How to deploy flutter web on server? - dart

Question

I was learning Flutter web. Now I want to deploy this code in the real server.
The flutter code here: in the lib folder
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter layout demo',
home: Scaffold(
appBar: AppBar(
title: Text('Flutter layout demo'),
),
body: Center(
child: Text('Hello World'),
),
),
);
}
}
How can I deploy this code on the server ? I am new on the Flutter web.

Answer 1

[UPDATE]
To create a production build for web, you can now directly run flutter build web command similar to other platforms (android and ios)
and you will see build/web folder generated with the assets folder and you can simply deploy it on your server.
[OLD ANSWER STEP 1 & 2 No longer required ]
you need to do a production build by using a webdev tool,
To install webdev you need a pub tool.
so go to the location where you have dart SDK installed and inside the bin folder you should have a pub batch file. You need to provide the bin folder's path to the environment variable in order to use pub from cmd.
open cmd/terminal run the below command to install webdev
pub global activate webdev
now go to the root folder of your project and do a build in release mode
flutter build web
you should see a build folder (/build/web) in the root directory, just copy that folder and host it on a web server.
I used the same way to deploy it to GitHub pages here's how in detail guide.
Some useful link: https://dart.dev/tools/webdev#build
Here's the running flutterweb app

Answer 2

You can deploy your flutter web app in a shared hosting with Nodejs or in VPS server with Python Follow this Medium Blog Post
After you build your flutter web app with "flutter build web" and you want to host it in a shared hosting plan prepare your nodejs app as a simple server for your flutter web app here is sample code
app.js
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var app = express();
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-flutter')));
module.exports = app;
package.json
{
"name": "flutter-web-app",
"version": "0.0.0",
"private": true,
"scripts": {
"start": "node ./bin/www"
},
"dependencies": {
"cookie-parser": "~1.4.4",
"debug": "~2.6.9",
"express": "~4.16.1",
"morgan": "~1.9.1"
}
}
Create a folder and name it (“public-flutter”) and then put your flutter web app in the folder you have just created so nodejs can serve it through his server if you are in a shared hosting just continue with the Blog Post here
and if you are in a VPS server then run this command if you want to server the nodejs app
node app.js
or if you don't want nodejs just use python in your flutter web app to serve it as a simple http server with this command
nohup python -m SimpleHTTPServer 8000 &
Just make sure you are in your web app folder when you run the command. “nohub” will let the command keep running even if you closed the SSH session on Linux .
Or you can server your app through Dart pub/webdev tools by using the dhttpd package.

Answer 3

if you want to use your own server over web e.q your virtual private host or other host over net :
go to the root folder of your project and do a build in release mode flutter build web,then
upload (/build/web)directory to your server ,
you can follow this link and configure IIS on windows server.

Answer 4

Here is the simple way to deploy your flutter web application on amazon web server.
Following is the simple process i follow.
Build flutter web: flutter build web —release
Create instance on aws ec2 server: mean allocate some memory for
your website on server. Instance is the virtual server in aws cloud.
Connect to your server(instance) with the help of putty :
Install Vesta control panel on your server. (you can install other control panel
too if you don't like vesta).
Upload your content(website) on server.(With the help of
FileZilla you can easily upload
your website content on server)
Here is the simple video tutorial:
https://youtu.be/htuHNO9JeRU

Answer 5

Nota Bene - Using flutter 2.0 as of today, I am seeing a bug where the images are not uploaded. Performance is also not the best as of
today. Bookmark this and I will update with workarounds.
One solution for those who use VPS/Shared hosting of any kind:
Open the local build folder
Compress (zip) the web folder
Upload the web.zip file (ftp or file manager)
On your server (for example on cPanel choose Extract from the File
Manager)
Rename the web folder to whatever you like
Note that if you are not using the website's root directory you must rename the
folder in index.html from "/" to "/web/" (to match the name above, see eg.)
If you are using the website root folder make sure you move all the files
from inside of /web into your / website's root folder (not your
server)
eg.
<base href="/"> to <base href="/web/">
Update for missing images issue
tldr; Two issues - In pubspec.yaml I forgot to uncomment the assets folder and when built for web, the images were placed one
folder below the assets folder. Editing the pubspec.yaml and moving
the images folder up one level (after building for the web) solved the
issue.
My flutter project folder has an assets/images folder in the project root. After not seeing the image online (it was visible during debugging), I found that running flutter build web --release caused my assets folder to be recreated within build/web/assets/assets/images. My code correctly referenced assets/images/file.png. I just moved the images folder up one level when deploying to the web. So my web server root now has assets/images/name.png and the image is showing fine.
Solution - The fix for this was to use the proper structure for assets which is to create top level folders for (images and
google_fonts) in the flutter project root. Then the compiler builds
the web project correctly. My code references image assets as
images/name.png. Pubspec.yaml should reference the assets: as
- images/ and - google_fonts/

Answer 6

If it's a Firebase project you can use Firebase Hosting.
It will ask you to install Firebase Tools on your system and you will have to initialize it on the root folder of your project.
Then you just have to:
flutter build web
firebase deploy
and refresh browser (maybe with ctrl + F5 or ctrl + shift + r)