ably-js VS Express

Start by installing express, the vite-plugin-api package, and the Ably Javascript SDK:

The Node.js function needs to communicate with Ably in order to retrieve an authentication token. The Ably JavaScript client library will be used for this.

The Ably JavaScript SDK repository

In order to use token authentication in this way, we need to create an API somewhere, to call from the front-end, that has your real Ably API key stored in it. We can then use a function in the Ably SDK to exchange your real API key for a token that gets returned to the Ably JavaScript SDK. The Ably JavaScript SDK manages this token exchange process for you. When you provide a URL that points to an API that will return a token, the SDK will manage and refresh the token as required, so you don’t need to worry about it. This demo will walk through using AWS Lambda functions and the AWS API Gateway to achieve this.

Express: A lightweight framework for building web applications.

Now, we will create API using expressjs. When we created application using --ssr flag, the Angular CLI already took care of installing expressjs for us.

First, we import express. The Express framework allows us to create routes that will respond to webhook POST requests and serve an HTML file when a GET request is made to the root of the site.

Basic Knowledge of Express

Express.js Documentation

In the JavaScript ecosystem, there are guides for enabling SAML-based enterprise single sign-on in AdonisJS, Express.js, Next.js, Remix, and React with an Express.js backend.

Starting off strong with Express.js, the cool kid on the block for building web apps. It's lightweight, flexible, and doesn't throw a tantrum when you ask it to scale. With Express, you can handle HTTP requests like a pro, play around with middleware, set up routes without breaking a sweat, and render views that make your app look stunning. Big names like Netflix and Uber are already on board, and if it's good enough for them, it's definitely worth a peek.

express - one of the most popular middleware tools, lightweight and easy to learn. docs

Now we can install both Express and Socket.io libraries: