javascript - Node.js application not serving static webpage without root path -

i writing simple application in node.js, reason error "typeerror: path must absolute or specify root res.sendfile" when trying serve html page. error shouldn't take place because used express middleware specifies folder file found. why getting issue?

my app structure looks this

myapp     public         login.html     app.js 

my html page being served in app.js this

var express = require("express"); var app = express();  app.use(express.static("public"));  app.get('/', function(req, res){     res.sendfile("login.html"); });  app.listen(3000); 

i know around this, can "res.sendfile(__dirname + '/public/login.html');" instead shouldn't have since using middleware. ideas?

this line

app.use(express.static("public")); 

does not think does!

it not set default folder every node function, in fact doesn't other node functions.

it says if webserver receives request, in folder first see if such file exists, , if so, serve file.

hence, it's route static files, used css , javascript files, , of course other static file doesn't serve dynamic content.

however, line

res.sendfile("login.html"); 

looks file login.html in current working directory, or in other words you're node script running, not have @ static route, in fact correct way file regardless of script running,

res.sendfile(__dirname + '/public/login.html'); 

as correct path, required sendfile find file.