Superstruct: Array attribute types error an array of errors instead of an object for errors

[coreyjv]

Describe the bug

When using superstruct resolver with an array field type the the error object is an array instead of an object per the React Hook Form documentation.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://codesandbox.io/s/competent-kalam-v98vd?file=/src/App.js
2. Click on "Submit Query" button
3. Observe the arrayField errors property is an array instead of an object. This is the unexpected behavior.
4. Observe that nonArrayField errors property is an object as expected.

Expected behavior

Per the documentation the errors for a field should be an object with a message and type property and not an array.

Desktop (please complete the following information):

• OS: MacOS 10.15.7
• Browser: Firefox
• Version 88.0b4

Additional context

In this instance it appears that parseErrorSchema produces an object like this:

  { "arrayField.0": { "message": "Expected one of `"John,"Jane"`, but received: "Bill"", "type": "enums" } }

which when passed to toNestError from @hookform/resovlers returns an Array

[jorisre]

Hi @coreyjv

Sorry for the late reply.

We generate form errors based on validation library result, in your case, the result of superstruct look likes that:

We follow the given path to format form errors, that's why you get an array of errors.

As an alternative, you can use the custom-refinements to validate yourself the value.
Example: https://codesandbox.io/s/flamboyant-wind-t81mt

@bluebill1049 Any idea ? thanks

[bluebill1049]

That's right @jorisre we follow the path, this path looks strange to me, I am not sure how we can support that.

[coreyjv]

@jorisre and @bluebill1049 -- For what it's worth I was trying out the yup resolver and it behaves in the same fashion.

[jorisre]

@coreyjv Did you find a solution?

[coreyjv]

@jorisre there's no solution that I'm aware of besides checking if the error object is an array and handling it accordingly.

[bluebill1049]

closing it as a design limitation.