@nexex/api
Version:
support trade on nexex network
186 lines • 9.73 kB
JavaScript
"use strict";
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var ethers_1 = require("ethers");
/* tslint:disable no-import-side-effect */
require("reflect-metadata");
var constants_1 = require("./constants");
var Exchange_1 = require("./contracts/Exchange");
var Portal_1 = require("./contracts/Portal");
var TokenHelper_1 = require("./contracts/TokenHelper");
var TokenRegistry_1 = require("./contracts/TokenRegistry");
var utils_1 = require("./utils");
var assert_1 = require("./utils/assert");
var arrayify = ethers_1.utils.arrayify, hashMessage = ethers_1.utils.hashMessage, randomBytes = ethers_1.utils.randomBytes, splitSignature = ethers_1.utils.splitSignature;
/* tslint:enable */
var Dex = /** @class */ (function () {
function Dex(config) {
this.config = config;
var portalAddr = config.portalAddr, provider = config.provider, network = config.network;
if (!provider) {
this.eth = ethers_1.ethers.getDefaultProvider(network);
}
else if (typeof provider === 'string') {
this.eth = new ethers_1.ethers.providers.JsonRpcProvider(provider);
}
else {
this.eth = provider;
}
this.portal = new Portal_1.Portal(this.eth, config.network, portalAddr);
}
Dex.create = function (config) {
return __awaiter(this, void 0, void 0, function () {
var dex;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
dex = new Dex(config);
return [4 /*yield*/, dex.init()];
case 1:
_a.sent();
return [2 /*return*/, dex];
}
});
});
};
/**
* Generates a pseudo-random 256-bit salt.
* The salt can be included in a 0x order, ensuring that the order generates a unique orderHash
* and will not collide with other outstanding orders that are identical in all other parameters.
* @return A pseudo-random 256-bit number that can be used as a salt.
*/
Dex.generatePseudoRandomSalt = function () {
return ethers_1.ethers.utils.bigNumberify(randomBytes(32)).toString();
};
Dex.prototype.signOrder = function (signer, order) {
return __awaiter(this, void 0, void 0, function () {
var orderHash, ecSignature;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
orderHash = utils_1.orderUtil.getOrderHashHex(order);
return [4 /*yield*/, this.signOrderHash(signer, orderHash)];
case 1:
ecSignature = _a.sent();
return [2 /*return*/, __assign({}, order, { ecSignature: ecSignature })];
}
});
});
};
/**
* Signs an orderHash and returns it's elliptic curve signature.
* This method currently supports TestRPC, Geth and Parity above and below V1.6.6
* @param orderHash Hex encoded orderHash to sign.
* @param signerAddress The hex encoded Ethereum address you wish to sign it with. This address
* must be available via the Web3.Provider supplied to 0x.js.
* @param shouldAddPersonalMessagePrefix Some signers add the personal message prefix `\x19Ethereum Signed Message`
* themselves (e.g Parity Signer, Ledger, TestRPC) and others expect it to already be done by the client
* (e.g Metamask). Depending on which signer this request is going to, decide on whether to add the prefix
* before sending the request.
* @return An object containing the Elliptic curve signature parameters generated by signing the orderHash.
*/
Dex.prototype.signOrderHash = function (signer, orderHash, shouldAddPersonalMessagePrefix) {
if (shouldAddPersonalMessagePrefix === void 0) { shouldAddPersonalMessagePrefix = false; }
return __awaiter(this, void 0, void 0, function () {
var msgHashBuff, signature, _a, r, s, v;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
assert_1.assert.isHexString('orderHash', orderHash);
msgHashBuff = arrayify(orderHash);
if (shouldAddPersonalMessagePrefix) {
msgHashBuff = arrayify(hashMessage(msgHashBuff));
}
return [4 /*yield*/, signer.signMessage(msgHashBuff)];
case 1:
signature = _b.sent();
_a = splitSignature(signature), r = _a.r, s = _a.s, v = _a.v;
return [2 /*return*/, { r: r, s: s, v: v }];
}
});
});
};
Dex.prototype.init = function () {
return __awaiter(this, void 0, void 0, function () {
var _a, exchangeAddr, registryAddr, _b, _c, wethAddress, gatewayAddr, _d;
return __generator(this, function (_e) {
switch (_e.label) {
case 0: return [4 /*yield*/, this.portal.portalEntries(constants_1.PortalEntry.Exchange)];
case 1:
_b = [
_e.sent()
];
// await this.portal.portalEntries(PortalEntry.TransferGateway),
return [4 /*yield*/, this.portal.portalEntries(constants_1.PortalEntry.TokenRegistry)];
case 2:
_a = _b.concat([
// await this.portal.portalEntries(PortalEntry.TransferGateway),
_e.sent()
]), exchangeAddr = _a[0], registryAddr = _a[1];
this.exchange = new Exchange_1.Exchange(this.eth, this.config.network, exchangeAddr);
this.tokenRegistry = new TokenRegistry_1.TokenRegistry(this.eth, this.config.network, registryAddr);
return [4 /*yield*/, this.tokenRegistry.getTokenBySymbol('WETH')];
case 3:
_d = [
_e.sent()
];
return [4 /*yield*/, this.exchange.tokenTransferProxy()];
case 4:
_c = _d.concat([
_e.sent()
]), wethAddress = _c[0], gatewayAddr = _c[1];
this.token = new TokenHelper_1.TokenHelper(this.eth, this.config.network, gatewayAddr, wethAddress.addr);
return [2 /*return*/];
}
});
});
};
return Dex;
}());
exports.Dex = Dex;
//# sourceMappingURL=Dex.js.map