feat: expose backend url in admin options (#7370)

packages/admin-next/admin-sdk/src/lib/config.ts

@@ -17,6 +17,8 @@ export async function getViteConfig(
 
   const root = path.resolve(__dirname, "./")
 
+  const backendUrl = options.backendUrl ?? ""
+
   return {
     root: path.resolve(__dirname, "./"),
     base: options.path,
@@ -29,12 +31,7 @@ export async function getViteConfig(
     },
     define: {
       __BASE__: JSON.stringify(options.path),
-      /**
-       * TODO: Accept backend url from config to support hosting the admin elsewhere.
-       * The empty string should be the default value, as that ensures that requests
-       * are made to the server that serves the admin dashboard.
-       */
-      __BACKEND_URL__: JSON.stringify(""),
+      __BACKEND_URL__: JSON.stringify(backendUrl),
     },
     server: {
       open: true,

packages/admin-next/admin-sdk/src/types.ts

@@ -1,4 +1,4 @@
 import { AdminOptions } from "@medusajs/types"
 
 export type BundlerOptions = Required<Pick<AdminOptions, "outDir" | "path">> &
-  Pick<AdminOptions, "vite">
+  Pick<AdminOptions, "vite" | "backendUrl">

packages/core/types/src/common/config-module.ts

@@ -33,6 +33,10 @@ export type AdminOptions = {
    * The default value is `./build`.
    */
   outDir?: string
+  /**
+   * The URL of your Medusa server. Defaults to an empty string, which means requests will hit the same server that serves the dashboard.
+   */
+  backendUrl?: string
   /**
    * Configure the Vite configuration for the admin dashboard. This function receives the default Vite configuration
    * and returns the modified configuration. The default value is `undefined`.