Express.js "must be absolute or specify root for res.sendFile" error

Question

NOTE. This is not a duplicate question; I have already tried other answers to similar questions.

I am trying to display html files (Angular) but I am having a problem. It works.

app.get('/randomlink', function(req, res) {
    res.sendFile( __dirname + "/views/" + "test2.html" );
});

But I don’t want to copy and paste the dirname thingy again and again, so I tried this so as not to repeat with the urls:

app.use(express.static(path.join(__dirname, 'public')));
app.use(express.static(path.join(__dirname, 'views')));

app.get('/randomlink', function(req, res) {
     res.sendFile('test2.html'); // test2.html exists in the views folder
 });

This is a mistake.

My express version 4.13

the path must be absolute or specify root for res.sendFile

Answer 1

You cannot go against the official res.sendFile () documentation

If the root parameter is not specified in the options object, the path must be an absolute path to the file.

, smth, __dirname, , :

function sendViewMiddleware(req, res, next) {
    res.sendView = function(view) {
        return res.sendFile(__dirname + "/views/" + view);
    }
    next();
}

,

app.use(sendViewMiddleware);

app.get('/randomlink', function(req, res) {
    res.sendView('test2.html');
});

Answer 2

- sendFile, :

if (!opts.root && !isAbsolute(path)) {
    throw new TypeError('path must be absolute or specify root to res.sendFile');
}

, root.

res.sendFile('test2.html', { root: '/home/xyz/code/'});

, path.resolve, .

var path = require('path');
res.sendFile(path.resolve('test2.html'));