How to validate slice MinLen

[khanakia]

How to validate there must be a minimum 1 LineItem exists. I could not find any thing like this in Readme.md

type SubscriptionLineItem struct {
	ItemPriceID string
	Quantity    int
}

type CreateSubscriptionInput struct {
	UserID             string
	LineItems          []SubscriptionLineItem
}

[carlosforero]

You can validate that a slice has a minimum length using the Int validator with GreaterThan():

val := v.Is(
    v.Int(len(input.LineItems), "line_items").GreaterThan(0, "must have at least 1 line item")
)

This is related to #34

I'm closing this discussion, but if you have any feedback, don't hesitate to send it!