Part 3/4 in a series on collateralizing ERC721s for loans on Dharma Protocol

fillDebtOrder.js

/*********************
 *  Setup Dharma.js  *
 *********************/

// Import Dharma from Dharma.js
import Dharma from "@dharmaprotocol/dharma.js";
// Import BigNumber.js version 5.0.0, for wrapping numbers before sending to blockchain.
import * as BigNumber from "bignumber.js";

// Instantiate Dharma
const dharma = new Dharma();

/**********************
 *  Fill a Debt Order  *
 **********************/

const CREDITOR_ADDRESS = "0x601e6e7711b9e3b1b20e1e8016038a32dfc86ddd";
const MAX_GAS = 4712388;
const TX_DEFAULTS = {
    from: CREDITOR_ADDRESS,
    gas: MAX_GAS,
};

/**
 *  This is an example of a debt order that can be transmitted or stored, and used
 *  to establish a debt agreement on Dharma Protocol.
 */
let debtOrder = {
    "principalAmount": new BigNumber(1),
    "debtor": "0x601e6e7711b9e3b1b20e1e8016038a32dfc86ddd",
    "principalToken": "0x2ecf4e28b0387113012ab2e6d5f60d5333ea2180",
    "termsContract": "0xeef7d84ab274d3d288e26538893fb3768bff7d12",
    "termsContractParameters": "0x0100000000000000000000000100271010005000000000001000000000000001",
    "kernelVersion": "0x755e131019e5ab3e213dc269a4020e3e82e06e20",
    "issuanceVersion": "0x0688659d5e36896da7e5d44ebe3e10aa9d2c9968",
    "debtorFee": new BigNumber(0),
    "creditor": "0x0000000000000000000000000000000000000000",
    "creditorFee": new BigNumber(0),
    "relayer": "0x0000000000000000000000000000000000000000",
    "relayerFee": new BigNumber(0),
    "underwriter": "0x0000000000000000000000000000000000000000",
    "underwriterFee": new BigNumber(0),
    "underwriterRiskRating": new BigNumber(0),
    "expirationTimestampInSec": new BigNumber(1538292323),
    "salt": new BigNumber(0),
    "debtorSignature": {
        "v": 27,
        "r": "0x5b2db210d77482c1690e9f3fe15fd3356f05ed288c7b7f2dc9e6cde5588756d2",
        "s": "0x3b27919d6f41df36078b3df00861eb62547ce3d7b89a91c05ef0a40790cdb6af"
    },
    "creditorSignature": {"r": "", "s": "", "v": new BigNumber(0)},
    "underwriterSignature": {"r": "", "s": "", "v": new BigNumber(0)}
};

// Fill the debt order as the creditor.
console.log(`Specifying address ${CREDITOR_ADDRESS} as creditor`);
debtOrder.creditor = CREDITOR_ADDRESS;
console.log(
    "Please make sure you have access to the private key of the above address and sign " +
    "the transaction to fill the debt order."
);
dharma.order.fillAsync(debtOrder, TX_DEFAULTS).then(async (txHash) => {
    console.log("Waiting for transaction to be mined (may take a while)...");
    await dharma.blockchain.awaitTransactionMinedAsync(txHash);
    console.log("The order has been filled.");
});