The application's front-end (aka Client) is fully written using Vue CLI 4.4.6. I started the development of this new version of ChiassoTV starting from the PWA boilerplate provided by Vue CLI.
This boilerplate has already a configured ServiceWorker, usefull to cache files (or entire pages). lern more...
The HTTP request are sent to the REST APIs using Axios (a promise-based HTTP client for JavaScript)
The application's back-end is fully written in NodeJS, using the famous ExpressJS framework.
The front-end interacts with the server-side of the application using a series of REST APIs. These APIs are used to read and write data to the MySQL database. This operations are managed by Sequelize ORM:
Sequelize is a promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite and Microsoft SQL Server. It features solid transaction support, relations, eager and lazy loading, read replication and more.
To interact with certain REST APIs it's needed a JWT Token (send as Authorization header). This token is crypted using a RSA 256 key pair (the RSA keypair saved in this repository is just a sample).
JSON Web Token is an Internet standard for creating data with optional signature and/or optional encryption whose payload holds JSON that asserts some number of claims. The tokens are signed either using a private secret or a public/private key. https://en.wikipedia.org/wiki/JSON_Web_Token
Using ProcessManager2 the back-end's NodeJS application is started in cluster mode (with 8 clusters, 1 per thread).
The cluster mode allows networked Node.js applications (http(s)/tcp/udp server) to be scaled across all CPUs available, without any code modifications. This greatly increases the performance and reliability of your applications, depending on the number of CPUs available. Under the hood, this uses the Node.js cluster module such that the scaled application’s child processes can automatically share server ports. To learn more, see How It Works in the official Node.js documentation on the cluster module.
The website's back-end is currently hosted in a separated server.
| System | |
|---|---|
| OS | Ubuntu Server 18.04 (LTS) |
| RAM | 64 GB |
| CPU | Intel(R) Xeon(R) CPU E5-2640 v2 @ 2.00GHz x16 |
| Used softwares | |
| Node.js | v10.19.0 |
| PM2 (ProcessManager2) | v4.4.0 |
| Docker (MySQL server) | v19.03.8 |
In this README are described just some informations