xrpl-dev-portal/_code-samples/modular-tutorials/five-bells.cjs

const cc = require('five-bells-condition');
const crypto = require('crypto');

// 1. Generate a random 32-byte seed
const preimageData = crypto.randomBytes(32);

// 2. Create a PreimageSha256 fulfillment object
const fulfillment = new cc.PreimageSha256();

// 3. Set the preimage
fulfillment.setPreimage(preimageData);

// 4. Generate the condition (binary)
const conditionBinary = fulfillment.getConditionBinary();

// 5. Generate the fulfillment (binary)
const fulfillmentBinary = fulfillment.serializeBinary();

// Convert to hex for easier use
const conditionHex = conditionBinary.toString('hex').toUpperCase();
const fulfillmentHex = fulfillmentBinary.toString('hex').toUpperCase();

console.log('Condition (hex):', conditionHex);
console.log('Fulfillment (hex):', fulfillmentHex);