just makeAndSignTx instead of broadcasting it; the broadcast should only be done after the ether ticket is reserved, to prevent someone else from sniping the ether (eg ether seller could send themselves btc and then use the tx to get back their ether)
just makeAndSignTx instead of broadcasting it; the broadcast should only be done after the ether ticket is reserved, to prevent someone else from sniping the ether (eg ether seller could send themselves btc and then use the tx to get back their ether)

ethers/btcToEther