@atomiqlabs/sdk
Version:
atomiq labs SDK for cross-chain swaps between smart chains and bitcoin
207 lines (206 loc) • 11.5 kB
JavaScript
"use strict";
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) {
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function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
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case 0: case 1: t = op; break;
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var __1 = require("../");
var chain_starknet_1 = require("@atomiqlabs/chain-starknet");
var chain_solana_1 = require("@atomiqlabs/chain-solana");
var solanaRpc = "https://api.mainnet-beta.solana.com";
var starknetRpc = "https://starknet-mainnet.public.blastapi.io/rpc/v0_7";
//We initialize a swapper factory, this is important such that we can pick and choose which chains
// we want to support and only install those specific libraries, here Solana & Starknet are used
//NOTE: The "as const" keyword is important here as to let typescript properly infer the
// generic type of the SwapperFactory, allowing you to have code-completion for Tokens and TokenResolver
var Factory = new __1.SwapperFactory([chain_solana_1.SolanaInitializer, chain_starknet_1.StarknetInitializer]);
var Tokens = Factory.Tokens;
function setupSwapper() {
return __awaiter(this, void 0, void 0, function () {
var swapper, solanaSwapper, signer;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
swapper = Factory.newSwapper({
chains: {
SOLANA: {
rpcUrl: solanaRpc
},
STARKNET: {
rpcUrl: starknetRpc
}
},
//The following line is important for running on backend node.js,
// because the SDK by default uses browser's Indexed DB, which is not available in node
swapStorage: function (chainId) { return null; },
noEvents: true,
noTimers: true,
dontCheckPastSwaps: true,
dontFetchLPs: true
});
//Initialize the swapper
return [4 /*yield*/, swapper.init()];
case 1:
//Initialize the swapper
_a.sent();
solanaSwapper = swapper.withChain("SOLANA");
signer = solanaSwapper.randomSigner();
//Or in React, using solana wallet adapter
//const signer = new SolanaKeypairWallet(useAnchorWallet());
//Extract a swapper with a defined signer
return [2 /*return*/, solanaSwapper.withSigner(signer)];
}
});
});
}
function createToBtcSwap() {
return __awaiter(this, void 0, void 0, function () {
var solanaSwapper, fromToken, toToken, exactIn, amount, recipientBtcAddress, swap, inputTokenAmount, inputValueInUsd, outputTokenAmount, outputValueInUsd, paymentSuccess, bitcoinTxId;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, setupSwapper()];
case 1:
solanaSwapper = _a.sent();
fromToken = Tokens.SOLANA.SOL;
toToken = Tokens.BITCOIN.BTC;
exactIn = false;
amount = (0, __1.fromHumanReadableString)("0.0001", toToken);
recipientBtcAddress = "bc1qtw67hj77rt8zrkkg3jgngutu0yfgt9czjwusxt";
return [4 /*yield*/, solanaSwapper.create(fromToken, toToken, amount, exactIn, recipientBtcAddress)];
case 2:
swap = _a.sent();
inputTokenAmount = swap.getInput().amount;
return [4 /*yield*/, swap.getInput().usdValue()];
case 3:
inputValueInUsd = _a.sent();
outputTokenAmount = swap.getOutput().amount;
return [4 /*yield*/, swap.getOutput().usdValue()];
case 4:
outputValueInUsd = _a.sent();
//Initiate the swap by locking up the SOL
return [4 /*yield*/, swap.commit()];
case 5:
//Initiate the swap by locking up the SOL
_a.sent();
return [4 /*yield*/, swap.waitForPayment()];
case 6:
paymentSuccess = _a.sent();
if (!paymentSuccess) return [3 /*break*/, 7];
bitcoinTxId = swap.getBitcoinTxId();
return [3 /*break*/, 9];
case 7:
//If payment is unsuccessful we can refund and get our funds back
return [4 /*yield*/, swap.refund()];
case 8:
//If payment is unsuccessful we can refund and get our funds back
_a.sent();
_a.label = 9;
case 9: return [2 /*return*/];
}
});
});
}
function createFromBtcSwap() {
return __awaiter(this, void 0, void 0, function () {
var solanaSwapper, fromToken, toToken, exactIn, amount, swap, inputTokenAmount, inputValueInUsd, outputTokenAmount, outputValueInUsd, qrCodeData, bitcoinAddress, timeout, e_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, setupSwapper()];
case 1:
solanaSwapper = _a.sent();
fromToken = Tokens.BITCOIN.BTC;
toToken = Tokens.SOLANA.SOL;
exactIn = true;
amount = BigInt(10000);
return [4 /*yield*/, solanaSwapper.create(fromToken, toToken, amount, exactIn)];
case 2:
swap = _a.sent();
inputTokenAmount = swap.getInput().amount;
return [4 /*yield*/, swap.getInput().usdValue()];
case 3:
inputValueInUsd = _a.sent();
outputTokenAmount = swap.getOutput().amount;
return [4 /*yield*/, swap.getOutput().usdValue()];
case 4:
outputValueInUsd = _a.sent();
//Initiate the swap, this will prompt a Solana transaction, as we need to open the BTC swap address
return [4 /*yield*/, swap.commit()];
case 5:
//Initiate the swap, this will prompt a Solana transaction, as we need to open the BTC swap address
_a.sent();
qrCodeData = swap.getQrData();
bitcoinAddress = swap.getBitcoinAddress();
timeout = swap.getTimeoutTime();
console.log("Please send exactly " + inputTokenAmount + " BTC to " + bitcoinAddress);
//Waits for bitcoin transaction to be received
return [4 /*yield*/, swap.waitForBitcoinTransaction(null, null, function (txId, //Transaction ID received
confirmations, //Current confirmation count of the transaction
targetConfirmations, //Required confirmations for the transaction to be accepted
transactionETAms //Estimated time in milliseconds till the transaction is accepted
) {
//This callback receives periodic updates about the incoming transaction
console.log("Tx received: " + txId + " confirmations: " + confirmations + "/" + targetConfirmations + " ETA: " + transactionETAms + " ms");
})];
case 6:
//Waits for bitcoin transaction to be received
_a.sent(); //This returns as soon as the transaction is accepted
_a.label = 7;
case 7:
_a.trys.push([7, 9, , 11]);
return [4 /*yield*/, swap.waitTillClaimed((0, __1.timeoutSignal)(30 * 1000))];
case 8:
_a.sent();
return [3 /*break*/, 11];
case 9:
e_1 = _a.sent();
//Claim ourselves when automatic claim doesn't happen in 30 seconds
return [4 /*yield*/, swap.claim()];
case 10:
//Claim ourselves when automatic claim doesn't happen in 30 seconds
_a.sent();
return [3 /*break*/, 11];
case 11: return [2 /*return*/];
}
});
});
}
function main() {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
return [2 /*return*/];
});
});
}
main();