ozzo-validation VS go-multierror

go-ozzo/ozzo-validation

https://github.com/go-ozzo/ozzo-validation Seems to do what I need but likely will need some convoluted reflection to build out the rules. Also likely some custom rules to be written which is okay since it's a one time cost and reuse in the expressions.

Personally I use ozzo validation: https://github.com/go-ozzo/ozzo-validation

This looks useful, but what differentiates it from something like https://github.com/go-ozzo/ozzo-validation ? Why would I use Valgo over something battle tested that follows a very similar pattern?

This is where it gets spicy: I just don't get at all who ever though this struct-tag based validation library was a good idea https://github.com/go-playground/validator - and yet it's the most mainstream one. Try to implement your own type, you're up to register some global validation tag and repeat it every time you're using that type. I'm grateful https://github.com/go-ozzo/ozzo-validation exists, that's what I use. But it's still way behind the other things I mention, where in general, it's simply not possible to pass around an invalid struct - because it can't be built if it's invalid in the first place.

Gin comes with built-in "validation", while Echo recommends the same validator. I am also not a fan of magic struct tags, so I would probably prefer either writing my own or using something like ozzo.

Other packages of note: https://github.com/uber-go/zap https://github.com/go-ozzo/ozzo-validation

Does https://github.com/go-ozzo/ozzo-validation meet your requirements?

https://github.com/go-ozzo/ozzo-validation/blob/v3.6.0/struct.go#L61

Some packages offer utilities to gather results from goroutines, such as multierror.Group or parallel.Map in samber/lo.

I've created a simple Go library for managing concurrent tasks, results, and errors. Inspired by HashiCorp's go-multierror, it simplifies running goroutines, collecting results, and error handling by minimizing boilerplate code.

This looks great and can be integrated into ORM. What about adopting go-multierror?

Unlike errgroup, github.com/hashicorp/go-multierror cannot be interrupted by context. However, it is useful for use cases where you need to check all errors and handle them carefully, because you can keep all errors.

I found that it was also useful to introduce https://github.com/hashicorp/go-multierror so if one or more single work items returns an error, we can also batch the errors as a single thing.