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by bb88 1376 days ago
How do you like Rust for say SaaS type services? JSON marshalling/unmarshalling, socket behavior, etc? HTTP request/response processing?

I spent the last two months coding in Go pretty much not enjoying it. Nil is not always equal to nil in third party libraries through an interface -- and the compiler wouldn't warn about it.
1 comments
leshow 1376 days ago
Not OP, but if you have gripes about type safety, you're likely to enjoy rust. The compiler will absolutely let you know if you are not handling optional or result types. As a bonus, they are built using regular generic and enum constructs with a little bit of syntax sugar to make them more ergonomic.

serde is also world class for serializing/deserializing, and can generate implementations for you based on struct definitions independent of data format (json/bson/yaml/toml/etc).

The only sharp edge you may bump into for a web service is in your choice to go either sync or async, and if you go async you must then choose a runtime (usually tokio) as these are libraries and not integrated into the std lib beyond just the `async` keyword and a few traits.

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sph 1376 days ago
My hopes for Rust is that they take their async coloured functions back to the drawing board because they are really not fun to deal with, and improve the FFI story with C. Easy interface with C and it's weird memory rules is of utmost importance if we want to replace C with something a little more solid.

But yeah, serialization in Rust is a breeze compared to Go. Probably one of the things I hated the most, along with the errnil boilerplate.

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leshow 1376 days ago
I've been working in the async space for a few years now and it may just be survivor bias, but while I think there are definitely some issues, I'm still largely happy with it. It's still evolving after all. If they can get the cancellation issues sorted and async in traits that would be a good place.

What were your issues with the C FFI? That usually gets praise from people.

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bb88 1375 days ago
> Not OP, but if you have gripes about type safety, you're likely to enjoy rust.

Not type safety so much as program correctness. Type safety is just one aspect of it. Golang is "type safe" but still panics on null pointer accesses.

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