deposit MATIC from L1 to L2 using maticjs-plasma

depositMATIC

import { sleep } from "../utils/utilityFunctions";
import { getPlasmaClient } from "../utils/plasmaClient";
import { getChildUser, maticAddressL1 } from "../../config";
import { ITransactionWriteResult } from "@maticnetwork/maticjs";
import { PlasmaClient } from "@maticnetwork/maticjs-plasma";
import type { ERC20 } from "@maticnetwork/maticjs-plasma/dist/ts/erc20";
import ps from "prompt-sync";
const prompt = ps();

export async function depositMATIC() {
  try {
    console.log("\n-----------------------------------------");
    console.log("BRIDGE MATIC from L1 to L2");
    console.log("-----------------------------------------\n");

    /* ---------------------------- INPUT ------------------------------ */

    const maticAddress = maticAddressL1;

    const amount: string | null = prompt("Enter the total amount of MATIC to bridge: ");
    if (!amount) return console.log("Total amount of MATIC to bridge cannot be null");
    if (Number(amount) <= 0)
      return console.log("Total amount of MATIC to bridge cannot be less than or equal to zero");

    /* ---------------------------- SETUP ------------------------------ */

    /* 
      SETUP PLASMA CLIENT
    */
    const plasmaClient: PlasmaClient | undefined = await getPlasmaClient();
    if (plasmaClient) {
      let maticToken: ERC20 = plasmaClient.erc20(maticAddress, true);

      /* ---------------------------- APPROVE ---------------------------- */

      /* 
        APPROVE ROOT TOKEN 
      */
      console.log("\n-----------------------------------------");
      console.log("APPROVE - MATIC TO TRANSFER TO DEPOSIT MANAGER AKA PLASMA CONTRACT ON L1");
      console.log("-----------------------------------------\n");
      let approveResponse: ITransactionWriteResult = await maticToken.approve(amount);
      await sleep(60000); // wait at least 60sec for state change

      console.log(`Approve transaction hash: `, await approveResponse.getTransactionHash());
      console.log(
        `Transaction details: https://goerli.etherscan.io/tx/${await approveResponse.getTransactionHash()}`
      );

      console.log("\nMATIC Approved successfully");

      /* ---------------------------- DEPOSIT ---------------------------- */

      /* 
        DEPOSIT ROOT TOKEN
      */
      console.log("\n-----------------------------------------");
      console.log("DEPOSIT - MATIC TO PLASMA BRIDGE CONTRACT");
      console.log("-----------------------------------------\n");
      let depositResponse: ITransactionWriteResult = await maticToken.deposit(amount, getChildUser());
      console.log("Deposit transaction hash: ", await depositResponse.getTransactionHash());
      console.log(
        `Transaction details: https://goerli.etherscan.io/tx/${await depositResponse.getTransactionHash()}`
      );
      console.log(`\nMATIC Deposited successfully to Plasma Bridge Contract`);
    } else {
      console.log("plasmaClient is undefined");
    }
  } catch (error) {
    console.log("Error in depositMATIC: ", error);
  }
}