svelte-spa-router VS polka

But the choice depends on the type of application though. If your routes are not dynamic (not using variables within route) then you can use static site generation (SSG) which will generate the various html files. Otherwise you need to use the same file (index.html#my/dynamic/route/5). To my knowledge svelteKit doesn't support hash-based routes. You might be able to configure routing without it, but if you need that, you me be better off to use svelte with svelte-spa-router and not sveltekit.

https://github.com/ItalyPaleAle/svelte-spa-router seems good too.

but it's not official, and Svelte project seems careless for client routing, instead it tries to convince everyone use its SSR-first kit, that "can do CSR too", which means you have to carry the whole SSR code base and its documentation into your CSR project totally unnecessarily.

I get it Vercel needs SSR for its business, I don't get it why it keeps selling everyone that "my SSR-first framework is great for CSR SPA too", it is NOT, not at all.

For a simple static site you can just use svelte with svelte-spa-router. If you want SSG, use Astro, it's a lot more mature than SvelteKit.

Svelte SPA Router - You need a router. NextJS, which you have experienced in, comes with a router.

Svelte SPA Router

I am using Keycloak for logging into my app and svelte-spa-router for hash based routing inside my SPA. After successful login, Keycloak should redirect back to http://localhost:1234/#/myRoute . However, Keycloak appends some suffixes to this route. The route ends up looking something like this: http://localhost:1234/#/myRoute&state=hexstring&session_state=hexstring... etc As I defined my route (inside routes.js) as /myRoute , the router fails to parse the URL returned by keycloak. Looking at the source code I noticed that keycloak changes the URL back to the "clean" parameterless URL: http://localhost:1234/#/myRoute using a call to window.location.replaceState . Unfortunately, this call does not get reflected in the spa-routers internal svelte store (i.e. $location).

How does Routify compare with svelte-spa-router[1]? I really like svelte-spa-router for a simple SPA, though I think a lot of SPA routers don't always handle state well.

[1] https://github.com/ItalyPaleAle/svelte-spa-router

Express.js, with its long-lived version 4 is famous for its somewhat low performance. Other projects like fastify or polka have benchmarks outperforming Express.js. I don’t know why Express is slower, maybe because of regex processing of routes? If you’re using parametric routes like /users/:userid/entity and have no regexp routes, then replacing Express.js with fastify or polka will add a performance boost to your app. They are not direct replacements, but you can convert code if you really need that boost. In the article below benchmarks shows huge improvement, but in reality, your code will be a limiting factor to your app performance, and you are unlikely notice any improvement.

- once released and popular, they cease getting frequent updates

Now, yes this is a generalization. It doesn't apply to all of their packages, and not at the same point in time. But there is a pattern there. Some quick diving into the author's Github account, and their more popular repos shows the pattern. It's also clear that this was a choice made by a Svelte contributor to use their own package for "official" support in Svelte Kit.

When it comes to polka itself, I just don't get why a maturing framework like Svelte would choose something whose only real advantage lies in micro-benchmarking porn [1]. Speculation aside, I'm surprised the Svelte team didn't look at that choice through a lens of higher scrutiny. Koa would have been an infinitely better choice in my personal opinion, and there are several community-driven setups [2][3] for it.

[1] https://github.com/lukeed/polka#benchmarks

[2] https://github.com/kaladivo/svelte-kit-koa-boilerplate

[3] https://blog.logrocket.com/sapper-svelte-tutorial-2021/

Check out polka if you haven’t. It’s far leaner, and faster.

polka link

Sapper, by default, uses polka as the server. I decided to use express instead.

Learn something new every day. This is awesome I could probably use polka instead of express.