Canal tax-and-shipping API

openapi: 3.2.0
info:
  title: Rokt Catalog csv Tax And Shipping API
  version: 1.0.1
  description: Integrate with Rokt Catalog
servers:
- url: https://api.shopcanal.com/platform
  description: Rokt Catalog Storefront Public API
tags:
- name: tax-and-shipping
paths:
  /tax-and-shipping/calculate/:
    post:
      operationId: tax_and_shipping_calculate_create
      description: "\n**[Storefront Only]** Calculate estimated tax lines and available shipping options and costs, given a set of line items, shipping address, and optionally a billing address.\n\nThis endpoint is typically used during the checkout process after the customer has provided their shipping address.\n\n**Request Body (`TaxCalculationQuerySerializer`):**\n\n- `line_items` (list, required): A list of objects, each specifying:\n\n  - `variant_id` (UUID, required): The Catalog ID of the *Storefront's* variant record.\n\n  - `quantity` (integer, required): The quantity of this variant.\n\n- `shipping_address` (object, required): The destination address, including fields like `address1`, `city`, `province_code`, `country_code`, `zip`. `name` and `phone` are optional but recommended.\n\n- `billing_address` (object, optional): The billing address, with the same fields as `shipping_address`.\n\n**Process:**\n\n1. **Identify Suppliers:** Catalog determines which unique Suppliers are involved based on the `variant_id`s provided.\n\n2. **Query Suppliers:** For each unique Supplier, Catalog queries their integrated shipping rate provider (e.g., Shopify's API) using the provided `shipping_address` and the subset of `line_items` belonging to that Supplier.\n\n3. **Aggregate Rates:** Catalog aggregates the rates returned from all involved Suppliers. The exact aggregation logic might vary (e.g., summing costs for the same shipping service level across suppliers, presenting distinct options per supplier).\n\n4. **Tax Calculation:** Catalog queries an integrated tax rate provider (e.g., Shopify's API) using the provided `shipping_address` and `billing_address` to calculate the tax line items for this order.\n\n**Response (`TaxAndShippingResponseSerializer`):**\n\n- `rates` (list): A list of available shipping rate options. Each object contains:\n\n  - `title` (string): The name of the shipping service (e.g., 'Standard Ground', 'Express Overnight').\n\n  - `price` (Money object): The calculated cost for this shipping option, including `amount` (decimal string) and `currency` (string).\n\n  - Potentially other fields depending on the Supplier's integration.\n\n- `tax_amount` (string): Total sum of the taxes applied to this order.\n\n- `currency` (string): Currency for the current order.\n\n- `tax_lines_per_supplier`: Dictionary mapping a supplier's id to a list of tax line responses.\n\nThis response allows the Storefront to present the customer with accurate shipping choices and costs before finalizing the order.\n\n"
      tags:
      - tax-and-shipping
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TaxCalculationQuery'
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/TaxCalculationQuery'
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/TaxCalculationQuery'
        required: true
      security:
      - platformAppId: []
        platformAppToken: []
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaxAndShippingResponse'
          description: ''
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: ''
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: ''
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: ''
        '500':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: ''
  /tax-and-shipping/v1/calculate/:
    post:
      operationId: tax_and_shipping_v1_calculate_create
      description: '

        **[Storefront Only]** Calculate estimated tax lines and available shipping options and costs, given a set of line items, shipping address, and optionally a billing address.


        This endpoint is typically used during the checkout process after the customer has provided their shipping address.


        **Process:**


        1. **Tax Calculation:** Rokt Catalog queries an integrated tax rate provider (e.g., Shopify''s API) using the provided `shipping_address` and `billing_address` to calculate the tax line items for this order.


        2. **Shipping Calculation:** Catalog queries an integrated shipping rate provider (e.g., Shopify''s API) using the provided `shipping_address` and the subset of `line_items` belonging to that Supplier.


        '
      tags:
      - tax-and-shipping
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TaxCalculationQuerySerializerV1'
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/TaxCalculationQuerySerializerV1'
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/TaxCalculationQuerySerializerV1'
        required: true
      security:
      - platformAppId: []
        platformAppToken: []
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaxAndShippingResponseSerializerV1'
          description: ''
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: ''
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: ''
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: ''
        '500':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
          description: ''
components:
  schemas:
    CreateOrderLineItem:
      type: object
      properties:
        variant_id:
          type: string
          format: uuid
        quantity:
          type: integer
        price:
          type: string
          format: decimal
          pattern: ^-?\d{0,8}(?:\.\d{0,4})?$
      required:
      - quantity
      - variant_id
    TaxCalculationQuery:
      type: object
      properties:
        line_items:
          type: array
          items:
            $ref: '#/components/schemas/CreateOrderLineItem'
        shipping_address:
          allOf:
          - $ref: '#/components/schemas/TaxAndShippingAddress'
          description: The destination address, including fields like `city`, `province_code`, `country_code`, `zip`. `address1`, `name` and `phone` are optional but recommended.
        billing_address:
          allOf:
          - $ref: '#/components/schemas/TaxAndShippingAddress'
          description: The billing address, including fields like `city`, `province_code`, `country_code`, `zip`. `address1`, `name` and `phone` are optional but recommended.
      required:
      - line_items
      - shipping_address
    TaxCalculationQuerySerializerV1:
      type: object
      properties:
        line_items:
          type: array
          items:
            $ref: '#/components/schemas/CreateOrderLineItem'
        shipping_address:
          allOf:
          - $ref: '#/components/schemas/TaxAndShippingAddress'
          description: The destination address, including fields like `city`, `province_code`, `country_code`, `zip`. `address1`, `name` and `phone` are optional but recommended.
        billing_address:
          allOf:
          - $ref: '#/components/schemas/TaxAndShippingAddress'
          description: The billing address, including fields like `city`, `province_code`, `country_code`, `zip`. `address1`, `name` and `phone` are optional but recommended.
        ppu_transaction_id:
          type: string
          description: The Post Purchase Upsell session id for the tax calculation. This will be reused at order creation time to match the tax calculation request.
      required:
      - line_items
      - ppu_transaction_id
      - shipping_address
    Error:
      type: object
      properties:
        message:
          type: string
        detail: {}
    TaxAndShippingResponse:
      type: object
      properties:
        shipping_rates:
          type: array
          items:
            $ref: '#/components/schemas/ShippingRate'
        tax_amount:
          type: string
          format: decimal
          pattern: ^-?\d{0,8}(?:\.\d{0,4})?$
          description: The total tax amount for the order
        currency:
          type: string
          default: USD
        tax_lines_per_supplier:
          type: object
          additionalProperties:
            type: array
            items:
              $ref: '#/components/schemas/TaxLineResponse'
          description: Dictionary mapping a supplier's id to a list of tax line responses.
        calculation_errors:
          type: array
          items:
            type: string
          description: Error messages
      required:
      - calculation_errors
      - shipping_rates
      - tax_amount
      - tax_lines_per_supplier
    TaxAndShippingResponseSerializerV1:
      type: object
      properties:
        line_items:
          type: array
          items:
            $ref: '#/components/schemas/TaxAndShippingLineItemResponse'
          description: Dictionary mapping a line item's id to a list of tax line responses.
        calculation_errors:
          type: array
          items:
            type: string
          description: Error messages
        request_id:
          type: string
          format: uuid
          description: The id of the tax request
      required:
      - calculation_errors
      - line_items
    TaxLineResponse:
      type: object
      properties:
        tax_amount:
          type: string
          format: decimal
          pattern: ^-?\d{0,8}(?:\.\d{0,4})?$
          description: The tax amount for the line item
        currency:
          type: string
          default: USD
        title:
          type: string
          description: The name of the tax line
        rate:
          type: string
          format: decimal
          pattern: ^-?\d{0,8}(?:\.\d{0,4})?$
          description: The tax rate for the line item
      required:
      - rate
      - tax_amount
      - title
    ShippingDetails:
      type: object
      properties:
        price:
          type: string
          format: decimal
          pattern: ^-?\d{0,8}(?:\.\d{0,4})?$
          description: The price of shipping
        code:
          type: string
          description: The shipping code
        title:
          type: string
          description: The shipping title
        description:
          type: string
          description: The shipping description
      required:
      - code
      - price
      - title
    ShippingRate:
      type: object
      properties:
        code:
          type: string
        title:
          type: string
        price:
          type: number
          format: double
        currency:
          type: string
          default: USD
      required:
      - code
      - price
      - title
    TaxAndShippingAddress:
      type: object
      description: Address serializer for tax and shipping calculations where address1 and name are optional
      properties:
        name:
          type: string
        address1:
          type: string
        address2:
          type: string
        city:
          type: string
        province:
          type: string
        province_code:
          type: string
        country:
          type: string
        country_code:
          type: string
        zip:
          type: string
        phone:
          type: string
      required:
      - city
      - country
      - province
      - zip
    TaxAndShippingLineItemResponse:
      type: object
      properties:
        tax_amount:
          type: string
          format: decimal
          pattern: ^-?\d{0,8}(?:\.\d{0,4})?$
          description: The tax amount for the line item
        currency:
          type: string
          default: USD
        variant_id:
          type: string
          format: uuid
        quantity:
          type: integer
        shipping_amount:
          type: string
          format: decimal
          pattern: ^-?\d{0,8}(?:\.\d{0,4})?$
          description: The shipping amount for the line item
        shipping_details:
          allOf:
          - $ref: '#/components/schemas/ShippingDetails'
          description: Shipping details including price, code, and title
      required:
      - quantity
      - shipping_amount
      - tax_amount
      - variant_id
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
    platformAppId:
      type: apiKey
      in: header
      name: X-CANAL-APP-ID
    platformAppToken:
      type: apiKey
      in: header
      name: X-CANAL-APP-TOKEN