deploying angular universal on node.js express server - node.js

angular universal(angular or angular-cli) can be create three part:
browser folder
ng build --prod to generated static file
server folder
A server bundle by script(bundle)
server.js
webpack bundle serve (bundle)
Run node dist/server.js can be work on localhost:4000.
But when I have a node.js(express) server, how can I deploy these files?
If I only have one file by ng build --prod, I can deploy it on node.js like this.
app.js:
app.get('/*', (req, res) => {
res.sendFile(path.join(__dirname, 'public', 'dist/index.html'));
});

The bundle has its own express embedded, so just start it like you did on your own machine with node server.js.
The recommended way is to use a process manager like pm2. If you want to use pm2, install it with npm i -g pm2 then start your server as a pm2 process with pm2 start server.js

Related

How to deploy React application to Heroku

I have built a single-page weather app with React and Node.js but can't seem to get it to deploy to Heroku. So far, I have:
Created a new app on Heroku called weather-app-react-node
Logged into Heroku on the CLI
Run the command 'heroku git:remote -a weather-app-react-node' in my terminal
Added a Procfile with 'web: npm start' in it
Ran 'git add .', 'git commit -m "Pushed to heroku"', 'git push heroku master'
My terminal tells me it is deployed and waiting but when I click on the link, I get this error message:
SecurityError: Failed to construct 'WebSocket': An insecure WebSocket connection may not be initiated from a page loaded over HTTPS.
I've tried to google it but can't seem to find anything relevant to my situation. Anyone know how to fix it?
heroku-site: https://weather-app-react-node.herokuapp.com/github: https://github.com/caseycling/weather-app
To deploy the React app to Heroku, I performed the following steps...
1. In your terminal, enter npm -v and node -v to get your npm and node version. In my case, my npm version is 6.14.1 & my node version is 12.13.0.
2. In package.json, add "main": "server.js", and "engines": { "npm": "6.14.1", "node": "12.13.0" }, under the "private" property. In your scripts property, add "heroku-postbuild": "npm install" and set "start" to "node server.js".
3. In the root directory, create a Procfile with one line of text: web: node server.js.
4. In the root directory, create the server.js file with the below code..
const express = require("express");
// eslint-disable-next-line no-unused-vars
// const bodyParser = require('body-parser');
const path = require("path");
const app = express();
const port = process.env.PORT || 8080;
app.use(express.static(path.join(__dirname, "build")));
// This route serves the React app
app.get('/', (req, res) => res.sendFile(path.resolve(__dirname, "build", "index.html")));
app.listen(port, () => console.log(`Server listening on port ${port}`));
5. Enter npm run build in the terminal to produce the build directory. Next, remove (or comment out) /build from .gitignore file (in root directory).
6. Test if server.js works by entering node server.js (or nodemon server.js) in the terminal. If it works, server.js should serve the React app.
7. Commit everything from step 1-6 to GitHub and Heroku repository. To commit to Heroku repository, in your terminal, enter heroku git:remote -a weather-app-react-node and afterward, enter git push heroku master.
You can try logging in to heroku directly and deploy your github repository's desired branch from there directly.
I used create-react-app-buildpack
npm install -g create-react-app
create-react-app my-app
cd my-app
git init
heroku create -b https://github.com/mars/create-react-app-buildpack.git
or
heroku create -b mars/create-react-app
git add .
git commit -m "I am the newborn app"
git push heroku master
heroku open
Note: In my case, buildpack config from CLI did not work, I still had nodejs-build pack, so I manually changed the build pack to mars/create-react-app in the Heroku project dashboard
The best practice to push React apps to Heroku with a node js backend is to use the Heroku Post Build Script, The post build will take care of all the work under the hood
Follow the steps below
Add This below snippet to your package.json under the scripts
scripts{
"heroku-postbuild": "NPM_CONFIG_PRODUCTION=false npm install --prefix reactFolderName && npm run build --prefix reactFolderName"
}
And add this snippet to your index.js file
app = express()
app.use(express.static('reactFolderName/build'));
app.get('*', (req, res) => res.sendFile(path.resolve(__dirname, 'reactFolderName', 'build', 'index.html')));
After I set up the all the things above mentioned I'm facing this issue.
When I'm using the URL like http://localhost:8080/ & http://localhost:8080/button
Cannot GET /button
In Console
Failed to load resource: the server responded with a status
of 404 (Not Found)
DevTools failed to load source map: Could not load content
for chrome-
extension://gighmmpiobklfepjocnamgkkbiglidom/browser-
polyfill.js.map: System error: net::ERR_FILE_NOT_FOUND

How to create Node.js Express app serving a Vue.js SPA?

I'm trying to set up a Node.js project that uses Express to provide a few backend APIs and serve a SPA built with Vue.js.
When I use the Vue cli to initialize a project, I get e.g. src/main.ts main file and commands npm run serve to run a dev server and watch for changes and npm run build to build a production release.
When I use the Express application generator to create a project, I get ./app.js main file and npm start to start the server and watch for changes.
How can I combine these into a single project, both served by the same Express server? Preferably so that a single command would watch + update changes to both server and client? I want to use Vue single file components and TypeScript, which (probably?) require a build step.
(I don't need dynamic server-side rendering of Vue templates, just the static SPA app provided. I prefer TypeScript, but JavaScript answers are fine as well.)
These will be different for your dev and prod environments...
For development look into concurrently - it basically allows you to create a single script in your package.json to start both the client and server concurrently and will watch for changes etc...
For production, you would need something like this in your app.js:
if (process.env.NODE_ENV === 'production') {
app.use(express.static('client/build'));
const path = require('path');
app.get('*', (req, res) => {
res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'));
});
}
(The code above assumes that your directory structure has a client folder with a build folder after having run npm run build I'm more familiar with React than Vue... but the logic should be the same...)

Starting Angular application as a default of a NodeJS project

I have a NodeJS application and an Angular 6 as a frontend.
The project looks like:
-> Node Project
---> src
---> Client_App (Anuglar)
To run the application, I need to follow those commands and start the server and angular separately, like:
-> node start
-> cd src/Client_App
-> ng serve
I need to start the two application with one single command or to add my dist file of Angular to be run at the start of my NodeJS, which is using Jade right now.
I am still new to NodeJS and still don't know how to configure it.
Anybody can help? Thanks
Edited:
I have tried now to add the dist folder to my views folder and run it within the app.js
app.get('/', function (req, res, next) {
res.sendFile(path.join(__dirname + '/app_server/views/ngapp/index.html'));
});
But I am receiving the error, that my .js and .css folders are not found:
When you build your application with the CLI ng build --prod, you get a dist folder : this folder contains all of your application, bundled into different files (feel free to look at them).
To be able to create a .ZIP file with that, you will need two things :
this dist folder
an http server
You have the first one, but not the second one.
All you need is a very simple server. For instance, http-server on NPM can do that. By installing it as a dev dependency, you could create a command in your package.json file
"deploy-locally": "http-server ./dist"
And now run it with
npm run deploy-locally
Or even better,
"start": "http-server ./dist"
And run with
npm start
If you don't want to use a NPM package (or forced to use NodeJS), simply create a basic http server in a JS file and run it with your command line (sorry, can't help on that, not into nodeJS right now).
You can create a new route and pass in app.route as express.static as below,
var express = require('express');
var path = require('path');
var bodyParser = require('body-parser');
var app = express();
app.use(express.static(path.join(__dirname, 'dist')));
make sure, u have build version of angular application by running this command,
ng build --prod --build-optimizer
You would need express to install in this case. express has amazing ways to handle all this

Serving Node Server and Angular 4 application in one command

I am starting a new project which is using Angular 4 for frontend designing and the application will need some rest api's for which I have decided to use node. I am using angular cli for creating angular app and I know how to create angular app and node server but I want to know how will I connect these two things such that when I do ng serve both the server and angular app gets compiled and run. What basic changes in the project structure or some file is needed to be done?
I'm currently building a full-stack Angular app with a Node/Express backend and was wondering the exact same thing. However, despite what that scotch.io tutorial tells you, creating both the Express server and the Angular app in the same directory is NOT the best way to go about it.
What you want to do is set up your Express server in one project and serve it in one terminal window, then serve your Angular app in a separate terminal window but have it point to your locally-running Express server instead of the default dev server that's included with the Angular CLI (the ng-serve command).
Here's a Stack Overflow answer and also a Medium article that answered all of my questions for how to set this up (fortunately, it's not too hard).
Here's what I did Shubham. I went into the Angular-Cli and changed "outDir": to "../public"in other words it will look like "outDir": "../public". The ../public folder is my Express static folder set in my app.js file with app.use(express.static(path.join(__dirname, 'public')));
Keeping in mind I have nodemon installed globally, and in my package.json file, "start": "node app" I simply run nodemon from this dir to start my server and both Angular and Express run on the same server.
I have seen some people say it's not good to run static filed on the Node/Express server, but for development I'm not sure it matters. Although I'm a novice when it comes to js frameworks etc. Here's the project files on my github acct: https://github.com/chriskavanagh/angularauth.
Edit: You must run ng-build (in your Angular dir) whenever you change code.
First, in Angular project do ng build, it will create dist folder (static folder).
Second step, paste the following code in backend servers entry point file.
app.use(express.static(path.join(__dirname, 'dist/')));
app.get('*', (req, res) =>{
res.sendFile(path.join(__dirname, 'dist/index.html'));
});
And after the above thing is done run backend server: node filename
Note: in give proper path where your index.html file is located in dist folder.
The node server and the Angular app are two different things.
In order to run the node server you should use the command:
node ServerName.js
In order to run the angular app you should use the command:
npm start OR ng serve
In your case, the connection between the two is made by http requests.
For example you could use 'express' in order to implement rest services in your node server and then send an http request to the server in the current route.

unable To connect in Node js

I just started learning Node js, First I installed node,npm, express
I want to work in npm, but I don't know how to start. The command I gave in terminal was
sh-4.2$ cd new/
sh-4.2$ express new-project
sh-4.2$ cd new/
sh-4.2$ express new-project
sh-4.2$ node app
But I was not able to connect in localhost:3000
I dislike automatic project generators so here is how to create a new express project manually.
Create new folder:
mkdir myNewApp
cd myNewApp
Create a new package.json (makes managing dependencies much easier) - just press enter to all questions, you can change these things later:
npm init
Install express and save it in our package.json:
npm install express --save
Create our main server file:
touch server.js
And paste the following:
var express = require('express'),
server = express();
server.get('/', function (req, res) {
res.send('hello world');
});
server.listen(3000);
Now start it:
node server.js
And visit http://localhost:3000 in your browser.
Try this command in your project folder after you've generated the project:
node bin/www
The code to run the server is placed in this file.

Resources