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malli 2024-12-30
ppandis 2024-12-30T19:55:24.165399Z
Hello, how can one define a specific keyword for a key's value in Malli? For example, given this data structure where :type is always :url
{:type :url
:content-version "v1.2.3"
:value "xyz"}(def License
[:map
[:type {:default :url} :keyword]
[:content-version :string]
[:value :string]])malli.generator/generate will create a random value for :type and I'm not sure how and if I should be using the _malli.transform_/default-value-transformer
valtteri 2024-12-30T20:04:38.862459Z
How about a single element :enum ?
[:type [:enum :url]]
ppandis 2024-12-30T20:07:18.670489Z
I do wonder if this is the "correct" way to represent this (semantically) but happy to have a working solution!
valtteri 2024-12-30T20:08:20.999799Z
Why would it be semantically incorrect?
ppandis 2024-12-30T20:12:23.318039Z
I'd expect to have the ability to define literal values without presenting them as enums I guess, though it would probably look the same as the enum but with a different keyword? I'm not sure how to support my point in a pinch atm to be honest. Only now starting to use Malli and I'm still trying to figure it all out.
valtteri 2024-12-30T20:13:57.289689Z
That’s fine, no worries 🙂
valtteri 2024-12-30T20:20:00.710339Z
In general enum is a type for a set of constants. There maybe could be a :const that could work as a special case of enum with exactly one possible value.
valtteri 2024-12-30T20:20:38.251169Z
But anyway, enums are very useful with schemas
ppandis 2024-12-30T20:22:24.209259Z
Yes, the :const example is probably a good analogy. Nonetheless, thank you very much 😉
👍 1
