardQuantity
      summary: Delete a standard quantity
      tags:
      - Quantities
      responses:
        '204':
          description: Standard quantity deleted
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    QuantityData:
      type: object
      required:
      - type
      - attributes
      properties:
        type:
          type: string
          example: quantity--standard
        id:
          type: string
          format: uuid
          readOnly: true
        attributes:
          $ref: '#/components/schemas/QuantityAttributes'
        relationships:
          $ref: '#/components/schemas/QuantityRelationships'
        links:
          $ref: '#/components/schemas/JsonApiLinks'
    JsonApiError:
      type: object
      properties:
        errors:
          type: array
          items:
            type: object
            properties:
              status:
                type: string
              title:
                type: string
              detail:
                type: string
              source:
                type: object
                properties:
                  pointer:
                    type: string
    JsonApiRelationship:
      type: object
      properties:
        data:
          oneOf:
          - $ref: '#/components/schemas/JsonApiRelationshipData'
          - type: array
            items:
              $ref: '#/components/schemas/JsonApiRelationshipData'
          - nullable: true
            type: object
            maxProperties: 0
        links:
          $ref: '#/components/schemas/JsonApiLinks'
    QuantityAttributes:
      type: object
      properties:
        measure:
          type: string
          description: Type of measurement (e.g., weight, volume, count, length, area, time, temperature, pressure, water_content, rating, ratio)
          enum:
          - weight
          - volume
          - count
          - length
          - area
          - time
          - temperature
          - pressure
          - water_content
          - rating
          - ratio
        value:
          type: object
          description: Numeric value with decimal precision
          properties:
            numerator:
              type: integer
            denominator:
              type: integer
            decimal:
              type: string
        label:
          type: string
          description: Optional label for the quantity
        inventory_adjustment:
          type: string
          description: How this quantity affects inventory (increment or decrement)
          enum:
          - increment
          - decrement
          - reset
    QuantityRelationships:
      type: object
      properties:
        units:
          $ref: '#/components/schemas/JsonApiRelationship'
        inventory_asset:
          $ref: '#/components/schemas/JsonApiRelationship'
    QuantityResponse:
      type: object
      properties:
        data:
          $ref: '#/components/schemas/QuantityData'
        links:
          $ref: '#/components/schemas/JsonApiLinks'
    QuantityCollection:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/QuantityData'
        links:
          type: object
        meta:
          type: object
          properties:
            count:
              type: integer
    QuantityRequest:
      type: object
      required:
      - data
      properties:
        data:
          $ref: '#/components/schemas/QuantityData'
    JsonApiLinks:
      type: object
      properties:
        self:
          type: string
          format: uri
        related:
          type: string
          format: uri
    JsonApiRelationshipData:
      type: object
      properties:
        type:
          type: string
        id:
          type: string
          format: uuid
  parameters:
    FilterField:
      name: filter[field]
      in: query
      description: 'JSON:API filter parameter. Use dot notation for nested fields.

        Example: filter[status]=pending or filter[timestamp][value]=1234567890&filter[timestamp][operator]=>=

        '
      schema:
        type: string
    PageSize:
      name: page[limit]
      in: query
      description: Number of results per page
      schema:
        type: integer
        minimum: 1
        maximum: 50
        default: 50
    IncludeRelated:
      name: include
      in: query
      description: 'Comma-separated list of related resources to include in the response.

        Example: include=asset,quantity

        '
      schema:
        type: string
    SortField:
      name: sort
      in: query
      description: 'Comma-separated list of fields to sort by. Prefix with - for descending.

        Example: sort=-timestamp,name

        '
      schema:
        type: string
    PageOffset:
      name: page[offset]
      in: query
      description: Offset for pagination
      schema:
        type: integer
        minimum: 0
        default: 0
    ResourceId:
      name: id
      in: path
      required: true
      description: UUID of the resource
      schema:
        type: string
        format: uuid
      example: 3f1c2b4a-5d6e-7890-abcd-ef1234567890
  responses:
    NotFound:
      description: Resource not found
      content:
        application/vnd.api+json:
          schema:
            $ref: '#/components/schemas/JsonApiError'
    UnprocessableEntity:
      description: Validation error
      content:
        application/vnd.api+json:
          schema:
            $ref: '#/components/schemas/JsonApiError'
    Unauthorized:
      description: Authentication required or token expired
      content:
        application/vnd.api+json:
          schema:
            $ref: '#/components/schemas/JsonApiError'
  securitySchemes:
    oauth2AuthorizationCode:
      type: oauth2
      description: 'OAuth2 Authorization Code grant for third-party integrations. Users

        authorize the client application to access their farmOS data.

        '
      flows:
        authorizationCode:
          authorizationUrl: /oauth/authorize
          tokenUrl: /oauth/token
          scopes:
            farm_manager: Full management access to the farm
            farm_worker: Worker-level access to farm records
            farm_viewer: Read-only access to farm records
    oauth2ClientCredentials:
      type: oauth2
      description: 'OAuth2 Client Credentials grant for machine-to-machine authentication.

        Used when no user account is required.

        '
      flows:
        clientCredentials:
          tokenUrl: /oauth/token
          scopes:
            farm_manager: Full management access to the farm
            farm_worker: Worker-level access to farm records
            farm_viewer: Read-only access to farm records
externalDocs:
  description: farmOS API Documentation
  url: https://farmos.org/development/api/