Hybrid dApps

// 1. Initialize TAC SDK
import { TacSdk, Network } from "@tonappchain/sdk";
const tacSdk = await TacSdk.create({ network: Network.TESTNET });

// 2. Connect TON wallet
import { TonConnectUI } from "@tonconnect/ui";
const tonConnect = new TonConnectUI({
  manifestUrl: "https://yourapp.com/tonconnect-manifest.json",
});

// 3. Create cross-chain transactions
const transactionLinker = await tacSdk.sendCrossChainTransaction(
  {
    evmTargetAddress: "0xYourContract",
    methodName: "yourMethod(bytes,bytes)",
    encodedParameters: encodedParams,
  },
  sender,
  assets
);

// 4. Track transaction status
const tracker = new OperationTracker(Network.TESTNET);
const status = await tracker.getOperationStatus(operationId);

pragma solidity ^0.8.0;

import "@tac/proxy-contracts/TacProxyV1.sol";

contract HybridDeFiProtocol is TacProxyV1 {
    constructor(address _crossChainLayer) TacProxyV1(_crossChainLayer) {}

    // This function receives cross-chain calls from TON
    function executeSwap(bytes calldata tacHeader, bytes calldata args)
        external
        _onlyCrossChainLayer
    {
        // Decode TAC header to get user info
        TacHeaderV1 memory header = _decodeTacHeader(tacHeader);

        // Decode your application-specific arguments
        SwapParams memory params = abi.decode(args, (SwapParams));

        // Execute your application logic
        performSwap(params);

        // Optionally send results back to TON
        _sendMessageV1(createReturnMessage(header, results));
    }
}