Any way to only submit values that are present in the form?

Question/Feature

I have a redux store that keeps a couple of hundred settings. Of those I only want to display 10-20 in the form. No problem so far. But when I submit the form, all values are submitted, not only those present in the form (the values with an input field).

I suppose I could pick just the values I need from the store state in mapPropsToValues, but it seems like duplicated work.

Is there any better way to handle this?

[klis87]

@jomag If you wanna limit fields, you can use yup for this. I do it for highly dynamic forms, using when like @latviancoder mentioned, but also somehow I abuse yup.validate with stripUnknown: true - https://github.com/jquense/yup#mixedvalidatevalue-any-options-object-promiseany-validationerror

Another trick I use is const initialValues = schema.cast(), which can give me default values of a schema.

My point is, for me yup is a logic/validation layer, Formik is a view layer, each one has its own responsibility.

[jaredpalmer]

Seems like this has been resolved. Would be great to add it to docs section on validation. @klis87 May hit you up on Twitter about your technique so I can add as a docs example