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Define performant and define maintainable. If you have a lot of duplicated functionality in a web frontend and backend, it may be a lot more maintainable to do

Define performant and define maintainable. If you have a lot of duplicated functionality in a web frontend and backend, it may be a lot more maintainable to do the development once and not have to keep two implementations in sync. As far as performance, if you’re using one of the JS application frameworks with server-side pre-rendering time to interactivity may very well be faster than anything you can build in Go or Rust.

LorenzoGood 3y ago
There is no way that a js ssr framework is faster than a go ssr template renderer.
- lolinder 3y ago
  If you're building in plain Go with pure SSR, sure, but OP is talking about building a React frontend that is pre-rendered server-side. TTI very well could be faster with that than with a React front end that talks to a Go backend.
  - konart 3y ago
    I'm kind of lost here. It's been ages since I wrote anything frontend related so here the question: how does it matter? I mean unless you have pure front end app - you are still going to talk to some backend. Regardless of how you got your frontend part - generated by the server or a static file served by nginx.
    - spion 3y ago
      Modern JS frameworks pre-render the components on the server then they attach to them to "rehydrate" and add JS handlers on the client. They also allow mixing of purely-server-side components (essentially templates, no JS or hydration) and mostly-client-side components (that still pre-render on the server) For Rust, Leptos (https://leptos.dev/ https://leptos.dev/) would be one choice that can do SSR+hydration (but not intermixed with server-side components, at least AFAIK not yet)
- tuetuopay 3y ago
  There very well could be, the same way that java can be faster than c. Why? Because js and java are JIT compiled for the very specific cpu they run on, and HotSpot is basically PGO but running all the time. Granted, this is if and only if the js or java is carefully and properly written, which never happens...

LorenzoGood 3y ago

There is no way that a js ssr framework is faster than a go ssr template renderer.

lolinder 3y ago
If you're building in plain Go with pure SSR, sure, but OP is talking about building a React frontend that is pre-rendered server-side. TTI very well could be faster with that than with a React front end that talks to a Go backend.
- konart 3y ago
  I'm kind of lost here. It's been ages since I wrote anything frontend related so here the question: how does it matter? I mean unless you have pure front end app - you are still going to talk to some backend. Regardless of how you got your frontend part - generated by the server or a static file served by nginx.
  - spion 3y ago
    Modern JS frameworks pre-render the components on the server then they attach to them to "rehydrate" and add JS handlers on the client. They also allow mixing of purely-server-side components (essentially templates, no JS or hydration) and mostly-client-side components (that still pre-render on the server) For Rust, Leptos (https://leptos.dev/ https://leptos.dev/) would be one choice that can do SSR+hydration (but not intermixed with server-side components, at least AFAIK not yet)
tuetuopay 3y ago
There very well could be, the same way that java can be faster than c. Why? Because js and java are JIT compiled for the very specific cpu they run on, and HotSpot is basically PGO but running all the time. Granted, this is if and only if the js or java is carefully and properly written, which never happens...