. Advertisement .
..3..
. Advertisement .
..4..
I get the error message:
throw new TypeError('Router.use() requires middleware function but got a
^
TypeError: Router.use() requires middleware function but got a Object
/Users/datis/Documents/bb-dashboard/node_modules/express/lib/router/index.js:438
throw new TypeError('Router.use() requires middleware function but got a
^
TypeError: Router.use() requires middleware function but got a Object
at /Users/datis/Documents/bb-dashboard/node_modules/express/lib/router/index.js:438:13
at Array.forEach (native)
at Function.use (/Users/datis/Documents/bb-dashboard/node_modules/express/lib/router/index.js:436:13)
at /Users/datis/Documents/bb-dashboard/node_modules/express/lib/application.js:188:21
at Array.forEach (native)
at Function.use (/Users/datis/Documents/bb-dashboard/node_modules/express/lib/application.js:185:7)
at Object.<anonymous> (/Users/datis/Documents/bb-dashboard/app.js:46:5)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
Has anyone ever faced this problem? How to troubleshoot the “ router.use() requires a middleware function but got a object”. The problem is appearing when I try to operate the following program
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
var session = require('express-session');
var MongoClient = require('mongodb').MongoClient;
var routes = require('./routes/index');
var users = require('./routes/users');
var Users = require('./models/user');
var Items = require('./models/item');
var Store = require('./models/store');
var StoreItem = require('./models/storeitem');
var app = express();
//set mongo db connection
var db = mongoose.connection;
MongoClient.connect("mongodb://localhost:27017/test", function(err, db) {
if(!err) {
console.log("We are connected");
}
});
// var MONGOHQ_URL="mongodb://localhost:27017/test"
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
// uncomment after placing your favicon in /public
//app.use(favicon(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(session({
secret: 'something',
resave: true,
saveUninitialized: true
}));
app.use('/', routes);
app.use('/users', users);
app.use(express.static(path.join(__dirname, 'public')));
// catch 404 and forward to error handler
// app.use(function(req, res, next) {
// var err = new Error('Not Found');
// err.status = 404;
// next(err);
// });
// Make our db accessible to our router
app.use(function(req, res, next){
req.db = db;
next();
});
// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: err
});
});
}
// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: {}
});
});
module.exports = app;
The cause: This error happens because of missing router exports module
The solution: I think you should use
module.exports = router;
and that would workYou are missing any of your js pages
Verify all JS pages.