chore: cleanup/improve bootstrap (#14023)

* chore: cleanup/improve bootstrap

* chore: cleanup/improve bootstrap

* Create few-guests-visit.md

packages/medusa/src/commands/start.ts

@@ -200,6 +200,8 @@ async function start(args: {
       skipDbConnection: true,
     })
     const logger = container.resolve(ContainerRegistrationKeys.LOGGER)
+    const serverActivity = logger.activity(`Creating server`)
+
     await registerInstrumentation(directory)
 
     const app = express()
@@ -259,8 +261,6 @@ async function start(args: {
         }
       }
 
-      const serverActivity = logger.activity(`Creating server`)
-
       // Register a health check endpoint. Ideally this also checks the readiness of the service, rather than just returning a static response.
       app.get("/health", (_, res) => {
         res.status(200).send("OK")

packages/medusa/src/loaders/index.ts

@@ -92,8 +92,10 @@ async function loadEntrypoints(
   )
 
   if (shouldLoadBackgroundProcessors(configModule)) {
-    await subscribersLoader(plugins, container)
-    await jobsLoader(plugins, container)
+    await promiseAll([
+      subscribersLoader(plugins, container),
+      jobsLoader(plugins, container),
+    ])
   }
 
   if (isWorkerMode(configModule)) {
@@ -119,17 +121,18 @@ async function loadEntrypoints(
     next()
   })
 
-  const { shutdown } = await expressLoader({
-    app: expressApp,
-    container,
-  })
-
-  await adminLoader({ app: expressApp, configModule, rootDirectory, plugins })
-  await apiLoader({
-    container,
-    plugins,
-    app: expressApp,
-  })
+  const [{ shutdown }] = await promiseAll([
+    expressLoader({
+      app: expressApp,
+      container,
+    }),
+    adminLoader({ app: expressApp, configModule, rootDirectory, plugins }),
+    apiLoader({
+      container,
+      plugins,
+      app: expressApp,
+    }),
+  ])
 
   return shutdown
 }
@@ -140,10 +143,8 @@ export async function initializeContainer(
     skipDbConnection?: boolean
   }
 ): Promise<MedusaContainer> {
-  // custom flags from medusa project
   await featureFlagsLoader(rootDirectory)
   const configDir = await configLoader(rootDirectory, "medusa-config")
-  // core flags
   await featureFlagsLoader(join(__dirname, ".."))
 
   const customLogger = configDir.logger ?? defaultLogger