How avoid first argument must be a string or Buffer node js

Question

I try to put an html in a page in node.js and this is the code:

var http = require('http');
var fs=require('fs');

fs.readFile('C:\Users\Eventi\Desktop\Node.js\Progetti\ProveNodeJS\NodeJSProve\home.html', function (err, html) {
    if (err) {

    }       
    http.createServer(function(request, response) {  
        response.writeHeader(200, {"Content-Type": "text/html"});  
        response.write(html);  
        response.end();  
    }).listen(8000);
});

When I go at the url http://localhost:8000 I obtain the error first argument must be a string or Buffer node js . Anyone can help me?

mscdex · Accepted Answer · 2015-08-24 14:26:32Z

2

The reason is that your readFile() failed and err is set (html is probably undefined). You should fill in your if (err) {} block to do something useful when this is the case.

Also, the most likely reason for the error is that the backslashes are not escaped in your literal filename string. So instead you'll need:

'C:\\Users\\Eventi\\Desktop\\Node.js\\Progetti\\ProveNodeJS\\NodeJSProve\\home.html'

edited Aug 24, 2015 at 14:26

answered Aug 24, 2015 at 14:13

mscdex

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Comments

cviejo · Accepted Answer · 2015-08-24 14:13:20Z

1

Escape your path:

fs.readFile('C:\\Users\\Eventi\\Desktop\\Node.js\\Progetti\\ProveNodeJS\\NodeJSProve\\home.html', function (err, html) {

And try again.

answered Aug 24, 2015 at 14:13

cviejo

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