feat(tax): add endpoints to create tax regions and tax rates (#6533)

**What**
Adds:
- POST /admin/tax-regions
- POST /admin/tax-rates
- GET /admin/tax-rates
- `createTaxRegionsWorkflow`
- `createTaxRatesWorkflow`

packages/core-flows/src/index.ts

@@ -7,5 +7,6 @@ export * from "./invite"
 export * from "./promotion"
 export * from "./region"
 export * from "./user"
+export * from "./tax"
 export * from "./api-key"
 export * from "./store"

packages/core-flows/src/tax/index.ts

@@ -0,0 +1,2 @@
+export * from "./steps"
+export * from "./workflows"

packages/core-flows/src/tax/steps/create-tax-rates.ts

@@ -0,0 +1,31 @@
+import { ModuleRegistrationName } from "@medusajs/modules-sdk"
+import { CreateTaxRateDTO, ITaxModuleService } from "@medusajs/types"
+import { StepResponse, createStep } from "@medusajs/workflows-sdk"
+
+export const createTaxRatesStepId = "create-tax-rates"
+export const createTaxRatesStep = createStep(
+  createTaxRatesStepId,
+  async (data: CreateTaxRateDTO[], { container }) => {
+    const service = container.resolve<ITaxModuleService>(
+      ModuleRegistrationName.TAX
+    )
+
+    const created = await service.create(data)
+
+    return new StepResponse(
+      created,
+      created.map((rate) => rate.id)
+    )
+  },
+  async (createdIds, { container }) => {
+    if (!createdIds?.length) {
+      return
+    }
+
+    const service = container.resolve<ITaxModuleService>(
+      ModuleRegistrationName.TAX
+    )
+
+    await service.delete(createdIds)
+  }
+)

packages/core-flows/src/tax/steps/create-tax-regions.ts

@@ -0,0 +1,31 @@
+import { ModuleRegistrationName } from "@medusajs/modules-sdk"
+import { CreateTaxRegionDTO, ITaxModuleService } from "@medusajs/types"
+import { StepResponse, createStep } from "@medusajs/workflows-sdk"
+
+export const createTaxRegionsStepId = "create-tax-regions"
+export const createTaxRegionsStep = createStep(
+  createTaxRegionsStepId,
+  async (data: CreateTaxRegionDTO[], { container }) => {
+    const service = container.resolve<ITaxModuleService>(
+      ModuleRegistrationName.TAX
+    )
+
+    const created = await service.createTaxRegions(data)
+
+    return new StepResponse(
+      created,
+      created.map((region) => region.id)
+    )
+  },
+  async (createdIds, { container }) => {
+    if (!createdIds?.length) {
+      return
+    }
+
+    const service = container.resolve<ITaxModuleService>(
+      ModuleRegistrationName.TAX
+    )
+
+    await service.delete(createdIds)
+  }
+)

packages/core-flows/src/tax/steps/index.ts

@@ -0,0 +1,2 @@
+export * from "./create-tax-regions"
+export * from "./create-tax-rates"

packages/core-flows/src/tax/workflows/create-tax-rates.ts

@@ -0,0 +1,13 @@
+import { CreateTaxRateDTO, TaxRateDTO } from "@medusajs/types"
+import { WorkflowData, createWorkflow } from "@medusajs/workflows-sdk"
+import { createTaxRatesStep } from "../steps"
+
+type WorkflowInput = CreateTaxRateDTO[]
+
+export const createTaxRatesWorkflowId = "create-tax-rates"
+export const createTaxRatesWorkflow = createWorkflow(
+  createTaxRatesWorkflowId,
+  (input: WorkflowData<WorkflowInput>): WorkflowData<TaxRateDTO[]> => {
+    return createTaxRatesStep(input)
+  }
+)

packages/core-flows/src/tax/workflows/create-tax-regions.ts

@@ -0,0 +1,13 @@
+import { CreateTaxRegionDTO, TaxRegionDTO } from "@medusajs/types"
+import { WorkflowData, createWorkflow } from "@medusajs/workflows-sdk"
+import { createTaxRegionsStep } from "../steps"
+
+type WorkflowInput = CreateTaxRegionDTO[]
+
+export const createTaxRegionsWorkflowId = "create-tax-regions"
+export const createTaxRegionsWorkflow = createWorkflow(
+  createTaxRegionsWorkflowId,
+  (input: WorkflowData<WorkflowInput>): WorkflowData<TaxRegionDTO[]> => {
+    return createTaxRegionsStep(input)
+  }
+)

packages/core-flows/src/tax/workflows/index.ts

@@ -0,0 +1,2 @@
+export * from "./create-tax-regions"
+export * from "./create-tax-rates"