react app works

amqp_dashboard/frontend/src/app.tsx

@@ -0,0 +1,20 @@
+import React from 'react';
+import DataPage from './components/data-page';
+import './app.css';
+
+const IS_PROD = process.env.NODE_ENV === 'production';
+
+const URL_PREFIX = IS_PROD ? '' : 'http://localhost:8080/';
+
+const App = () => {
+  return (
+    <div className="app">
+      <header className="header">
+        <h1>AMQP Dashboard</h1>
+      </header>
+      <DataPage prefix={URL_PREFIX} />
+    </div>
+  );
+};
+
+export default App;