Bridging between EVM compatable chains, like Ethereum and Quorum for moving erc20 tokens back and forth
| Software | Version |
|---|---|
| Truffle | ^v5.x |
| Ganache CLI | ^v6.x |
# install dependencies
npm install
# run test node
npm run chain
# export env variables
export DEPLOYER_KEY=XXX...
export NODE_URL=https://bsc-dataseed.binance.org/
export ADMIN_ACCOUNT=0x000... # admin will be granted the access roles of bridge and bank contract
# run test
npm run test
# deploy to test net
npm run migrate:bridge:bsctest/*
* Bridge ERC20
*/
// first, the adim add erc20 to whitelist, only whitelisted erc20 can be bridged
await bridge.addERC20Whitelist(erc20.address, {from: admin});
// second, a user approve bank contract
const amount = 1000;
await erc20.approve(bank.address, amount, {from: user1});
// third, a use deposit erc20 via bridge contract
await bridge.depositERC20(erc20.address, amount, {from: user1});
// then, the bridge cli(in cli directory) will issue wrapped token to the other chain
/*
* Bridge NFT
*/
// first, the adim add nft to whitelist, only whitelisted nft can be bridged
await bridge.addNFTWhitelist(nft.address, {from: admin});
// second, a user approve bank contract
const tokenid = 101;
await nft.approve(bank.address, tokenid, {from: user1});
// third, a use deposit nft via bridge contract
await bridge.depositNFT(nft.address, tokenid, {from: user1});
// then, the bridge cli(in cli directory) will issue wrapped token to the other chain# set path for installed bridgecli
export GOPATH=$(go env GOPATH)
export PATH="$GOPATH/bin:$PATH"
# install bridgecli
make install
# confirm instalation
bridgecli -h
# initalize the home directory in where the configuration file is created
bridgecli init --home ./storage
# edite the configuration file
# NOTE: "in-endpoint" is the source chain, "out-endpoint" is the destination chain
vi ./storage/config.toml
# set the erc20 and nft contract address pairs
# NOTE: set [source-chain-address] [destination-chain-address]
bridgecli pair set 0xe868feADdAA8965b6e64BDD50a14cD41e3D5245D 0xe868feADdAA8965b6e64BDD50a14cD41e3D5245D --home ./storage
bridgecli pair set 0x2518a5D597F670F21Dd4eE989698E18127B3a065 0x61221d7b7978F45A1b51af5492a02Ae6Fc199320 --home ./storage
# confirm the set addresses
bridgecli pair get 0xe868feADdAA8965b6e64BDD50a14cD41e3D5245D --home ./storage
bridgecli pair get 0x2518a5D597F670F21Dd4eE989698E18127B3a065 --home ./storage
# set the private key of the destination chain, used for minting erc20 and nft.
export BRIDGECLI_PRI_KEY=XXXX..
# start bridging service
bridgecli serve --home ./storage