Ruby library for accessing the Ethereum blockchain via JSON RPC

This code lists the accounts at the default JSON RPC endpoint and prints the balance of the first account. It then sends a small amount of ether from the first account to the second.

w3 = Web3.new
accounts = w3.personal_listAccounts
puts w3.eth_getBalance accounts[0]
amount_to_send = 0.0001
w3.sendEther(accounts[0], accounts[1], amount_to_send, "mypassword")

NOTE: For the above code to work, the Web3 endpoint needs to be running the "personal" API, which is turned off in geth by default. Visit https://github.com/ethereum/go-ethereum/wiki/Management-APIs for details.

Auto generated docs can be found at https://spikewilliams.github.io/vtada-ethereum/

Use environment variables to configure the vdata-ethereum client.

To set the endpoint (default is http://localhost:8545):

SET ETH_ENDPOINT=http://hostname:port

To set the client id (default is 999):

SET ETH_DEFAULT_CLIENT_ID=###

For debug mode:

SET ETH_DEBUG=true