How to allow client to access any static file from Node.js + Express server?

This is my index.js file called as node.js server :

var express = require('express');
var app = express();
const PORT = process.env.PORT || 5000;
var serv = require('http').Server(app);
app.get('/', function(req, res) {
res.sendFile(__dirname + '/client/index.html');
});
app.use('/client', express.static(__dirname + '/client'));
serv.listen(PORT);


I'm developping a client app with Angular, when I build the application, I get many files for client. I put them on client repertory.

To allow client to access to these files, I added this code :

app.get('/main-es5.js', function(req, res) {res.sendFile(__dirname + '/client/main-es5.js');});
app.get('/main-es2015.js', function(req, res) {res.sendFile(__dirname + '/client/main-es2015.js');});
app.get('/polyfills-es5.js', function(req, res) {res.sendFile(__dirname + '/client/polyfills-es5.js');});
app.get('/polyfills-es2015.js', function(req, res) {res.sendFile(__dirname + '/client/polyfills-es2015.js');});
app.get('/runtime-es5.js', function(req, res) {res.sendFile(__dirname + '/client/runtime-es5.js');});
app.get('/runtime-es2015.js', function(req, res) {res.sendFile(__dirname + '/client/runtime-es2015.js');});
app.get('/styles-es5.js', function(req, res) {res.sendFile(__dirname + '/client/styles-es5.js');});
app.get('/styles-es2015.js', function(req, res) {res.sendFile(__dirname + '/client/styles-es2015.js');});
app.get('/vendor-es5.js', function(req, res) {res.sendFile(__dirname + '/client/vendor-es5.js');});
app.get('/vendor-es2015.js', function(req, res) {res.sendFile(__dirname + '/client/vendor-es2015.js');});

app.get('/main-es5.js.map', function(req, res) {res.sendFile(__dirname + '/client/main-es5.js.map');});
app.get('/main-es2015.js.map', function(req, res) {res.sendFile(__dirname + '/client/main-es2015.js.map');});
app.get('/polyfills-es5.js.map', function(req, res) {res.sendFile(__dirname + '/client/polyfills-es5.js.map');});
app.get('/polyfills-es2015.js.map', function(req, res) {res.sendFile(__dirname + '/client/polyfills-es2015.js.map');});
app.get('/runtime-es5.js.map', function(req, res) {res.sendFile(__dirname + '/client/runtime-es5.js.map');});
app.get('/runtime-es2015.js.map', function(req, res) {res.sendFile(__dirname + '/client/runtime-es2015.js.map');});
app.get('/styles-es5.js.map', function(req, res) {res.sendFile(__dirname + '/client/styles-es5.js.map');});
app.get('/styles-es2015.js.map', function(req, res) {res.sendFile(__dirname + '/client/styles-es2015.js.map');});
app.get('/vendor-es5.js.map', function(req, res) {res.sendFile(__dirname + '/client/vendor-es5.js.map');});
app.get('/vendor-es2015.js.map', function(req, res) {res.sendFile(__dirname + '/client/vendor-es2015.js.map');});


Without this large block of code, client seems not to have access to it.

How can I refactor it?

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