chore(): apply locale middleware to all store routes (#14305)

* chore(): apply locale middleware to all store routes

* Create pink-papayas-brush.md

packages/core/framework/src/http/middlewares/apply-locale.ts

@@ -25,6 +25,7 @@ export async function applyLocale(
   const queryLocale = req.query.locale as string | undefined
   if (queryLocale) {
     req.locale = normalizeLocale(queryLocale)
+    delete req.query.locale
     return next()
   }
 

packages/core/framework/src/http/router.ts

@@ -28,7 +28,7 @@ import { Logger, MedusaContainer } from "@medusajs/types"
 import { join } from "path"
 import { configManager } from "../config"
 import { MiddlewareFileLoader } from "./middleware-file-loader"
-import { authenticate, AuthType } from "./middlewares"
+import { applyLocale, authenticate, AuthType } from "./middlewares"
 import { createBodyParserMiddlewaresStack } from "./middlewares/bodyparser"
 import { ensurePublishableApiKeyMiddleware } from "./middlewares/ensure-publishable-api-key"
 import { errorHandler } from "./middlewares/error-handler"
@@ -406,6 +406,18 @@ export class ApiLoader {
     this.#app.use(namespace, middleware as RequestHandler)
   }
 
+  #applyLocaleMiddleware(namespace: string) {
+    this.#logger.debug(
+      `Registering locale middleware for namespace ${namespace}`
+    )
+    let middleware = ApiLoader.traceMiddleware
+      ? ApiLoader.traceMiddleware(applyLocale, {
+          route: namespace,
+        })
+      : applyLocale
+    this.#app.use(namespace, middleware as RequestHandler)
+  }
+
   async load() {
     if (FeatureFlag.isFeatureEnabled("backend_hmr")) {
       ;(global as any).__MEDUSA_HMR_API_LOADER__ = this
@@ -482,6 +494,8 @@ export class ApiLoader {
      */
     this.#applyStorePublishableKeyMiddleware("/store")
 
+    this.#applyLocaleMiddleware("/store")
+
     this.#applyAuthMiddleware(
       routesFinder,
       "/store",