Attention: Coinbase support is in progress.
We're in process of supporting Coinbase, and unfortunately, we might miss some transaction types from which we haven't yet had samples. If you encounter an unsupported trade type in your ledger, please let us know so that we can improve.
From your Coinbase menu, go to "Taxes & Reports", and choose "All time" "All assets" and "All transactions", and download the CSV report.