gistfile1.txt

import React, { Component } from "react";
import LendingPoolAddressesProviderABI from "./ABI/LendingPoolAddressesProvider.json";
import LendingPoolABI from "./ABI/LendingPool.json";
import Web3 from "web3";


const referralCode = "0";

// const lpAddressProviderAddress = "0x24a42fD28C976A61Df5D00D0599C34c4f90748c8"; // mainnet address, for other addresses: https://docs.aave.com/developers/developing-on-aave/deployed-contract-instances
const lpAddressProviderAddress = "0x506B0B2CF20FAA8f38a4E2B524EE43e1f4458Cc5" // kovan
const web3 = new Web3(window.ethereum);
const lpAddressProviderContract = new web3.eth.Contract(
  LendingPoolAddressesProviderABI,
  lpAddressProviderAddress
);

export default class App extends Component {
  state = {
    needToAWeb3Browser: false,
  };
  
  async getAddressFromMetaMask() {
    if (typeof window.ethereum == "undefined") {
      this.setState({ needToAWeb3Browser: true });
    } else {
      window.ethereum.autoRefreshOnNetworkChange = false; //silences warning about no autofresh on network change
      const accounts = await window.ethereum.enable();
      this.setState({ accounts });
    }
  }
  async componentDidMount() {
    await this.getAddressFromMetaMask();
    
    if (this.state.accounts) {
    // Get the latest LendingPoolCore address
    const lpCoreAddress = await lpAddressProviderContract.methods
    .getLendingPoolCore()
    .call()
    .catch((e) => {
      throw Error(`Error getting lendingPool address: ${e.message}`);
    });
    
    // Get the latest LendingPool contract address
    const lpAddress = await lpAddressProviderContract.methods
    .getLendingPool()
    .call()
    .catch((e) => {
      throw Error(`Error getting lendingPool address: ${e.message}`);
    });
    
    
    // get DAI from ETH
    // const daiAddress = "0x6B175474E89094C44Da98b954EedeAC495271d0F"; // mainnet DAI
      const daiAddress = '0x4F96Fe3b7A6Cf9725f59d353F723c1bDb64CA6Aa' //kovan
      const daiContract = new web3.eth.Contract(DAITokenABI, daiAddress);
      const daiAmountinWei = web3.utils.toWei("100", "ether").toString();
      console.log("1", lpCoreAddress, daiAmountinWei, this.state.accounts)
      await daiContract.methods
        .approve(lpCoreAddress, daiAmountinWei)
        .send({ from: this.state.accounts[0] })
        .catch((e) => {
          throw Error(`Error approving DAI allowance: ${e.message}`);
        });
      
      // get aDAI from DAI
      const lpContract = new web3.eth.Contract(LendingPoolABI, lpAddress);
      console.log("lpContratc", lpContract);
      await lpContract.methods
        .deposit(daiAddress, daiAmountinWei, referralCode)
        .send({ from: this.state.accounts[0] })
        .catch((e) => {
          throw Error(
            `Error depositing to the LendingPool contract: ${e.message}`
          );
        });

        console.log("got aDAi")
    }
  }
  render() {
    if (this.state.needToAWeb3Browser) {
      return <h1>Please install metamask</h1>;
    }

    return (
    <div> App </div>
    );
  }
}