EOSIO Side Setup


Install Zeus if not installed, zeus is used to unbox or install all the necessary dependencies to compile and deploy the necessary contracts.

Ensure you're using node version 16, IPFS can be picky with other versions

Unbox binancetokenpeg box

mkdir binancetokenpeg
cd binancetokenpeg
zeus box create
zeus unbox binancetokenpeg

Compile contracts

zeus compile

Create 3 Kylin and 3 Binance Smart Chain Testnet accounts using these guides:

  • Kylin Testnet: link

  • Binance Smart Chain Testnet: link

Kylin Accounts:

  • Kylin token contract account (token being bridged eosio.token.cpp)

  • Kylin bridge contract account (binancetokenpeg.cpp)

  • Kylin test Account no contract

BSC Testnet Accounts

  • BSCTestnet token contract account (token on BSCTestnet to mint/burn tokens BEP20TokenImplementation.sol)

  • BSCTestnet bridge contract Account (binancetokenpeg.sol)

  • BSCTestnet test Account no contract

export KYLIN_BRIDGE_ACCOUNT=bsctestbridg
export KYLIN_TOKEN_ACCOUNT=bsctesttoken
export KYLIN_TEST_ACCOUNT=natdeveloper
export KYLIN_ENDPOINT=https://kylin.eosn.io

Import our keys into zeus to deploy contracts to Kylin, or can use cleos as well

zeus key import $KYLIN_BRIDGE_ACCOUNT --network kylin --active-private-key 5JB... --owner-private-key 5JB...
zeus key import $KYLIN_TOKEN_ACCOUNT --network kylin --active-private-key 5JB... --owner-private-key 5JB...

Create contract deployment files to migrate contracts to Kylin, located in ./zeus_boxes/contract-migrations-extensions/models/contract-deployments/

zeus create contract-deployment binancetokenpeg $KYLIN_BRIDGE_ACCOUNT kylin
zeus create contract-deployment eosio.token $KYLIN_TOKEN_ACCOUNT kylin

Migrate contracts to Kylin/Jungle

zeus migrate binancetokenpeg --network=kylin --creator $KYLIN_BRIDGE_ACCOUNT --no-reset --no-compile-all --creator-key=""
zeus migrate eosio.token --network=kylin --creator $KYLIN_TOKEN_ACCOUNT --no-reset --no-compile-all --creator-key=""

If you use cleos to set the contract, be sure to set the eosio.code permission level, see here

Initialize Kylin token contract

Create tokens

For Kylin, we'll set the issuer to the token contract, this is to simulate a pre-existing token that is being bridged to another chain.

export MAX_SUPPLY="1000000.0000 TKN"
export ISSUER=$KYLIN_TOKEN_ACCOUNT # token contract itself
cleos -u $KYLIN_ENDPOINT push action $KYLIN_TOKEN_ACCOUNT create "[\"$ISSUER\",\"$MAX_SUPPLY\"]" -p $KYLIN_TOKEN_ACCOUNT@active

If you get errors such as Transaction exceeded the current network usage limit imposed on the transaction, see the Kylin account setup guide to get more tokens and to stake for more resources.

Issue test tokens

We will issue some test tokens to our test account.

export QUANTITY="10.0000 TKN"
export MEMO="issuing tokens"
cleos -u $KYLIN_ENDPOINT push action $KYLIN_TOKEN_ACCOUNT issue "[\"$TO\",\"$QUANTITY\",\"$MEMO\"]" -p $KYLIN_TOKEN_ACCOUNT@active

Transfer test tokens

Now we will transfer the issued tokens to the test account so that it may be sent to the bridge.

export QUANTITY="10.0000 TKN"
export MEMO="don't spend it all in one place!"
cleos -u $KYLIN_ENDPOINT push action $KYLIN_TOKEN_ACCOUNT transfer "[\"$FROM\",\"$TO\",\"$QUANTITY\",\"$MEMO\"]" -p $KYLIN_TOKEN_ACCOUNT@active

Stake for services

Now that we've prepared that part let's move onto staking DAPP for services. First stop is the faucet for some DAPP tokens here. Use the account that has the binancetokenpeg contract set to it.

Stake to required services vRAM, LiquidHarmony Oracles, LiquidScheduler, LiquidLink

Using the DSP Portal we can see these packages, stake 10 DAPP to each (Amount to Stake):

Below we'll select each package then stake for it.

export PROVIDER=uuddlrlrbass
export PACKAGE=ipfs2
export SERVICE=ipfsservice1
export QUANTITY="10.0000 DAPP"
cleos -u $KYLIN_ENDPOINT push action dappservices selectpkg "[\"$KYLIN_BRIDGE_ACCOUNT\",\"$PROVIDER\",\"$SERVICE\",\"$PACKAGE\"]" -p $KYLIN_BRIDGE_ACCOUNT@active
cleos -u $KYLIN_ENDPOINT push action dappservices stake "[\"$KYLIN_BRIDGE_ACCOUNT\",\"$PROVIDER\",\"$SERVICE\",\"$QUANTITY\"]" -p $KYLIN_BRIDGE_ACCOUNT@active

Use the command line login option, top right, this will auto-create the cleos commands for you!

Now let's head over to the EVM side.

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