bluzky
I know that Vex is a great and popular data validation library. But learn how to write a library is fun and I can learn lots of things. So I build my own library called Valdi
https://github.com/bluzky/valdi
- It supports validate value against multiple validation:
iex(12)> Valdi.validate(10, type: :integer, number: [min: 10, max: 20])
:ok
iex(13)> Valdi.validate("email@g.c", type: :string, format: ~r/.+@.+\.[a-z]{2,10}/)
{:error, "format not matched"}
- You can validate list of value
iex(51)> Valdi.validate_list([1,2,3], type: :integer, number: [min: 2])
{:error, [[0, "must be greater than or equal to 2"]]}
- And validate map data too
iex(54)> validation_spec = %{
...(54)> email: [type: :string],
...(54)> password: [type: :string, length: [min: 8]],
...(54)> age: [type: :integer, number: [min: 16, max: 60]]
...(54)> }
iex(56)> Valdi.validate_map(%{name: "dzung", password: "123456", emal: "ddd@example.com", age: 28}, validation_spec)
{:error, %{password: "length must be greater than or equal to 8"}}
Thank for reading.
Please comment if you have any suggestion.
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stefanchrobot
My comments would be pretty much the same as here
bluzky
Thank you for your comment. I used
Ecto.Changesetbefore and there are some reason why I build another one:Changesetneet much code to do the same thingUsing Ecto.Changeset
Using Valdi
I have tried wrapping Ecto before but I have to do some hack to support nested and dynamic default value
Mpanarin
Love this answer!
Coming from python world, where things like cerberus exist, validating request params with Ecto felt like hunting a fly with AR.
Thanks for this minimalistic library!
bluzky
Thank you. Love to hear that.