Run the project

npm install
truffle compile

Steps

1. Deploy contract

truffle migrate --reset --network ethTestnet
truffle migrate --reset --network bscTestnet

2. Check token balance before transfer (the first one should be 1000 and the second one should be 0)

truffle exec scripts/eth-token-balance.js --network ethTestnet
truffle exec scripts/bsc-token-balance.js --network bscTestnet

3. Run the bridge script (keep the script opened in a separate terminal)

node scripts/eth-bsc-bridge.js

4. Transfer token (the bridge will listen to the event and do the bridging after transfer)

truffle exec scripts/eth-bsc-transfer.js --network ethTestnet

5. Check token balance after transfer

truffle exec scripts/eth-token-balance.js --network ethTestnet
truffle exec scripts/bsc-token-balance.js --network bscTestnet