verifyFields

import { verifyFields } from '@rudra-js/attested';

Call verifyFields to check every field on a card in one call, including a claim that only shows when the fields are read together.

verifyFields(fields: Record<string, string>, facts: Facts) => BatchResult

Reference

verifyFields(fields, facts)

Parameters

• fields: The card's text, keyed by field name, such as { headline, badge, body }.
• facts: The same facts verify takes.

Returns

A BatchResult. fields holds one { field, result } per field, in the order you gave them. Each result is what verify returns for that field. acrossFields is the wording check run over every field joined into one text. supported is true only when every field passes and acrossFields passes too.

Caveats

• acrossFields catches a claim split between fields. A badge of "Free" and a body of "delivery on every order" each pass alone. The shopper reads them as one sentence, so acrossFields reports "free delivery".
• acrossFields runs only the wording check. Numbers are checked field by field.

Usage

import { verifyFields } from '@rudra-js/attested';

type Card = { headline: string; badge: string; body: string };

export function checkedCard(card: Card, price: number): Card | null {
  const result = verifyFields(card, { values: [price] });
  if (result.supported) return card;

  const failed = result.fields
    .filter((entry) => !entry.result.supported)
    .map((entry) => entry.field);
  console.warn('dropped a card', failed, result.acrossFields.findings);
  return null;
}

Source on GitHub@rudra-js/attested on npm