HermezJS examples

Scripts to perform basic actions using hermezjs that have been shown on 0xHack workshop All examples are in examples-hermezjs folder

Examples list

• set-environment.js
  • description: sets hermezjs environment variables depending on chainID
  • requirements:
    • ethereum node url
• create-wallet.js
  • description: creates a standard hermez wallet, an internal hermez wallet and creates an account authorization message
  • requirements:
    • ethereum node url
    • ethereum private key
• deposit.js
  • description: performs deposit in hermez network through smart contract hermez interaction. This action will create an hermez account
  • requirements:
    • ethereum node url
    • ethereum private key
    • token to be deposited
    • ether
• transfer.js
  • description: performs a L2 transfer in hermez network
  • requirements:
    • ethereum node url
    • ethereum private key
    • hermez account
    • enough balance on L2
• exit.js
  • description: performs a L2 exit in hermez network. This action moves funds from L2 to L1 hermez smart contract, ready to be claimed by the user in the following step withdraw
  • requirements:
    • ethereum node url
    • ethereum private key
    • hermez account
    • enough balance on L2
• withdraw.js
  • description: Claim funds from an exit L2 transaction. This action will move funds from hermez contract to user ethereum account
  • requirements:
    • ethereum node url
    • ethereum private key
    • hermez account
    • pending exit
    • ether

Configuration parameters

• ETHEREUM_NODE_URL: ethereum node url
• ETHEREUM_PVT_KEY: ethereum private key
• TOKEN_SYMBOL: token symbol to be used in the examples (example: ETH)
• AMOUNT_DEPOSIT: amount to be deposited from ethereum to hermez network (taking into account token decimals) (example: 0.042)
• AMOUNT_TRANSFER: amount to be transfered between hermez accounts (taking into account token decimals) (example: 0.014)
• AMOUNT_EXIT: amount to exit from hermez network to hermez contract (taking into account token decimals) (example: 0.014)
• RECEIVER: hermez account receiver for the hermez network transfer (example: hez:0xa7Db86d226235B9eaF38d742A32D0CBD4FB187Cc)