The API reference shows that the information returned about a charge from the /v1/charges endpoint should include a lot more information about the card in the 'source' data, such as the card expiry month/year, whether or not the CVC check passed, the card type (funding), etc. However all I'm getting back is the brand and the first 6 / last 4 digits.
I'd really like to be able to retrieve the expiry month/year. Is there a way to get that information? Does the 'expand' parameter help here? I still can't figure out how to use that parameter, the documentation doesn't give any details about what is valid for that parameter.