chore: add example

basic example satisfying a common express app
dumbjs · Dec 2, 2023 · c538f12 · c538f12
1 parent 1858120
commit c538f12
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Showing 9 changed files with 2,132 additions and 1 deletion.
diff --git a/examples/01_express/.gitignore b/examples/01_express/.gitignore
@@ -0,0 +1 @@
+/dist
diff --git a/examples/01_express/build.mjs b/examples/01_express/build.mjs
@@ -0,0 +1,64 @@
+import { copyFile, writeFile } from 'fs/promises'
+import { createContext } from 'esbuild-multicontext'
+import { nodeExternals } from 'esbuild-plugin-node-externals'
+
+const isDev = process.argv.includes('--dev')
+
+const buildContext = createContext({
+  bundle: true,
+})
+
+// Server
+buildContext.config({
+  platform: 'node',
+  target: 'node14',
+  entryPoints: ['./server/server.js'],
+  outdir: './dist/server',
+  format: 'cjs',
+  plugins: [nodeExternals()],
+})
+
+// Client
+buildContext.config({
+  platform: 'browser',
+  bundle: true,
+  entryPoints: ['./client/entry.js'],
+  outdir: './dist/client',
+  format: 'esm',
+})
+
+buildContext.on('error', errors => {
+  errors.map(x => process.stdout.write(x.reason.toString() + '\n'))
+})
+
+buildContext.on('build', async () => {
+  process.stdout.write('[custom-builder] Built\n')
+
+  // Copy assets after build is complete
+  await copyFile('./client/index.html', './dist/client/index.html')
+
+  if (isDev) return
+  process.exit(0)
+})
+
+function createChain() {
+  let agg = Promise.resolve()
+  const _chainer = fn => {
+    agg = agg.then(fn)
+  }
+  _chainer.value = async () => {
+    await agg
+    return null
+  }
+  return _chainer
+}
+
+const chain = createChain()
+
+if (isDev) {
+  chain(() => buildContext.watch())
+}
+
+chain(() => buildContext.build())
+
+await chain.value
diff --git a/examples/01_express/client/dom.js b/examples/01_express/client/dom.js
@@ -0,0 +1,25 @@
+export const h = (tagName, attrs, ...children) => {
+  const node = document.createElement(tagName)
+
+  Object.entries(attrs).forEach(([k, v]) => {
+    if (k in node) {
+      node[k] = v
+    } else {
+      node.setAttribute(k, v)
+    }
+  })
+
+  children.forEach(child => {
+    if (child.__domNode) {
+      child(node)
+    } else if (child instanceof Node) {
+      node.appendChild(child)
+    } else if (typeof child == 'string') {
+      node.appendChild(document.createTextNode(child))
+    }
+  })
+
+  const mounter = mountOn => mountOn.appendChild(node)
+  mounter.__domNode = true
+  return mounter
+}
diff --git a/examples/01_express/client/entry.js b/examples/01_express/client/entry.js
@@ -0,0 +1,6 @@
+import { h } from './dom.js'
+
+const text = h('p', {}, 'Hello world!')
+const mountOn = h('div', {}, text)
+
+mountOn(document.body)
diff --git a/examples/01_express/client/index.html b/examples/01_express/client/index.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Document</title>
+  </head>
+  <body>
+    <script src="/client/entry.js"></script>
+  </body>
+</html>