openapi: 3.0.3
info:
  title: Buildxact Public Authentication Estimate Items API
  version: v3
  description: 'Buildxact''s public REST API for residential construction estimating and job management. The API is fronted by Azure API Management and requires both an Ocp-Apim-Subscription-Key (identifying the partner / customer organization) and an Authorization: Bearer access token (identifying the specific user and tenant). Endpoints follow REST conventions with OData query support: $filter (operators include eq, gt, lt, contains, in), $orderBy with asc/desc, $top, $skip, and $count=true (record total returned in the x-odata-total-count response header). A short-lived access token is obtained via the accounts/auth/login endpoint and may be refreshed via accounts/auth/refresh-token. Rate-limited at 100 requests per 30-second window. A separate UAT/staging environment is available at developer-uat.buildxact.com for integration testing.'
  contact:
    name: Buildxact API Support
    url: https://developer.buildxact.com/getting-started
  termsOfService: https://www.buildxact.com/au/terms-of-use/
  license:
    name: Buildxact API Terms
    url: https://www.buildxact.com/au/terms-of-use/
servers:
- url: https://api.buildxact.com
  description: Production
- url: https://api-v3.buildxact.com
  description: Production (v3 host used for the accounts/auth endpoints)
- url: https://developer-uat.buildxact.com
  description: UAT / Staging
security:
- SubscriptionKey: []
  BearerAuth: []
tags:
- name: Estimate Items
  description: Line items inside an estimate (materials, labor, assemblies).
paths:
  /estimates/{estimateId}/items:
    parameters:
    - $ref: '#/components/parameters/EstimateId'
    get:
      tags:
      - Estimate Items
      summary: List Estimate Items
      description: Return the line items belonging to an estimate. Supports OData $filter, $orderBy, $top, $skip, and $count.
      operationId: listEstimateItems
      parameters:
      - $ref: '#/components/parameters/ODataFilter'
      - $ref: '#/components/parameters/ODataOrderBy'
      - $ref: '#/components/parameters/ODataTop'
      - $ref: '#/components/parameters/ODataSkip'
      - $ref: '#/components/parameters/ODataCount'
      responses:
        '200':
          description: Estimate item collection.
          headers:
            x-odata-total-count:
              description: Total item count when $count=true is supplied.
              schema:
                type: integer
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/EstimateItem'
    post:
      tags:
      - Estimate Items
      summary: Add Estimate Item
      description: Add a new line item to an estimate.
      operationId: addEstimateItem
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EstimateItem'
      responses:
        '201':
          description: Estimate item created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EstimateItem'
  /estimates/{estimateId}/items/{itemId}:
    parameters:
    - $ref: '#/components/parameters/EstimateId'
    - $ref: '#/components/parameters/ItemId'
    get:
      tags:
      - Estimate Items
      summary: Get Estimate Item
      description: Return a single estimate line item.
      operationId: getEstimateItem
      responses:
        '200':
          description: Estimate item found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EstimateItem'
        '404':
          $ref: '#/components/responses/NotFound'
    patch:
      tags:
      - Estimate Items
      summary: Update Estimate Item
      description: Partially update an estimate line item.
      operationId: updateEstimateItem
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EstimateItem'
      responses:
        '200':
          description: Estimate item updated.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EstimateItem'
    delete:
      tags:
      - Estimate Items
      summary: Delete Estimate Item
      description: Remove an estimate line item.
      operationId: deleteEstimateItem
      responses:
        '204':
          description: Estimate item deleted.
components:
  parameters:
    ODataTop:
      name: $top
      in: query
      description: Page size — maximum records to return.
      schema:
        type: integer
        minimum: 1
    ODataCount:
      name: $count
      in: query
      description: When true, include the total record count in the x-odata-total-count response header.
      schema:
        type: boolean
    ODataFilter:
      name: $filter
      in: query
      description: OData filter expression (operators include eq, gt, lt, contains, in).
      schema:
        type: string
    ODataSkip:
      name: $skip
      in: query
      description: Number of records to skip for pagination.
      schema:
        type: integer
        minimum: 0
    ItemId:
      name: itemId
      in: path
      required: true
      schema:
        type: string
      description: Unique identifier of the estimate line item.
    ODataOrderBy:
      name: $orderBy
      in: query
      description: OData orderBy expression (e.g. fieldName asc, fieldName desc).
      schema:
        type: string
    EstimateId:
      name: estimateId
      in: path
      required: true
      schema:
        type: string
      description: Unique identifier of the estimate.
  schemas:
    EstimateItem:
      type: object
      description: A line item on an estimate — material, labor, subcontractor, or assembly.
      properties:
        id:
          type: string
        estimateId:
          type: string
        description:
          type: string
        category:
          type: string
          description: Cost category (e.g. Materials, Labor, Subcontractor).
        unit:
          type: string
          description: Unit of measure (e.g. each, hour, m2, lf).
        quantity:
          type: number
          format: double
        unitCost:
          type: number
          format: double
        total:
          type: number
          format: double
        markup:
          type: number
          format: double
        totalIncMarkup:
          type: number
          format: double
        totalIncTax:
          type: number
          format: double
        taxContext:
          $ref: '#/components/schemas/TaxContext'
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
        details:
          type: array
          items:
            type: object
    TaxContext:
      type: object
      description: Tax inclusivity context — describes whether stored monetary values on an estimate or item already include tax and which tax rate applies.
      properties:
        taxRateId:
          type: string
        taxRate:
          type: number
          format: double
        pricesIncludeTax:
          type: boolean
  responses:
    NotFound:
      description: Resource not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    SubscriptionKey:
      type: apiKey
      in: header
      name: Ocp-Apim-Subscription-Key
      description: Azure API Management subscription key issued to a partner organization.
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Short-lived bearer token obtained from /accounts/auth/login.