how to set index.html to another page, not homepage - html

Question

I want to show index.html on special page '/chess', not on home page '/'.
Simple
app.get('/chess', function(req, res) {
res.sendFile(__dirname + '/public/index.html');
});
doesn't work.
I get the below error

Answer 1

To create more of the "game center" try the approach of making realchess a router that gets imported to the main app.js
below is how I was able to achieve the desired result
rename app.js to chess.js
chess.js
var express = require('express');
var app = express();
app.use(express.static('public'));
app.use(express.static('dashboard'));
var http = require('http').Server(app);
var io = require('socket.io')(http);
var port = process.env.PORT || 3000;
... rest of code ...
http.listen(port, function() {
console.log('listening on *: ' + port);
});
becomes
module.exports = function(server){
var express = require('express');
var app = express.Router();
app.use(express.static('public'));
app.use(express.static('dashboard'));
var io = require('socket.io')(server);
... rest of code ...
return app;
}
remove lines 145-147 and add module.exports = app;
create a new app.js
const express = require("express");
const app = express();
const http = require('http').Server(app);
const chess = require("./chess")(http);
const port = process.env.PORT || 3000;
app
.get("/", (req, res) => {
res.sendFile(__dirname + "/public/selector.html");
})
.use("/", express.static("public"))
.use("/chess",chess);
http.listen(port, function () {
console.log('listening on *: ' + port);
});
this will mound the chess router on the /chess directory, and allow you to mount a selector.html at /. Following a similar patter you could mount other games

Answer 2

Don't forget to declare the public director using use method.
app.use(express.static(__dirname + '/public'));

Answer 3

Using the code below i was able to remap
route '/chess' to serve index.html,
And
route '/' to serve select.html.
const express = require("express");
const app = express();
app
.get("/", (req, res)=>{
res.sendFile(__dirname + "/public/select.html");
})
.get("/chess", (req, res)=>{
res.sendFile(__dirname + "/public/index.html");
});
app.listen(3000, () => console.log("Example app listening on port 3000!"));
Can you post more of you application to see if there is another problem?