Hey all! Read a lot of good things about Rust and I was getting pretty bored and often annoyed with building new FastAPI apps. I'm just getting started, from my research Poem seems to be doing the same thing as FastAPI kinda and I'm using SeaORM for the DB.

So far I'm loving it, Cargo.toml looks a lot like Poetry in Python but in VSCode it magically shows me the latest versions of all dependencies. Debugging is really nice because I can just copy & paste compiler messages into an LLM or Google them. It was a bit of a hassle to get all dependencies to work together and to get the thing to compile at first but now it works and I'm happy.

That being said is there anything else I need to know? I still have a very limited understanding of the whole ownership thing but e.g. I understand the benefits of passing variables instead of copying them so I guess that's a start?

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[–] 5C5C5C 9 points 2 weeks ago (2 children)

I don't agree with the previous poster. There's nothing wrong with diving in and figuring things out as you go, especially if that's a way that you commonly like to learn. Everyone has different learning styles, and Rust can fit all those styles.

The main thing to understand is you shouldn't let compilation errors discourage you. You will get a lot of compilation errors. And I mean A LOT. That's okay, it's normal, and it doesn't mean you're dumb or that Rust is an excessively difficult language. It generally just means that there's some new piece of the language for you to learn before you can take your next step.

When you run into compilation errors, just read the error message carefully and see if you can understand what the problem is. Often the error itself will tell you how to fix it, but you should take the opportunity to understand why the fix is necessary. In every case there's a reason that the language is putting limitations on what you're doing. It's to protect you from bad habits that other languages used to let you get away with. So understand what's bad about what you were doing and you'll rapidly grow as a developer.

If you can't figure out what's wrong from the compilation error alone, that's when it makes sense to turn to the book. The error messages will generally include a reference code which you can use to get more details on the nature of the error. Googling that will lead you to online discussions and maybe entries in the Rust book. Otherwise there isn't a real need to read through the book from front to back unless that's a way you like to learn.

[–] [email protected] 3 points 2 weeks ago

Yeah, maybe should be added that Rust front-loads errors. It tells you about them at compile-time, so that you run into less weird errors during runtime. This is a good thing, but certainly needs some getting-used-to when coming from Python.

[–] echodrift 1 points 2 weeks ago

Thanks a lot! Yeah I’ve been doing that and the compile messages are honestly awesome, sometimes I’m not sure if I should react to every warning because it’s a lot of extra work during development, but it helps me understand what’s going on. I’m still puzzled about some of the details of the language but the community seems very nice and there seem to be a lot of resources. Thanks for the encouragement!