I have a nodejs app (NodeJs+ React+ MongoDb) deployed on heroku . I am connecting to mongoDb database using mLab , when i run npm start from heroku console it says App listening on PORT: 47147 and mongoose connection successfull . But when i take the app (https://sheltered-spire-71661.herokuapp.com) It displays nothing . What may be the reason ? Any help is appreciated .
Adding the screenshot of the heroku console
and log
UPDATE
FYI i run the Heroku app in local , and it works perfect without any problem . I don't know the problem when deploying in Heroku . Screenshot below
UPDATE 2
index.html
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>LMS</title>
<link rel="shortcut icon" href="/assets/images/favicon.ico" />
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.8/css/materialize.min.css">
<link rel="stylesheet" type="text/css" href="/assets/style.css">
<link rel="stylesheet" href="https://unpkg.com/react-tabs#2/style/react-tabs.css">
<link href="https://cdn.jsdelivr.net/npm/react-big-calendar#0.19.0/lib/css/react-big-calendar.css" rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-2.2.4.js" integrity="sha256-iT6Q9iMJYuQiMWNd9lDyBUStIq/8PuOW33aOqmvFpqI=" crossorigin="anonymous"></script>
<script src="https://use.fontawesome.com/8ff98e4aea.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.8/js/materialize.min.js"></script>
<script src="/assets/javascript.js"></script>
</head>
<body>
<div id="app"></div>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.7.7/babel.min.js"></script>
<script src="/bundle.js"></script>
</body>
</html>
When i have index.html like this in Heroku , its throwing me an error in console like
Uncaught SyntaxError: Unexpected token <
I thought its failing to understand the index.html file and i changed the bundle loader script like <script type="text/babel" src="/bundle.js"></script>
The error is gone but displaying blank page . Further i thought its not properly serving the static assets from this SO question Deploy to heroku : Uncaught SyntaxError: Unexpected token < . Then i taken view page source and checked files from the browser
and
<script src="/assets/javascript.js"></script>
and it was showing the code (https://my.herokuapp.com/assets/style.css and https://my.herokuapp.com/assets/javascript.js is working) . But when i access /bundle.js its redirecting back to the heroku app , unlike in local its showing the bundle js code . Express is serving static files like
//Landing
app.get("/", autoRedirect, function(req, res){
res.sendFile(path.resolve(__dirname, "public", "index.html"));
});
//Public files <this needs to stay right below app.get("/")!!!!
app.use(express.static(__dirname + "/public"))
Is it a problem of Heroku doesnt understand the bundle.js file ? I went to the Heroku app console and built the app once more with npm run build and the bundle.js is generated successfully , that also didn't made any changes to the app loader .
Related
I am trying to render the basic cesium viewer from a local development server using node.js with express (cesium 1.57 downloaded via npm). The page loads correctly when the CSS is loaded from cesium's servers, but not when I try to load it locally from my node_modules folder. I'd like to have the files server side so I can eventually change the display and certain sandbox settings for the infoboxes to suit the app I'd like to build.
This works:
index.html:
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>mapsTest</title>
<script src="/scripts/Cesium.js"></script>
<link href="https://cesiumjs.org/releases/1.57/Build/Cesium/Widgets/widgets.css" rel="stylesheet" />
<!-- <link type=text/css href='/styles/widgets.css'></link> -->
</head>
<body>
<div id="cesiumContainer" style="width: 100%; height:100%"></div>
<script>
Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJhYzhjNjk0My04MzNjLTQyZTItOWRkOS1lZmQxYjE2YzM4NDYiLCJpZCI6MTAyMTYsInNjb3BlcyI6WyJhc3IiLCJnYyJdLCJpYXQiOjE1NTU5NjMzNjB9.DSk7rCttQeOvYyCnuesEtoiA8OUSGwitJaiBUUeqlxw';
var viewer = new Cesium.Viewer('cesiumContainer');
</script>
</body>
</html>
While this doesn't work:
index.html:
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>mapsTest</title>
<script src="/scripts/Cesium.js"></script>
<!-- <link href="https://cesiumjs.org/releases/1.57/Build/Cesium/Widgets/widgets.css" rel="stylesheet" /> -->
<link type=text/css href='/styles/widgets.css'></link>
</head>
<body>
<div id="cesiumContainer" style="width: 100%; height:100%"></div>
<script>
Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJhYzhjNjk0My04MzNjLTQyZTItOWRkOS1lZmQxYjE2YzM4NDYiLCJpZCI6MTAyMTYsInNjb3BlcyI6WyJhc3IiLCJnYyJdLCJpYXQiOjE1NTU5NjMzNjB9.DSk7rCttQeOvYyCnuesEtoiA8OUSGwitJaiBUUeqlxw';
var viewer = new Cesium.Viewer('cesiumContainer');
</script>
</body>
</html>
app.js: setting up the routes for getting the local css file
app.use('/styles', express.static(__dirname + '/node_modules/cesium/Build/CesiumUnminified/Widgets'));
app.get('/styles/widgets.css', function(req, res) {
res.sendFile(__dirname + '/node_modules/cesium/Build/CesiumUnminified/Widgets/widgets.css');
});
I've tried copy and pasting the code that is pulled from the cesium css link into my local copy of widgets.css, though it still doesn't work, so I am wondering whether this has something to do with how node/express loads css files? There are no errors in the firefox or chrome consoles when I load the page.
I think you might just be missing rel="stylesheet" in the link there.
Also type="text/css" is missing the double-quotes.
I have this project structure:
app
server.js
frontend
build
index.html
build directory is the result after npm run build in my React app (created with create-react-app). There are more files but I omit them for the example.
I want to serve the React app as static files, so in server.js, I have this:
app.use(express.static(path.resolve(__dirname, 'frontend/build')));
app.get('*', (req, res) => {
res.sendFile(path.resolve(__dirname, 'frontend/build', 'index.html'));
});
app.listen(9001);
I navigate to http://localhost:9001 in my browser and there are no errors but the screen is blank. React app is not shown.
If I run the React app (from inside frontend directory) with npm start, it works properly (in default webpack port 3000).
This is the build/index.html file (pretty printed):
<!DOCTYPE html>
<html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no">
<meta name="theme-color" content="#000000"><link rel="manifest" href="/manifest.json">
<link rel="shortcut icon" href="/favicon.ico">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"/>
<title>React App</title><link href="/static/css/main.65027555.css" rel="stylesheet"></head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
<script type="text/javascript" src="/static/js/main.a4d4d402.js"></script>
</body>
</html>
If I navigate to http://localhost:9001/static/js/main.a4d4d402.js, I can see the javascript file.
I found the error. There was an error in the bootstrap imports in index.html. I was closing a tag twice. In my question looks well because I have pretty printed by hand and maybe I have corrected it somehow.
I've been trying to use express-ejs-layouts module.
My when I try second route, browser finds my JS and CSS resource file under my second EJS files -that was written by me into second route function.
What should I do?
My Layout appears properly with my first route process like the following.
my first route;
app.get('/', function(req, res) {
res.render('home/index');
});
my layout.ejs file;
<!DOCTYPE html>
<html lang="tr">
<head>
<link rel="stylesheet" href="bootstrap/css/bootstrap.css">
<link rel="stylesheet" href="css/styles.css">
</head>
<body>
<% include navbar %>
<%- body %>
<script src="js/jquery.js"></script>
<script src="bootstrap/js/bootstrap.js"></script>
</body>
</html>
So far everything is good. My resource files (css and js) linked and I can see my home/index.ejs properly. And then I try my second route like the following;
my second route;
app.get('/user/:id', function(req, res) {
res.render('user/index');
});
My browser console gives the below errors;
Failed to load resource: the server responded with a status of 404
(Not Found) http://localhost:1337/user/bootstrap/css/bootstrap.css
Failed to load resource: the server responded with a status of 404
(Not Found) http://localhost:1337/user/css/styles.css
Failed to load resource: the server responded with a status of 404
(Not Found) http://localhost:1337/user/js/jquery.js
Failed to load resource: the server responded with a status of 404
(Not Found) http://localhost:1337/user/bootstrap/js/bootstrap.js
Express needs a 'public' named folder to check resources. So I've put my resources files into a ".../public/" folder, rewrote src link and I got succeed.
I've defined a new static path;
app.use(express.static(__dirname + '/public'));
An then I changed my new layout.ejs file like the below;
<!DOCTYPE html>
<html lang="tr">
<head>
<link rel="stylesheet" href="/css/bootstrap.css">
<link rel="stylesheet" href="/css/styles.css">
</head>
<body>
<% include navbar %>
<%- body %>
<script src="/js/jquery.js"></script>
<script src="/js/bootstrap.js"></script>
</body>
</html>
I have a polymer 0.10+ web app that works in Dartium (Dart VM) and worked until Polymer 0.10.0-pre.12.
When I compile it to JS (Pub Build) and run it as JS under Google Chrome, my polymer (big) component doesn't appear and I have this message in console :
"Resource interpreted as Script but transferred with MIME type application/dart: "127.0.0.1:8080/cvwebkit.html_bootstrap.dart". cvwebkit.html:295"
line 295 : <script type="application/dart" src="cvwebkit.html_bootstrap.dart"></script></body></html>
When I change this line to <script src="cvwebkit.html_bootstrap.dart.js"></script></body></html> in cvwebkit.html in the build directory, it works.
When I launch directly the modified file, I have this url and it works (at least partially) 127.0.0.1:3030/CVWebkit/WebApp/build/web/cvwebkit.html
When I launch normally the "dev" file as JS, I have the above issue with this url : 127.0.0.1:8080/cvwebkit.html
My "head" :
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CVWebKit</title>
<link rel="stylesheet" href="cvwebkit.css">
<link rel="import" href="packages/polymer/polymer.html">
<link rel="import" href="imgdyn.html"> <!--to ensure dynamic assets are created by polymer, so that there is no attempt first by the browser-->
<link rel="import" href="cvwebkitscript.html"> <!--needed to include the link to the dart script as we can't use both "src" and "export" in the script line-->
<link rel="import" href="zone-ruban.html">
<script type="application/dart">export 'package:polymer/init.dart';</script>
</head>
Any idea ?
Posting here as requested original post can be found here
Hello, I would like to build ember.js using Ubuntu 13.
I have cloned the official Github project, cd into the project and as described in the readme file I did:
bundle install
rake dist
no error is shown on screen and as a result I get a directory shown in the image
I would like to use ember and ember-data, so I include
ember.js
ember-data-deps.js
files in my test project.
The problem is that I am getting a TypeError: App.Router is undefined
I am using this at my client.js file to init ember
this.App = Ember.Application.create();
App.Router.map(function() {
this.route('contributors');
this.route('contributor', {path: '/contributors/:contributor_id'});
});
Am I doing something wrong in the build process?
Should I include some other js files in my project?
Thank you in advanced.
The TypeError: App.Router is undefined error is because ember.js is not loaded correctly or in the correct order.
To get ember-data (that is separate from ember.js) you have to clone this repo (https://github.com/emberjs/data) and follow the build instructions in the readme file, it's straight forward, and once you have the dist directory from the ember-data build process get the file ember-data.js development version or ember-data.min.js for production (well, production... ember-data is still considered unstable for production environments).
here is a simple ember project setup using ember-data:
index.html
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title>ember app</title>
</head>
<body>
<script type="text/x-handlebars">
hello world!
</script>
<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<script type="text/javascript" src="http://builds.emberjs.com.s3.amazonaws.com/handlebars-1.0.0-rc.3.js"></script>
<script type="text/javascript" src="http://builds.emberjs.com.s3.amazonaws.com/ember-latest.js"></script>
<script type="text/javascript" src="http://builds.emberjs.com.s3.amazonaws.com/ember-data-latest.js"></script>
<script type="text/javascript" src="app.js"></script>
</body>
</html>
app.js
var App = Ember.Application.create({
ready: function () {
console.log("app started...");
}
});
hope it helps