fix: enable code spliting for app

.dockerignore

@@ -6,4 +6,5 @@ README.md
 ROADMAP.md
 build
 .env
-data.db
+data.db
+app/node_modules

Makefile

@@ -3,6 +3,8 @@ VERSION := $(or $(VERSION),$(DEFAULT_VERSION))
 
 cmd:
 	cd server && go build -ldflags "-w -X main.VERSION=$(VERSION)" -o '../build/server'
+build-app:
+	cd app && npm i && npm run build
 clean:
 	rm -rf build
 test:

app/build/bundle.css

@@ -1,16 +0,0 @@
-body {
-  margin: 0;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
-    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
-    sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-  color: #374151;
-  font-size: 14px;
-}
-
-*,
-*:before,
-*:after {
-  box-sizing: inherit;
-}

app/esbuild.config.js

@@ -0,0 +1,11 @@
+const __is_prod__ = process.env.NODE_ENV === 'production';
+require('esbuild').build({
+	entryPoints: ['src/index.tsx'],
+	chunkNames: '[name]-[hash]',
+	bundle: true,
+	minify: __is_prod__,
+	outdir: 'build',
+	splitting: true,
+	format: 'esm',
+	watch: !__is_prod__,
+});

app/package.json

@@ -4,7 +4,8 @@
 	"description": "",
 	"main": "index.js",
 	"scripts": {
-		"build": "esbuild src/index.tsx --bundle --minify --sourcemap --outfile=build/bundle.js"
+		"build": "rm -rf build && NODE_ENV=production node ./esbuild.config.js",
+		"start": "NODE_ENV=development node ./esbuild.config.js"
 	},
 	"keywords": [],
 	"author": "Lakhan Samani",

app/src/Root.tsx

@@ -1,9 +1,10 @@
-import React, { useEffect } from 'react';
+import React, { useEffect, lazy, Suspense } from 'react';
 import { Switch, Route } from 'react-router-dom';
 import { useAuthorizer } from '@authorizerdev/authorizer-react';
-import Dashboard from './pages/dashboard';
-import Login from './pages/login';
-import ResetPassword from './pages/rest-password';
+
+const ResetPassword = lazy(() => import('./pages/rest-password'));
+const Login = lazy(() => import('./pages/login'));
+const Dashboard = lazy(() => import('./pages/dashboard'));
 
 export default function Root() {
 	const { token, loading, config } = useAuthorizer();
@@ -24,22 +25,26 @@ export default function Root() {
 
 	if (token) {
 		return (
-			<Switch>
-				<Route path="/app" exact>
-					<Dashboard />
-				</Route>
-			</Switch>
+			<Suspense fallback={<></>}>
+				<Switch>
+					<Route path="/app" exact>
+						<Dashboard />
+					</Route>
+				</Switch>
+			</Suspense>
 		);
 	}
 
 	return (
-		<Switch>
-			<Route path="/app" exact>
-				<Login />
-			</Route>
-			<Route path="/app/reset-password">
-				<ResetPassword />
-			</Route>
-		</Switch>
+		<Suspense fallback={<></>}>
+			<Switch>
+				<Route path="/app" exact>
+					<Login />
+				</Route>
+				<Route path="/app/reset-password">
+					<ResetPassword />
+				</Route>
+			</Switch>
+		</Suspense>
 	);
 }

app/src/index.css

@@ -0,0 +1,16 @@
+body {
+	margin: 0;
+	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+		'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+		sans-serif;
+	-webkit-font-smoothing: antialiased;
+	-moz-osx-font-smoothing: grayscale;
+	color: #374151;
+	font-size: 14px;
+}
+
+*,
+*:before,
+*:after {
+	box-sizing: inherit;
+}

app/src/index.tsx

@@ -1,5 +1,6 @@
 import React from 'react';
 import ReactDOM from 'react-dom';
 import App from './App';
+import './index.css';
 
 ReactDOM.render(<App />, document.getElementById('root'));

app/src/pages/rest-password.tsx

@@ -2,11 +2,11 @@ import React, { Fragment } from 'react';
 import { AuthorizerResetPassword } from '@authorizerdev/authorizer-react';
 
 export default function ResetPassword() {
-  return (
-    <Fragment>
-      <h1 style={{ textAlign: 'center' }}>Reset Password</h1>
-      <br />
-      <AuthorizerResetPassword />
-    </Fragment>
-  );
+	return (
+		<Fragment>
+			<h1 style={{ textAlign: 'center' }}>Reset Password</h1>
+			<br />
+			<AuthorizerResetPassword />
+		</Fragment>
+	);
 }

templates/app.tmpl

@@ -5,13 +5,13 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Document</title>
-    <link rel="stylesheet" href="/app/build/bundle.css">
+    <link rel="stylesheet" href="/app/build/index.css">
     <script>
      window.__authorizer__ = {{.data}}
     </script>
   </head>
   <body>
     <div id="root"></div>
-    <script src="/app/build/bundle.js"></script>
+    <script type="module" src="/app/build/index.js"></script>
   </body>
 </html>