cleancoindev

const main = async function() {
  console.log('Now transferring DAI from my wallet to MyContract...');

  let transferResult = await daiContract.methods.transfer(
    myContractAddress,
    web3.utils.toHex(10e18) // 10 DAI to send to MyContract
  ).send({
    from: myWalletAddress,
    gasLimit: web3.utils.toHex(150000),      // posted at compound.finance/developers#gas-costs
    gasPrice: web3.utils.toHex(20000000000), // use ethgasstation.info (mainnet only)

cleancoindev

contract MyContract {
    event MyLog(string, uint256);

    function supplyErc20ToCompound(
        address _erc20Contract,
        address _cErc20Contract,
        uint256 _numTokensToSupply
    ) public returns (uint) {
        // Create a reference to the underlying asset contract, like DAI.
        Erc20 underlying = Erc20(_erc20Contract);

cleancoindev

const { Cert } = require('@0xcert/cert');
const { HttpProvider } = require('@0xcert/ethereum-http-provider');
const { AssetLedger } = require('@0xcert/ethereum-asset-ledger');

(async () => {

  const schema = {
    "$schema": "http://json-schema.org/draft-07/schema",
    "description": "A digital assets that have a unique combination of different properties.",
    "properties": {