Answer by JZ. for Ethereum and Rails Tutorials

https://github.com/fogonthedowns/blupee is a simple Ruby interface for working with the Ethereum Blockchain:

new wallet:

ether_wallet = Blupee::API::Ether.new_wallet('[hidden]')

wallet balance:

ether_balance = Blupee::API::Ether.balance("0xad96B1072E60f6279F628E7512242F9b1A83127F")

erc20 tokens:

args = {wallet_address:"", contract_address:""}Blupee::API::Token.balance(args)