This script was used to update the ETH/USD exchange rate during the Moeda fundraiser. It uses a volume weighted average of prices across Bitfinex, Gemini, GDAX and Kraken.
With the current settings it will update the contract ETH/USD rate about every 2 hours.
Install
yarn
Running
CONTRACT_ADDRESS=foo ACCOUNT_PASSWORD=bar OWNER_ADDRESS=baz yarn start
Where CONTRACT_ADDRESS is the Moeda fundraiser contract, OWNER_ADDRES is the address of the account that deployed the contract and ACCOUNT_PASSWORD is the password of that account.
Running tests
yarn test