Simple webserver that runs and replies with a `200` request to anything/everything.

return200.js

const express = require('express');
const app = express();

const bodyParser = require('body-parser');
// https://stackoverflow.com/questions/50908120/
const rawBodySaver = function (req, res, buf, encoding) {
  if (buf && buf.length) {
    req.rawBody = buf.toString(encoding || 'utf8');
  }
}

app.use(bodyParser.json({ verify: rawBodySaver }));
app.use(bodyParser.urlencoded({ verify: rawBodySaver, extended: true }));
app.use(bodyParser.raw({ verify: rawBodySaver, type: '*/*' }));

const printRequest = (req) => {
  const now = new Date();
  console.log(now, now.getTime());
  console.log(req.method, req.url);
  if (Object.keys(req.query).length > 0) {
    console.log('Query params ==============')
    console.log(req.query);
  }
  console.log('Headers ==================');
  console.log(req.headers);
  if (req.rawBody) {
    console.log('Raw Body ==================');
    console.log(req.rawBody);
  }
  if (Object.keys(req.body).length > 0) {
    console.log('Parsed (JSON/Form/etc) Body ==================');
    console.log(req.body);
  }
};

app.get('*', (req, res) => {
  printRequest(req);
  res.send('{"message": "Thanks!"}');
});

app.post('*', (req, res) => {
  printRequest(req);
  res.send('{"message": "Thanks!"}');
});

app.listen(12345, () => console.log('Example app listening on port 12345!'));

FYI - you may need to run npm install express before this will run on your system.

Note - you can run the server after you do the above install by running the command node return200.js