Nodejs express listener must be a function

Question

I am using the following code to set up an express project, but I get an exception: TypeError: listener must be a function

var fs = require('fs');
var express = require('express');
var privateKey  = fs.readFileSync('C:/Node/cert/sn_com.key', 'utf8');
var certificate = fs.readFileSync('C:/Node/cert/sn_com.cer', 'utf8');
var credentials = {key: privateKey, cert: certificate};
var app = express();
var server = require('https').createServer(app, credentials);
server.listen(8001);

I don't understand why

Parameters to `createServer` ,in the second last line, should be in reverse order. — Pratik Gaikwad, Jun 05 '17 at 14:47
if it helped, please accept as answer so that it can help some one later on — Pratik Gaikwad, Jun 05 '17 at 15:50

score 1 · Accepted Answer · answered Jun 05 '17 at 14:50

1

The order of parameters to createServer should be reversed. First credentials and the express app.

answered Jun 05 '17 at 14:50

Pratik Gaikwad

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Nodejs express listener must be a function

1 Answers1