@unchainedshop/plugins/lib/payment/saferpay/buildSignature.js

Official plugin collection for the Unchained Engine with payment, delivery, and pricing adapters

export const buildSignature = async (transactionId, orderPaymentId) => {
    const payload = [transactionId, orderPaymentId, process.env.SAFERPAY_PW].filter(Boolean).join(':');
    const msgUint8 = new TextEncoder().encode(payload);
    const hashBuffer = await crypto.subtle.digest('SHA-256', msgUint8);
    const hashArray = Array.from(new Uint8Array(hashBuffer));
    const hashHex = hashArray.map((b) => b.toString(16).padStart(2, '0')).join('');
    return hashHex;
};