TRANSFER TOKEN DAPP WITH LATCH

To run the backend, run the commands below.

npm install
npm start

To run the frontend, run the commands below. (Different terminal)

npm install
npm start

To update the smart contract address, you have to deploy it again using the script

npx hardhat run --network mumbai scripts/deploy.js
or 
npx hardhat run --network goerli scripts/deploy.js

Result