@nexex/api/utils/orderUtil.js

support trade on nexex network

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var types_1 = require("@nexex/types");
var ethers_1 = require("ethers");
var signatureUtils_1 = require("./signatureUtils");
var bigNumberify = ethers_1.utils.bigNumberify, hexlify = ethers_1.utils.hexlify, solidityKeccak256 = ethers_1.utils.solidityKeccak256;
function getOrderHashHex(order) {
    var orderParts = [
        { value: order.exchangeContractAddress, type: types_1.SolidityTypes.Address },
        { value: order.maker, type: types_1.SolidityTypes.Address },
        { value: order.taker, type: types_1.SolidityTypes.Address },
        { value: order.makerTokenAddress, type: types_1.SolidityTypes.Address },
        { value: order.takerTokenAddress, type: types_1.SolidityTypes.Address },
        { value: order.makerFeeRecipient, type: types_1.SolidityTypes.Address },
        {
            value: new ethers_1.utils.BigNumber(order.makerTokenAmount),
            type: types_1.SolidityTypes.Uint256
        },
        {
            value: bigNumberify(order.takerTokenAmount),
            type: types_1.SolidityTypes.Uint256
        },
        {
            value: bigNumberify(order.makerFeeRate),
            type: types_1.SolidityTypes.Uint256
        },
        {
            value: bigNumberify(order.takerFeeRate),
            type: types_1.SolidityTypes.Uint256
        },
        {
            value: bigNumberify(order.expirationUnixTimestampSec),
            type: types_1.SolidityTypes.Uint256
        },
        { value: bigNumberify(order.salt), type: types_1.SolidityTypes.Uint256 }
    ];
    var types = orderParts.map(function (o) { return o.type; });
    var values = orderParts.map(function (o) { return o.value; });
    var hashBuff = solidityKeccak256(types, values);
    return hexlify(hashBuff);
}
exports.getOrderHashHex = getOrderHashHex;
function isValidOrder(order) {
    var hash = getOrderHashHex(order);
    return signatureUtils_1.signatureUtils.isValidSignature(hash, order.ecSignature, order.maker);
}
exports.isValidOrder = isValidOrder;
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