dry-rb/chat

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Pablo Herrero

@pabloh

have you consider it, I mean?

Nikita Shilnikov

@flash-gordon

you can activate dry-monads integration with Dry::Validation.load_extensions(:monads), then you'll be able to call .to_either on Result :sparkles:

so it has been considered :)

Pablo Herrero

@pabloh

hehe, sorry for been a bit of touch... :P

Nikita Shilnikov

@flash-gordon

ah, no worries :)

Pablo Herrero

@pabloh

I didn't know there was a load_extensions system either

@flash-gordon , OTH, is there a reason you make it optional?

for instance, people usually don't understand or don't want to use monads?

or just to have one fewer dependency?

Nikita Shilnikov

@flash-gordon

@pabloh because we want a user to control the dependencies

there are some libs already which depends on dry-v and we care :)

Pablo Herrero

@pabloh

yup, like types and struct, i saw that

but maybe the use of monads should be encouraged here, since we are following a FP style

Nikita Shilnikov

@flash-gordon

heh, I meant like hanami and trailblazer ;)

Pablo Herrero

@pabloh

oh, you meant transitive dependencies, sorry...

Well, good to know I can use them that easily if I want

Nikita Shilnikov

@flash-gordon

@pabloh we don't push monads too hard to not be known as weird geekers in ruby community ... more than we are

just kidding :)

Pablo Herrero

@pabloh

hahahaha

now that you mention it I'm a bit surprised how often I find people using dy-rb o rom-rb, at least indirectly, these days...

mostly for form objects and validations, but it's a start

Nikita Shilnikov

@flash-gordon

yes, dry-v is the most advanced gem from dry-*s atm

Calinoiu Alexandru Nicolae

@alexandru-calinoiu

Hi, at a 24 hackaton trying to spin a up a quick and fast rest api, is there a how-to get started for dry-web?

Calinoiu Alexandru Nicolae

@alexandru-calinoiu

Usintg https://github.com/dry-rb/dry-web-roda for now, hope it does the trick.

Oskar Szrajer

@gotar

@alexandru-calinoiu yeah, but it's a lot of new stuff and concepts if you never use dry-* before

if you have any problems or questions just ask

@alexandru-calinoiu Plus this may helps: https://github.com/dry-rb/dry-web-blog much simpler exmaple

for simle API

oh ok it's not api exmaple any more ;] but maybe will still help

Piotr Solnica

@solnic

https://discuss.dry-rb.org/t/plans-for-dry-validation-dry-schema-a-new-gem/215

John Backus

@backus

Nice ^ Sounds like a big improvement

Don Morrison

@elskwid

Agreed. I like the divide.

Piotr Solnica

@solnic

I should mention that “schema” will be an abstract concept in dry-validation

so any object implementing required interface will work

Tim Riley

@timriley

Oh good, I was going to ask about whether a validation class would require a local schema definition, or whether you could pass one in.

In fact, in a system where your schemas are on the edge, would you need to pass it to the validation object at all, given you know you've already passed your data through it?

Piotr Solnica

@solnic

@timriley yes because a schema defines the input structure so we can easily extract specific values for other rules

a validator needs to know what it’s dealing with

so ie you’d be able to define an HTTP schema at the boundary, and use it in a validator by connecting the two

but you won’t have to define it in the validator itself

I would like to have a way of defining schemas for every http endpoint somehow

we can also do this the other way around, define plain schemas in validators, and infer http schemas from them for http end-points

Tim Riley

@timriley

Right

I like the of comprehensive endpoint scheme definition

The idea of*

Piotr Solnica

@solnic

r.get(“search”) do |r|
  r.schema do
    optional(:q).filled(:str?)
  end

  r.view(‘users.index’, params: { q: s[:q] })
end

maybe this is doable for roda ^

this can define schemas on the fly (and cache them) and then expose s (or something) to access processed params

it can register these schemas in the container and then you could just do:

class UserSearchValidator < Dry::Validation::Validator
  include Import(schema: “schemas.users.search”)

  rule(:q) { |q| … }
end

not the best example but you should see the idea regardless

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