feat(cart): POST /store/carts/:id (#6274)

Depends on:
- #6262 
- #6273

packages/medusa/src/api-v2/store/carts/[id]/route.ts

@@ -1,4 +1,7 @@
+import { updateCartsWorkflow } from "@medusajs/core-flows"
+import { UpdateCartDataDTO } from "@medusajs/types"
 import { MedusaRequest, MedusaResponse } from "../../../../types/routing"
+
 import { defaultStoreCartRemoteQueryObject } from "../query-config"
 
 export const GET = async (req: MedusaRequest, res: MedusaResponse) => {
@@ -17,3 +20,23 @@ export const GET = async (req: MedusaRequest, res: MedusaResponse) => {
 
   res.json({ cart })
 }
+
+export const POST = async (req: MedusaRequest, res: MedusaResponse) => {
+  const updateCartWorkflow = updateCartsWorkflow(req.scope)
+
+  const workflowInput = {
+    selector: { id: req.params.id },
+    update: req.validatedBody as UpdateCartDataDTO,
+  }
+
+  const { result, errors } = await updateCartWorkflow.run({
+    input: workflowInput,
+    throwOnError: false,
+  })
+
+  if (Array.isArray(errors) && errors[0]) {
+    throw errors[0].error
+  }
+
+  res.status(200).json({ cart: result[0] })
+}

packages/medusa/src/api-v2/store/carts/middlewares.ts

@@ -1,7 +1,11 @@
 import { transformBody, transformQuery } from "../../../api/middlewares"
 import { MiddlewareRoute } from "../../../loaders/helpers/routing/types"
 import * as QueryConfig from "./query-config"
-import { StoreGetCartsCartParams, StorePostCartReq } from "./validators"
+import {
+  StoreGetCartsCartParams,
+  StorePostCartReq,
+  StorePostCartsCartReq,
+} from "./validators"
 
 export const storeCartRoutesMiddlewares: MiddlewareRoute[] = [
   {
@@ -19,4 +23,9 @@ export const storeCartRoutesMiddlewares: MiddlewareRoute[] = [
     matcher: "/store/carts",
     middlewares: [transformBody(StorePostCartReq)],
   },
+  {
+    method: ["POST"],
+    matcher: "/store/carts/:id",
+    middlewares: [transformBody(StorePostCartsCartReq)],
+  },
 ]

packages/medusa/src/api-v2/store/carts/validators.ts

@@ -1,6 +1,7 @@
 import { Type } from "class-transformer"
 import {
   IsArray,
+  IsEmail,
   IsInt,
   IsNotEmpty,
   IsObject,
@@ -8,7 +9,8 @@ import {
   IsString,
   ValidateNested,
 } from "class-validator"
-import { FindParams } from "../../../types/common"
+import { AddressPayload, FindParams } from "../../../types/common"
+import { IsType } from "../../../utils"
 
 export class StoreGetCartsCartParams extends FindParams {}
 
@@ -35,6 +37,7 @@ export class StorePostCartReq {
   @IsString()
   email?: string
 
+  // TODO: Remove in favor of using region currencies, as in the core
   @IsOptional()
   @IsString()
   currency_code?: string
@@ -53,3 +56,45 @@ export class StorePostCartReq {
   @IsOptional()
   metadata?: Record<string, unknown>
 }
+
+export class StorePostCartsCartReq {
+  @IsOptional()
+  @IsString()
+  region_id?: string
+
+  @IsEmail()
+  @IsOptional()
+  email?: string
+
+  @IsOptional()
+  @IsType([AddressPayload, String])
+  billing_address?: AddressPayload | string
+
+  @IsOptional()
+  @IsType([AddressPayload, String])
+  shipping_address?: AddressPayload | string
+
+  @IsString()
+  @IsOptional()
+  customer_id?: string
+
+  @IsEmail()
+  @IsOptional()
+  sales_channel_id?: string
+
+  @IsObject()
+  @IsOptional()
+  metadata?: Record<string, unknown>
+
+  // @IsOptional()
+  // @IsArray()
+  // @ValidateNested({ each: true })
+  // @Type(() => GiftCard)
+  // gift_cards?: GiftCard[]
+
+  // @IsOptional()
+  // @IsArray()
+  // @ValidateNested({ each: true })
+  // @Type(() => Discount)
+  // discounts?: Discount[]
+}