feat(medusa): Add health endpoint for all running modes of medusa (#10737)

packages/core/framework/src/http/express-loader.ts

@@ -95,10 +95,6 @@ export async function expressLoader({ app }: { app: Express }): Promise<{
   // Currently we don't allow configuration of static files, but this can be revisited as needed.
   app.use("/static", express.static(path.join(baseDir, "static")))
 
-  app.get("/health", (req, res) => {
-    res.status(200).send("OK")
-  })
-
   const shutdown = async () => {
     redisClient?.disconnect()
   }

packages/medusa/src/commands/start.ts

@@ -138,6 +138,12 @@ 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")
+      })
+
       const server = GracefulShutdownServer.create(
         http_.listen(port, host).on("listening", () => {
           logger.success(