SvelteKit VS Express

For our application, I wanted to spin up a simple framework example app, so I went with SvelteKit. It’s easy to bootstrap, and it has a smooth looking getting started application. I followed the instructions here to initialize a new project:

Svelte y SvelteKit

Frontend: SvelteKit project used as a SSG

Link

Welcome to SvelteKit /> /> /> Visit href="https://kit.svelte.dev">kit.svelte.dev to read the documentation

Only, if you're going to write a fullstack app and have server rendered or statically rendered pages, you'll most likely use a meta framework like NextJs, Remix, SvelteKit, SolidStart.

I was working on a SvelteKit based local cloud project. I know that there are already solutions out there that work out of the box, but I want to try and build my own version from scratch. One of the key features is the file uploading and I had a tough time collecting all the information piece by piece. So, I hope that you find my solution helpful.

This article is all about simplifying your path to web development. We will build amazing websites with as little effort as possible with SvelteKit, a tool akin to your coding friend. We will quickly set things up, create a basic site with little coding, and easily turn it into a Progressive Web App (PWA).

SvelteKit: https://kit.svelte.dev

- The starter template is like a collection of web dev best practices.

- The community is great. Beginners should ask a lot of questions, and the Svelte community is pretty good at trying to help them.

- The DX is wonderful.

I'm building this with Kit: https://weather-sense.leftium.com

The only caveat: if your goal involves finding employment choose React (Next.js) because there are way more openings.

Node.js con Express.js

uWebSockets is web server written in C++. In our case we'll be using uWebSockets.js which has bindings to NodeJS. It can be used as a usual web server but the main feature is its WebSocket server. It is 10x faster than Socket.IO and 8.5x faster than Fastify. I have to say I haven't benchmarked it myself. I decided to use uWebSockets just because it feels more pure to my taste. For example it doesn't require Express it runs on it's own, also it doesn't have any additional wrappers or helper functions that "babysit" you. You just get a message and you handle it whatever the way you want it. So if you're ok with that approach and you need a faster WebSocket server then you should use uWebSockets.

Because we were talking about HTTP server frameworks, it seemed not that problematic to mention one of the most surprising things I've seen in this space. Not necessarily JS bashing, but sorry for that anyway.

I'm surprised to see that it's now gone too! The exact commit is [1], which happened before Express.js 4.7, and you can search for the variable name `arity` in any previous versions to see what I was talking. It seems that my memory was slightly off as well, my bad. The correct description would be that older versions of Express.js used to distinguish "error" callbacks from normal router callbacks by their arities, so `(req, res)` and `(req, res, next)` would have been okay, while any extra argument added by an accident will effectively disable that callback without any indication. It was a very good reason to be surprised at that time.

[1] https://github.com/expressjs/express/commit/76e8bfa1dcb7b293...

Express.js is excellent for small projects or prototypes, which will be replaced later.

ExpressJS - web server

More frameworks! This one is for Node.js applications, and is designed to be minimalist. There are tonnes of changes to the latest version of Express, including new document beta releases expectations, a new threat model, added CodeQL (SAST), support for Node 22, and lots more. Check out all the changes, as well as new contributors, in the Express release notes.

Express - a flexible foundation for building our Node.js backend server.

That being said, there is a big discrepancy on npm in terms of pure downloads — Express stands tall at 32,397,019 weekly downloads at the time of writing, Next is at 7,263,688, and Nest is at 3,579,676. Now Nest really is tied to Express to some extent, which will be mentioned in the article.

Install Express