nft-barter-sdk
Version:
Javascript SDK for abstracting complexities of interacting with NFT protocols.
181 lines (180 loc) • 8.95 kB
JavaScript
"use strict";
/**
* NFT Barter
* @author Ebube Ud <kripsonud@gmail.com>
*/
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) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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) : adopt(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");
var verificationHandler_1 = require("./verificationHandler");
var config_1 = require("./config");
var Barter = /** @class */ (function () {
function Barter(_provider) {
var _this = this;
/**
*
* @param address Contract address of the NFT
*/
this.getBaseUri = function (address) {
return '';
};
this.verifyTransferAssets = function (tokenTransferObject) { return __awaiter(_this, void 0, void 0, function () {
var _i, _a, tokenDetail, verificationResult, _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
_i = 0, _a = tokenTransferObject.releasingTokens;
_c.label = 1;
case 1:
if (!(_i < _a.length)) return [3 /*break*/, 9];
tokenDetail = _a[_i];
verificationResult = { status: true };
_b = tokenDetail.tStandard;
switch (_b) {
case 'ERC20': return [3 /*break*/, 2];
case 'ERC721': return [3 /*break*/, 4];
case 'ERC1155': return [3 /*break*/, 5];
case 'CRYPTO_PUNKS': return [3 /*break*/, 6];
}
return [3 /*break*/, 7];
case 2: return [4 /*yield*/, this.verififcationHandler.verifyERC20Ownership(tokenDetail.tAddress, tokenTransferObject.from, tokenDetail.quantity)];
case 3:
verificationResult = _c.sent();
return [3 /*break*/, 7];
case 4: return [3 /*break*/, 7];
case 5: return [3 /*break*/, 7];
case 6: return [3 /*break*/, 7];
case 7:
if (!verificationResult.status) {
throw new Error(verificationResult.err);
}
_c.label = 8;
case 8:
_i++;
return [3 /*break*/, 1];
case 9:
console.log('Verification Passed');
return [2 /*return*/];
}
});
}); };
this.signTransferTransaction = function (tokenTransferObject) { return __awaiter(_this, void 0, void 0, function () {
var domain, signer, types, signature;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
// Verify Token Ownership
return [4 /*yield*/, this.verifyTransferAssets(tokenTransferObject)];
case 1:
// Verify Token Ownership
_a.sent();
// Format Values
tokenTransferObject = this.formatTokenTransferObject(tokenTransferObject);
return [4 /*yield*/, this.config.getDomain()];
case 2:
domain = _a.sent();
return [4 /*yield*/, this.provider.getSigner()];
case 3:
signer = _a.sent();
types = {
TokenInfo: [
{ name: 'tId', type: 'uint' },
{ name: 'tAddress', type: 'address' },
{ name: 'tStandard', type: 'string' },
{ name: 'quantity', type: 'string' },
],
TokenTransferObject: [
{ name: 'from', type: 'address' },
{ name: 'to', type: 'address' },
{ name: 'releasingTokens', type: 'TokenInfo[]' },
{ name: 'receivingTokens', type: 'TokenInfo[]' },
],
};
return [4 /*yield*/, signer._signTypedData(domain, types, tokenTransferObject)];
case 4:
signature = _a.sent();
return [2 /*return*/, __assign(__assign({}, tokenTransferObject), { signature: signature })];
}
});
}); };
this.executeTransfer = function (data) {
return true;
};
this.formatTokenTransferObject = function (data) {
var formattedData = data;
for (var _i = 0, _a = formattedData.releasingTokens; _i < _a.length; _i++) {
var eachTokenInfo = _a[_i];
switch (eachTokenInfo.tStandard) {
case 'ERC20':
eachTokenInfo.quantity = ethers_1.ethers.utils.parseEther(eachTokenInfo.quantity).toString();
break;
}
}
for (var _b = 0, _c = formattedData.receivingTokens; _b < _c.length; _b++) {
var eachTokenInfo = _c[_b];
switch (eachTokenInfo.tStandard) {
case 'ERC20':
eachTokenInfo.quantity = ethers_1.ethers.utils.parseEther(eachTokenInfo.quantity).toString();
break;
}
}
return formattedData;
};
this.toWei = function (value) {
return ethers_1.ethers.utils.parseEther(value);
};
this.appName = 'NFT Barter';
this.provider = _provider;
// Init Helpers
this.verififcationHandler = new verificationHandler_1.default(this);
this.config = new config_1.default(this);
}
return Barter;
}());
exports.default = Barter;