Update ReactGrid sample to use newer server-side rendering APIs

samples/react/ReactGrid/ReactApp/boot-server.jsx

@@ -0,0 +1,25 @@
+import React from 'react';
+import { renderToString } from 'react-dom/server';
+import { match, RouterContext } from 'react-router';
+import createMemoryHistory from 'history/lib/createMemoryHistory';
+import { routes } from './components/ReactApp';
+React;
+
+export default function renderApp (params) {
+    return new Promise((resolve, reject) => {
+        // Match the incoming request against the list of client-side routes
+        match({ routes, location: params.location }, (error, redirectLocation, renderProps) => {
+            if (error) {
+                throw error;
+            }
+
+            // Build an instance of the application
+            const history = createMemoryHistory(params.url);
+            const app = <RouterContext {...renderProps} />;
+
+            // Render it as an HTML string which can be injected into the response
+            const html = renderToString(app); 
+            resolve({ html });
+        });
+    });
+}