I think I'm missing something simple but I can't figure out why I can't navigate to the login page.
Views:
index:
extends layout
block content
h1= title
p Welcome to #{title}
a(href="/login.html") Login
login:
extends layout
block content
form(action="post")
input(type="text")
input(type="password")
input(type="submit", value="Login")
Login router:
var express = require('express');
var router = express.Router();
router.get('/login', function(req, res, next) {
res.render('login');
});
module.exports = router;
app.js:
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var indexRouter = require('./routes/index');
var loginRouter = require('./routes/login');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', indexRouter);
app.use('/login',loginRouter)
// catch 404 and forward to error handler
app.use(function(req, res, next) {
next(createError(404));
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
And I'm getting this error:
NotFoundError: Not Found
at C:\Users\alexi\VS code projects\ideology-project\server\app.js:27:8
at Layer.handle [as handle_request] (C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\layer.js:95:5)
at trim_prefix (C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\index.js:328:13)
at C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\index.js:286:9
at Function.process_params (C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\index.js:346:12)
at next (C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\index.js:280:10)
at C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\index.js:646:15
at next (C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\index.js:265:14)
at Function.handle (C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\index.js:175:3)
at router (C:\Users\alexi\VS code projects\ideology-project\node_modules\express\lib\router\index.js:47:12)
I found the cause of the problem. I put '/login' in the login router, while it must be '/' instead:
var express = require('express');
var router = express.Router()
router.get('/', function(req, res, next) {
res.render('login');
});
module.exports = router;
Related
I'm trying to set up a simple express project, and backend will be purely for api and frontend will be vue. I tried adding an api router, and not only does it not work, but even the root page doesn't work. I've not coded in express for a very long time, and wondering if some one could guide me on what's the problem? The error message is 404 NotFoundError: Not Found.
I'm navigating to localhost:3000, and I can see the call on the terminal, so port should be correct too?
/src/api/urls.js
var express = require('express');
var router = express.Router();
router.get('/', function(req, res) {
res.send('Just a test');
});
module.exports = router;
I didn't change the folder structure/naming for the original routes/index.js.
/src/routes/index.js
var express = require('express');
var router = express.Router();
router.get('/', function(req, res) {
res.send('Just a test');
});
module.exports = router;
And for the main file
/src/app.js
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var indexRouter = require('./routes/index');
var apiRouter = require('./api/urls');
var app = express();
app.use(require('connect-history-api-fallback')());
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', indexRouter);
app.use('/api', apiRouter);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
next(createError(404));
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
All good except endpoint url that should be with middleware function only. Modifying these should work,
/src/api/urls.js
var express = require('express');
var router = express.Router();
router.get('/api/test', function(req, res) {
res.send('Just a test');
});
module.exports = router;
/src/routes/index.js
var express = require('express');
var router = express.Router();
router.get('/api/test2', function(req, res) {
res.send('Just a test');
});
module.exports = router;
In app.js you should register your routes as,
// Routes
app.use([
require('./src/api/urls'),
require('./src/routes/index'),
]);
Access by url ( http://<yourhost>/api/test1 )
All js files packaged for the vue-cli2.9 version project report errors Uncaught SyntaxError: Unexpected token <
The following is the error message.
I am requesting a js file but returning me an html file
Below is my Node.js code
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var fs = require('fs');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.get('*', function (req, res) {
var html = fs.readFileSync(path.resolve(__dirname, './dist/index.html'), 'utf-8');
res.send(html);
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
app.listen(8081, function () {
console.log('Node服务启动...');
})
I am having the following data in js file:
let data =[
{id:1,type:"action"},
{id:2,type:"comedy"}
];
and trying to print it using pug template
doctype html
html
head
title= title
link(rel='stylesheet', href='stylesheets/style.css')
body
table
tr
th Id
th Type
each post in data
tr
td #{post.id}
td #{post.type}
block content
I get the error as "Cannot read property 'length' of undefined" at the each post line
app.js:
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var app = express();
let data =[
{id:1,type:"action"},
{id:2,type:"comedy"}
];
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', indexRouter);
app.use('/users', usersRouter);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
next(createError(404));
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
index.js:
var express = require('express');
var router = express.Router();
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index', { title: 'Movies' });
});
module.exports = router;
Try this:
index.js:
let data =[
{id:1,type:"action"},
{id:2,type:"comedy"}
];
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index', { title: 'Movies', data }); // you forgot passing the data array
})
Another solution is:
In the app.js, you could do this:
var app = express();
let data =[
{id:1,type:"action"},
{id:2,type:"comedy"}
];
app.locals.data = data; //added
Now you can access local variables in templates rendered within the application which mean you don't need to pass this data in the render() method
I'm following this Thinkster tutorial on building a reddit-esque web app using MEAN.
The tutorial instructs using curl to create a new post.
C:\root>curl --data "title=test&link=http://test.com" http://localhost:3000/posts
However, I get this error in response:
<h1>Not Found</h1>
<h2>404</h2>
<pre>Error: Not Found
at C:\root\app.js:30:13
at Layer.handle [as handle_request] (C:\root\node_modules\express\lib\router\layer.js:95:5)
at trim_prefix (C:\root\node_modules\express\lib\router\index.js:312:13)
at C:\root\node_modules\express\lib\router\index.js:280:7
at Function.process_params (C:\root\node_modules\express\lib\router\index.js:330:12)
at next (C:\root\node_modules\express\lib\router\index.js:271:10)
at C:\root\node_modules\express\lib\router\index.js:618:15
at next (C:\root\node_modules\express\lib\router\index.js:256:14)
at Function.handle (C:\root\node_modules\express\lib\router\index.js:176:3)
at router (C:\root\node_modules\express\lib\router\index.js:46:12)</pre>
I looked through those files, but all the references were just showing me what happens to the error...
Here's some code
/routes/index.js:
var express = require('express');
var router = express.Router();
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index', { title: 'Express' });
});
module.exports = router;
var mongoose = require('mongoose');
var Post = mongoose.model('Post');
var Comment = mongoose.model('Comment');
router.get('/posts', function(req, res, next){
Post.find(function(err,posts){
if(err){ return next(err); }
res.json(posts);
})
})
router.post('/posts', function(req,res,next){
var post = new Post(req.body);
post.save(function(err, post){
if(err){ return next(err); }
res.json(post);
})
})
/models/Posts.js:
var mongoose = require('mongoose');
var PostSchema = new mongoose.Schema({
title: String,
link: String,
upvotes: {type: Number, default: 0},
comments: [{type: mongoose.Schema.Types.ObjectId, ref: 'Comment'}]
});
mongoose.model('Post', PostSchema);
app.js:
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 index = require('./routes/index');
var users = require('./routes/users');
var app = express();
// 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(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', index);
app.use('/users', users);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
var mongoose = require('mongoose');
require('./models/Posts');
require('./models/Comments');
mongoose.connect('mongod:localhost/news');
I feel like I did everything correct, except I wasn't sure where to place the additional routes in the routes index file, and similarly in app.js. But this seems negligible to me. I performed all the debugging I could think of but am stuck.
It should also be noted that this tutorial was perhaps not intended for use on a Windows machine. I had to install curl and do a few other things that perhaps wouldn't be necessary on a Linux or Mac. I am using Windows 10.
Your module.exports is called prematurely in routes/index.js. Move module.exports = router; to the bottom of your file, recycle your service, and try again.
Also there are issues with app.js. See below:
app.js:
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');
// Notice the differences starting here
var app = express();
var mongoose = require('mongoose');
// connect MongoDB
mongoose.connect('mongodb://localhost/news', function(err,db){
if (!err){
console.log('Connected to /news!');
} else{
console.dir(err); //failed to connect
}
});
require('./models/Posts');
require('./models/Comments');
var index = require('./routes/index');
var users = require('./routes/users');
// 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(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', index);
app.use('/users', users);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
routes/index.js:
var express = require('express');
var router = express.Router();
var mongoose = require('mongoose');
var Post = mongoose.model('Post');
var Comment = mongoose.model('Comment');
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index', { title: 'Express' });
});
router.get('/posts', function(req, res, next){
Post.find(function(err,posts){
if(err){
alert(err);
return next(err);
}
res.json(posts);
})
})
router.post('/posts', function(req,res,next){
var post = new Post(req.body);
post.save(function(err, post){
if(err){
alert(err);
return next(err);
}
res.json(post);
})
})
module.exports = router;
I'm trying to install Ghost to my node app. I followed the configuration instructions and got it running with, however when I navigate to the blog subdirectory it just shows my site's homepage. I'm passing it the express app instance to start the server. What am I doing wrong?
var ghost = require('ghost');
ghost().then(function (ghostServer) {
app.use(ghostServer.config.paths.subdir, ghostServer.rootApp);
ghostServer.start(app);
});
I read online about running Ghost with ngynx or apache and configuring it to do some kind of proxy thing, but I don't really understand what all that's about.
Here is a working version of app.js for express and ghost subdirectory setup. Notice how your express routes need to be wrapped in the ghost.then() callback.
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 ghost = require('ghost');
var routes = require('./routes/index');
var users = require('./routes/users');
var app = express();
ghost().then(function (ghostServer) {
app.use(ghostServer.config.paths.subdir, ghostServer.rootApp);
ghostServer.start(app);
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', routes);
app.use('/users', users);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// 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;
const ghost = require('ghost')
const express = require('express')
const path = require('path')
const { getSubDir } = require('./node_modules/ghost/core/server/services/url/utils')
const app = express()
ghost().then((ghostServer) => {
app.use('/games', express.static(path.join(__dirname, 'games')))
app.use(getSubdir(), ghostServer.rootApp)
ghostServer.start(app)
})
latest howto included here:
https://docs.ghost.org/docs/using-ghost-as-an-npm-module