Ledger command requires ledger_index key to be an int

[miracle2k]

It took a while until I figured out why the following doesn't work right (it simply returns some default current ledger response):

{"command": "ledger", "transactions" : true,"ledger_index": "4044952", "expand": true} 

It's because ledger_index is a string. I'm only reporting this because in responses, ledger_index is also given as a string, which is if nothing else inconsistent.

[HowardHinnant]

The ledger_index, if specified as a numerical sequence number, is now well specified to be a 32-bit unsigned integer: https://ripple.com/build/rippled-apis/#ledger-index

The response now has a top-level ledger_index field containing the ledger index as an unsigned integral type.

However it remains true that the response also contains a ledger object which itself has a duplicate ledger_index containing the numeric value as a string type. This can not be changed for the current rippled API for backwards compatibility reasons. However a future ("versioned") API may change this aspect.