index.js

var express = require('express');
var serveIndex = require('serve-index');
var app = express();

app.use('/public', serveIndex('files')); // shows you the file list
app.use('/public', express.static('files')); // serve the actual files


app.get("/clear", function(req, res) {

const fs = require('fs');
const path = require('path');

const directory = '/motion';

fs.readdir(directory, (err, files) => {
  if (err) throw err;

  for (const file of files) {
    fs.unlink(path.join(directory, file), err => {
      if (err) throw err;
    });
  }
});
});
app.listen(8080);