feat(express-post-cors): initial commit

express-post-cors/index.js

@@ -0,0 +1,65 @@
+const debug=require('debug')('debug');
+
+//start
+debug('api start...');
+
+/*Express makes it easy to register route handlers for POST requests. Here's a basic POST request handler.*/
+const express = require('express');
+
+const app = express();
+
+//TODO make this list available via config
+//limit access to this origin list
+let whitelist = [
+    'http(s)://foo.bar',
+    'http://localhost:8080'
+];
+
+//configure CORS
+const cors = require("cors");
+app.use(cors({
+    origin: function(origin, callback){
+        // allow requests with no origin
+        debug('origin: '+origin)
+        if(!origin){
+            return callback(null, true);
+        }
+        if(whitelist.indexOf(origin) === -1){
+            let message = 'The cors policy for this origin does not allow access from the particular origin: '+origin;
+            return callback(new Error(message), false);
+        }
+        debug('origin: '+origin+' allowed by cors');
+        return callback(null, true);
+    }
+}));
+
+// Parse JSON bodies for this app. Make sure you put
+// `app.use(express.json())` **before** your route handlers!
+app.use(express.json());
+
+/*
+app.post('/', function requestHandler(req, res) {
+    console.log('post() start...');
+    res.end('Hello, World!');
+    console.log('post() done.');
+});
+*/
+
+app.post('*', (req, res) => {
+    console.log('post() req.body: ' + JSON.stringify(req.body));
+    //const answerBody = { answer: 42};
+    //req.body; // JavaScript object containing the parsed JSON
+    //res.json(req.body);
+    //res.json(answerBody);
+    res.sendStatus(200);
+});
+
+const server = app.listen(3000, 'localhost', () => {
+    const host = server.address().address;
+    const port = server.address().port;
+
+    console.log('listen() running at http://%s:%s', host, port);
+});
+
+//end
+debug('api done..');

express-post-cors/package.json

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+{
+  "name": "express-post-cors",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Stefan Begerad",
+  "license": "GPL-3.0-or-later",
+  "dependencies": {
+    "cors": "2.8.5",
+    "debug": "^4.3.4",
+    "express": "4.18.2"
+  }
+}