Adds ip lookup middleware for cart creation

packages/medusa/src/api/routes/store/carts/index.js

@@ -3,12 +3,19 @@ import middlewares from "../../../middlewares"
 
 const route = Router()
 
-export default app => {
+export default (app, container) => {
+  const middlewareService = container.resolve("middlewareService")
+
   app.use("/carts", route)
 
   route.get("/:id", middlewares.wrap(require("./get-cart").default))
 
-  route.post("/", middlewares.wrap(require("./create-cart").default))
+  route.post(
+    "/",
+    middlewareService.usePreCartCreation(),
+    middlewares.wrap(require("./create-cart").default)
+  )
+
   route.post("/:id", middlewares.wrap(require("./update-cart").default))
 
   // Line items

packages/medusa/src/api/routes/store/index.js

@@ -30,7 +30,7 @@ export default (app, container, config) => {
   customerRoutes(route, container)
   productRoutes(route)
   orderRoutes(route)
-  cartRoutes(route)
+  cartRoutes(route, container)
   shippingOptionRoutes(route)
   regionRoutes(route)
 

packages/medusa/src/loaders/plugins.js

@@ -109,6 +109,10 @@ function registerMedusaMiddleware(pluginDetails, container) {
       pluginDetails.options
     )
   }
+
+  if (module.preCartCreation) {
+    middlewareService.addPreCartCreation(module.preCartCreation)
+  }
 }
 
 function registerCoreRouters(pluginDetails, container) {

packages/medusa/src/services/middleware.js

@@ -7,6 +7,7 @@ class MiddlewareService {
   constructor(container) {
     this.postAuthentication_ = []
     this.preAuthentication_ = []
+    this.preCartCreation_ = []
     this.routers = {}
   }
 
@@ -65,6 +66,17 @@ class MiddlewareService {
     })
   }
 
+  /**
+   * Adds a middleware function to be called before cart creation
+   * @param {function} middleware - the middleware function. Should return a
+   *   middleware function.
+   * @return {void}
+   */
+  addPreCartCreation(middleware) {
+    this.validateMiddleware_(middleware)
+    this.preCartCreation_.push(middleware)
+  }
+
   /**
    * Adds post authentication middleware to an express app.
    * @param {ExpressApp} app - the express app to add the middleware to
@@ -86,6 +98,10 @@ class MiddlewareService {
       app.use(object.middleware(object.options))
     }
   }
+
+  usePreCartCreation() {
+    return this.preCartCreation_
+  }
 }
 
 export default MiddlewareService