Links between Tax Code Module and Other Modules

This document showcases the module links defined between the Tax Code Module and other Commerce Modules.

Summary

The Tax Code Module has the following links to other modules:

First Data Model	Second Data Model	Type	Description
ProductCategory	TaxCode	Stored - many-to-one	Associates product categories with tax codes for tax classification

Product Module

Mercur defines a link between the Product Module’s ProductCategory data model and the Tax Code Module’s TaxCode data model. This allows product categories to be associated with specific tax codes for proper tax calculation and compliance.

Retrieve with Query

To retrieve the tax code of a product category with Query, pass tax_code.* in fields:

query.graph
useQueryGraphStep

const { data: categories } = await query.graph({
  entity: "product_category",
  fields: [
    "*",
    "tax_code.*",
  ],
})

// categories[0].tax_code

import { useQueryGraphStep } from "@medusajs/medusa/core-flows"

// ...

const { data: categories } = useQueryGraphStep({
  entity: "product_category",
  fields: [
    "*",
    "tax_code.*",
  ],
})

// categories[0].tax_code

Manage with Link

To manage the tax code of a product category, use Link:

link.create
createRemoteLinkStep

import { Modules } from "@medusajs/framework/utils"

// ...

await link.create({
  [Modules.PRODUCT]: {
    product_category_id: "pcat_123",
  },
  taxcode: {
    tax_code_id: "taxc_123",
  },
})

import { createRemoteLinkStep } from "@medusajs/medusa/core-flows"

// ...

createRemoteLinkStep({
  [Modules.PRODUCT]: {
    product_category_id: "pcat_123",
  },
  taxcode: {
    tax_code_id: "taxc_123",
  },
})

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Tax Code Module Links

Links between Tax Code Module and Other Modules

Summary

Product Module

Retrieve with Query

Manage with Link

​Links between Tax Code Module and Other Modules

​Summary

​Product Module

​Retrieve with Query

​Manage with Link

Links between Tax Code Module and Other Modules

Summary

Product Module

Retrieve with Query

Manage with Link