@gotake/gotake-sdk
Version:
SDK for interacting with GoTake blockchain contracts
193 lines (192 loc) • 8.55 kB
JavaScript
;
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o["default"] = v;
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var __importStar = (this && this.__importStar) || (function () {
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__setModuleDefault(result, mod);
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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function verb(n) { return function (v) { return step([n, v]); }; }
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Object.defineProperty(exports, "__esModule", { value: true });
exports.getEnv = getEnv;
exports.getPrivateKey = getPrivateKey;
exports.createSignerFromEnv = createSignerFromEnv;
exports.createProvider = createProvider;
var ethers_1 = require("ethers");
var providers_1 = require("@ethersproject/providers");
var environment_1 = require("./environment");
// Async dotenv loading for Node.js environments only
var dotenvLoaded = false;
function loadDotenvIfNeeded() {
return __awaiter(this, void 0, void 0, function () {
var dotenv, error_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (dotenvLoaded || !(0, environment_1.hasEnvironmentVariables)()) {
return [2 /*return*/];
}
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, Promise.resolve().then(function () { return __importStar(require('dotenv')); })];
case 2:
dotenv = _a.sent();
dotenv.config();
dotenvLoaded = true;
return [3 /*break*/, 4];
case 3:
error_1 = _a.sent();
return [3 /*break*/, 4];
case 4: return [2 /*return*/];
}
});
});
}
/**
* Get environment variable value
* @param key Environment variable name
* @param defaultValue Default value (if environment variable doesn't exist)
* @returns Environment variable value
*/
function getEnv(key, defaultValue) {
return __awaiter(this, void 0, void 0, function () {
var value;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, loadDotenvIfNeeded()];
case 1:
_a.sent();
value = (0, environment_1.getEnvironmentVariable)(key, defaultValue);
if (value === undefined) {
if (!(0, environment_1.hasEnvironmentVariables)()) {
throw new Error("Environment variables not available in browser environment. Please provide ".concat(key, " directly."));
}
throw new Error("Environment variable ".concat(key, " not set"));
}
return [2 /*return*/, value];
}
});
});
}
/**
* Get private key from environment variable
* @param keyName Private key environment variable name, default is 'PRIVATE_KEY'
* @returns Private key string
*/
function getPrivateKey() {
return __awaiter(this, arguments, void 0, function (keyName) {
if (keyName === void 0) { keyName = 'PRIVATE_KEY'; }
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, getEnv(keyName)];
case 1: return [2 /*return*/, _a.sent()];
}
});
});
}
/**
* Create Signer from environment variable
* @param provider Ethereum Provider
* @param keyName Private key environment variable name
* @returns Ethereum wallet instance
*/
function createSignerFromEnv(provider_1) {
return __awaiter(this, arguments, void 0, function (provider, keyName) {
var privateKey;
if (keyName === void 0) { keyName = 'PRIVATE_KEY'; }
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, getPrivateKey(keyName)];
case 1:
privateKey = _a.sent();
return [2 /*return*/, new ethers_1.ethers.Wallet(privateKey, provider)];
}
});
});
}
/**
* Create Provider from environment variable or parameter
* @param rpcUrl RPC URL (optional)
* @returns JsonRpcProvider instance
*/
function createProvider(rpcUrl) {
return __awaiter(this, void 0, void 0, function () {
var url, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_a = rpcUrl;
if (_a) return [3 /*break*/, 2];
return [4 /*yield*/, getEnv('RPC_URL')];
case 1:
_a = (_b.sent());
_b.label = 2;
case 2:
url = _a;
return [2 /*return*/, new providers_1.JsonRpcProvider(url)];
}
});
});
}