more node

rootfs_overlay/lkmc/nodejs/express.js

@@ -1,13 +1,45 @@
 #!/usr/bin/env node
 
 const express = require('express')
+
 const app = express()
-const port = 3000
-
 app.get('/', (req, res) => {
-  res.send('Hello World!')
+  res.send('hello world')
 })
+app.get('/error', async (req, res, next) => {
+  try {
+    throw 'my error'
+    res.send('never returned')
+  } catch(error) {
+    next(error);
+  }
+})
+const server = app.listen(3000, () => {
+  console.log(`listening: http://localhost:${server.address().port}`)
 
-app.listen(port, () => {
-  console.log(`Example app listening at http://localhost:${port}`)
+  // Test it.
+  function test(path, method, status, body) {
+    const assert = require('assert')
+    const http = require('http')
+    const options = {
+      hostname: 'localhost',
+      port: server.address().port,
+      path: path,
+      method: method,
+    }
+    http.request(options, res => {
+      console.error(res.statusCode);
+      assert(res.statusCode === status);
+      res.on('data', d => {
+        if (body !== undefined) {
+          assert(d.toString() === body);
+        }
+      })
+    }).end()
+  }
+  test('/', 'GET', 200, 'hello world')
+  test('/', 'POST', 404)
+  test('/dontexist', 'GET', 404)
+  // Shows 'my error' on terminal, without stack trace.
+  test('/error', 'GET', 500)
 })