import { RelaySDK } from "@gelatonetwork/relay-sdk";

  const chainSupported = await RelaySDK.isChainSupported(chainId);
  if (!chainSupported) {
    console.log("ChainId not supported");
    return;
  }

  // Check if the Relay has an oracle on this ChainId
  const isActiveOracle = await RelaySDK.isOracleActive(chainId);
  if (!isActiveOracle) {
    console.log("Oracle is not active on this network");
    return;
  }

  // Estimates the transaction cost in the defined token for the inputted gasLimit
  // The paymentTokenAddress is the address of the token used to pay transaction fees
  const estimatedExecutionFeeInToken: BigNumber = await RelaySDK.getEstimatedFee(
    chainId,
    paymentTokenAddress,
    gasLimit,
    isHighPriority // If we want to get a high priority fee
  );

  // Get Payment Token Addresses
  const paymentTokensAdresses: string[] = await RelaySDK.getPaymentTokens(
    chainId,
  );

  import { BigNumber } from "ethers"; 
  import { Interface } from "ethers/lib/utils";

  // Generate the function data
  const contractInterface = new Interface(contractABI);
  const data = contractInterface.encodeFunctionData("functionToCall", [args]);

  const relayTx = await RelaySDK.sendRelayTransaction(
    chainId,
    destAddress,
    data,
    paymentTokenAddress,
  );
  console.log(`RelayerTransactionId = ${relayTx.taskId}`);

const status = await RelaySDK.getTaskStatus(taskId);
if (status) {
  const state = (status as TransactionStatus).taskState;
  switch (state) {
    case TaskState.CheckPending:
      console.log(`> Task pending relayer verification`);
      break;
    case TaskState.ExecPending:
      console.log(`> Task queued for execution`);
      break;
    case TaskState.ExecSuccess:
      console.log(`> Task successfully executed, tx hash: ${status.execution?.transactionHash}`);
      break;
    case TaskState.ExecReverted:
      console.log(`> Task was reverted with message: ${status.lastCheck?.message}`);
      break;
    case TaskState.Cancelled:
      console.log(`> Task was cancelled with message: ${status.lastCheck?.message}`);
      break;
    default:
      console.log(`> Task status: ${state}`);
  }

MAINNET: 1,
ROPSTEN: 3,
RINKEBY: 4,
GOERLI: 5,
OPTIMISM: 10,
BSC: 56,
XDAI: 100,
MATIC: 137,
FANTOM: 250,
MOONBEAM: 1284,
ARBITRUM: 42161,
AVALANCHE: 43114