[AI] Migrate health-check script to TypeScript (#8599)

* [AI] Migrate health-check script to TypeScript

* [AI] Include TypeScript scripts in knip entries

* [AI] Validate health status response type

knip.json

@@ -95,7 +95,7 @@
         "app.ts",
         "src/app.ts",
         "bin/**/*.js",
-        "src/scripts/**/*.js",
+        "src/scripts/**/*.{js,ts}",
         "src/app-*/app-*.{ts,js}"
       ]
     }

packages/sync-server/src/scripts/health-check.ts

@@ -5,13 +5,28 @@ const protocol =
 const hostname =
   config.get('hostname') === '::' ? 'localhost' : config.get('hostname');
 
+function getHealthStatus(response: unknown): string | undefined {
+  if (
+    typeof response === 'object' &&
+    response !== null &&
+    'status' in response &&
+    typeof response.status === 'string'
+  ) {
+    return response.status;
+  }
+
+  return undefined;
+}
+
 fetch(`${protocol}://${hostname}:${config.get('port')}/health`)
-  .then(res => res.json())
-  .then(res => {
-    if (res.status !== 'UP') {
+  .then(response => response.json())
+  .then(response => {
+    const status = getHealthStatus(response);
+
+    if (status !== 'UP') {
       throw new Error(
         'Health check failed: Server responded to health check with status ' +
-          res.status,
+          status,
       );
     }
   })

packages/sync-server/vite.config.mts

@@ -55,7 +55,7 @@ export default defineConfig({
         ),
         'scripts/health-check': path.resolve(
           __dirname,
-          'src/scripts/health-check.js',
+          'src/scripts/health-check.ts',
         ),
       },
       output: {

upcoming-release-notes/migrate-health-check-typescript.md

@@ -0,0 +1,6 @@
+---
+category: Maintenance
+authors: [anjupathak03]
+---
+
+Migrate the sync-server health-check script to TypeScript