Ethereum Common
The packages contains two launch files: erc20.launch and signer.launch. The last one is included in Robonomics Liability.
Below is the description for erc20 node which contains utils for convenient work with Ethereum accounts and XRT token.
ROS Parameters
~web3_http_provider
Web3 HTTP provider address. The type is string, defaults to http://127.0.0.1:8545
~erc20_token
ERC20 token to work with. Type is string, defaults to xrt.5.robonomics.eth
~factory_contract
The name of the liability factory. The type is string, defaults to factory.5.robonomics.eth
~ens_contract
The checksumed address of ENS registry. The type is string, defaults to ""
~keyfile
Path to keyfile. The type is string, defaults to "". Required parameter
~keyfile_password_file
Path to a file with password for the keyfile. The type is string, defaults to "". Required parameter
Published topics
/eth/event/transfer (ethereum_common/TransferEvent)
The event ethereum_common/TransferEvent is emitted after the transfer of tokens was made
/eth/event/approval (ethereum_common/ApprovalEvent)
The event ethereum_common/ApprovalEvent is emitted after the approval of tokens was made
Services
/eth/accounts (ethereum_common/Accounts)
List of available Ethereum accounts. See ethereum_common/Accounts
/eth/account_eth_balance (ethereum_common/AccountBalance)
Returns the balance of the given address in Wei. See ethereum_common/AccountBalance
/eth/eth_balance (ethereum_common/Balance)
Returns the balance of the default address. See :ref:Ethereum-common-Balance.srv
/eth/current_block (ethereum_common/BlockNumber)
Returns current block number. See :ref:Ethereum-common-BlockNumber.srv
/eth/transfer (ethereum_common/Transfer)
Transfers tokens from the default account to a given one. See :ref:Ethereum-common-Transfer.srv
/eth/transfer_from (ethereum_common/TransferFrom)
Transfers tokens from a given account to another one. See :ref:Ethereum-common-TransferFrom.srv
/eth/approve (ethereum_common/Approve)
Approves tokens from the default account to a given one. See :ref:Ethereum-common-Approve.srv
/eth/account_xrt_balance (ethereum_common/AccountBalance)
Returns the XRT balance of a given account. See :ref:Ethereum-common-AccountBalance.srv
/eth/xrt_balance (ethereum_common/Balance)
Return the XRT balance of the default account. See :ref:Ethereum-common-Balance.srv
/eth/account_xrt_allowance (ethereum_common/AccountToAddressAllowance)
Returns how much one account is allowed to spend from another account. See :ref:Ethereum-common-AccountToAddressAllowance.srv
/eth/xrt_allowance (ethereum_common/Allowance)
Returns how much the Factory is allowed to spend from the default account. See :ref:Ethereum-common-Allowance.srv