feat(core-flows,medusa,types,utils): adds update cart API with promotions (#6514)

what:

- adds update cart API
  - workflow
  - promotions
  - sales channel
  - region
  - customer

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

@@ -1,4 +1,5 @@
 import { updateCartPromotionsWorkflow } from "@medusajs/core-flows"
+import { PromotionActions } from "@medusajs/utils"
 import { MedusaRequest, MedusaResponse } from "../../../../../types/routing"
 import { StorePostCartsCartPromotionsReq } from "../../validators"
 
@@ -10,6 +11,7 @@ export const POST = async (req: MedusaRequest, res: MedusaResponse) => {
     input: {
       promoCodes: payload.promo_codes,
       cartId: req.params.id,
+      action: PromotionActions.ADD,
     },
     throwOnError: false,
   })
@@ -29,7 +31,7 @@ export const DELETE = async (req: MedusaRequest, res: MedusaResponse) => {
     input: {
       promoCodes: payload.promo_codes,
       cartId: req.params.id,
-      removePromotions: true,
+      action: PromotionActions.REMOVE,
     },
     throwOnError: false,
   })

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

@@ -1,9 +1,9 @@
-import { MedusaRequest, MedusaResponse } from "../../../../types/routing"
-
+import { updateCartWorkflow } from "@medusajs/core-flows"
 import { UpdateCartDataDTO } from "@medusajs/types"
-import { defaultStoreCartFields } from "../query-config"
 import { remoteQueryObjectFromString } from "@medusajs/utils"
-import { updateCartsWorkflow } from "@medusajs/core-flows"
+
+import { MedusaRequest, MedusaResponse } from "../../../../types/routing"
+import { defaultStoreCartFields } from "../query-config"
 
 export const GET = async (req: MedusaRequest, res: MedusaResponse) => {
   const remoteQuery = req.scope.resolve("remoteQuery")
@@ -24,15 +24,13 @@ export const POST = async (
   req: MedusaRequest<UpdateCartDataDTO>,
   res: MedusaResponse
 ) => {
-  const updateCartWorkflow = updateCartsWorkflow(req.scope)
+  const workflow = updateCartWorkflow(req.scope)
 
-  const workflowInput = {
-    selector: { id: req.params.id },
-    update: req.validatedBody,
-  }
-
-  const { result, errors } = await updateCartWorkflow.run({
-    input: workflowInput,
+  const { errors } = await workflow.run({
+    input: {
+      ...(req.validatedBody as UpdateCartDataDTO),
+      id: req.params.id,
+    },
     throwOnError: false,
   })
 
@@ -40,5 +38,16 @@ export const POST = async (
     throw errors[0].error
   }
 
-  res.status(200).json({ cart: result[0] })
+  const remoteQuery = req.scope.resolve("remoteQuery")
+
+  const query = remoteQueryObjectFromString({
+    entryPoint: "cart",
+    fields: defaultStoreCartFields,
+  })
+
+  const [updatedCart] = await remoteQuery(query, {
+    cart: { id: req.params.id },
+  })
+
+  res.status(200).json({ cart: updatedCart })
 }

packages/medusa/src/api-v2/store/carts/query-config.ts

@@ -10,8 +10,14 @@ export const defaultStoreCartFields = [
   "items.title",
   "items.quantity",
   "items.unit_price",
+  "items.adjustments.id",
+  "items.adjustments.code",
+  "items.adjustments.amount",
   "customer.id",
   "customer.email",
+  "shipping_methods.adjustments.id",
+  "shipping_methods.adjustments.code",
+  "shipping_methods.adjustments.amount",
   "shipping_address.id",
   "shipping_address.first_name",
   "shipping_address.last_name",
@@ -40,20 +46,24 @@ export const defaultStoreCartFields = [
 
 export const defaultStoreCartRelations = [
   "items",
+  "items.adjustments",
   "region",
   "customer",
   "shipping_address",
   "billing_address",
   "shipping_methods",
+  "shipping_methods.adjustments",
 ]
 
 export const allowedRelations = [
   "items",
+  "items.adjustments",
   "region",
   "customer",
   "shipping_address",
   "billing_address",
   "shipping_methods",
+  "shipping_methods.adjustments",
   "sales_channel",
 ]
 

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

@@ -81,14 +81,19 @@ export class StorePostCartsCartReq {
   @IsType([AddressPayload, String])
   shipping_address?: AddressPayload | string
 
-  @IsEmail()
   @IsOptional()
+  @IsString()
   sales_channel_id?: string
 
   @IsObject()
   @IsOptional()
   metadata?: Record<string, unknown>
 
+  @IsOptional()
+  @IsArray()
+  @Type(() => String)
+  promo_codes?: string[]
+
   // @IsOptional()
   // @IsArray()
   // @ValidateNested({ each: true })