Format a Zod validation issue as a localized error message.

  • Parameters

    • req: Request

      Express request (provides i18n)

    • issue: $ZodIssue

      Zod validation issue to format

    • unexpectedKey: string = 'unexpected form data'

      i18n key for unrecognized fields (defaults to "unexpected form data")

    Returns string

    Formatted error message