more node

Author: cirosantilli

README.adoc

@@ -21133,7 +21133,9 @@ Examples:
 * `class`
 ** link:rootfs_overlay/lkmc/nodejs/object_to_string.js[]: `util.inspect.custom` and `toString` override experiment: https://stackoverflow.com/questions/24902061/is-there-an-repr-equivalent-for-javascript/26698403#26698403
 ** link:rootfs_overlay/lkmc/nodejs/object_to_json.js[]: `toJSON` examples
+** link:rootfs_overlay/lkmc/nodejs/static.js[]
 * link:rootfs_overlay/lkmc/nodejs/http.js[]: `http` module to create a simple HTTP server: https://nodejs.org/api/http.html
+* link:rootfs_overlay/lkmc/nodejs/esm[]: https://stackoverflow.com/questions/58384179/syntaxerror-cannot-use-import-statement-outside-a-module
 
 ===== Node.js step debugging
 

rootfs_overlay/lkmc/nodejs/cjs/README.adoc

@@ -0,0 +1,7 @@
+#!/usr/bin/env node
+
+const assert = require('assert');
+
+const notmain = require('./notmain.js')
+assert(notmain.x === 1)
+assert(notmain.y === 2)

rootfs_overlay/lkmc/nodejs/cjs/main.js

@@ -0,0 +1,2 @@
+exports.x = 1;
+exports.y = 2;

rootfs_overlay/lkmc/nodejs/cjs/notmain.js

@@ -0,0 +1,11 @@
+#!/usr/bin/env node
+
+import { strict as assert } from 'assert';
+
+import anyname from './notmain.js'
+assert(anyname === 1)
+
+
+// Not possible, have to use import everywhere.
+//import notmain2 from './notmain2.js'
+//const notmain2 = require('notmain2');

rootfs_overlay/lkmc/nodejs/esm/README.adoc

@@ -0,0 +1,2 @@
+let a;
+export default a = 1;

rootfs_overlay/lkmc/nodejs/esm/main.js

@@ -0,0 +1 @@
+module.exports = {'notmain2': 2}

rootfs_overlay/lkmc/nodejs/esm/notmain.js

@@ -0,0 +1,5 @@
+{
+  "name": "esm",
+  "version": "1.0.0",
+  "type": "module"
+}

rootfs_overlay/lkmc/nodejs/esm/notmain2.js

@@ -1,13 +1,45 @@
 #!/usr/bin/env node
 
 const express = require('express')
-const app = express()
-const port = 3000
 
+const app = express()
 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)
 })