[feature]: List of bitcoin JSON-RPC methods used by lnd

[basharov]

Is your feature request related to a problem? Please describe.
I am working on a proxy/loadbalancer app that would be placed between bitcoind and lnd connecting to it.

bitcoind <> proxy <> lnd.

Proxy will check some credentials like rpcpassword and rpcuser and if an RPC method name is correct, e.g. getblockchaininfo and pass it through to bitcoind then sending back the response. If the method is not correct, it will return an error.

I believe lnd won't use the whole set of RPC methods available in bitcoind so I would allow only those that are used by lnd and forbid all the others.

In order to do that I would be happy to get a clue where I can look for those used by lnd.

Describe the solution you'd like
Have some advise on how to look for RPC methods that lnd uses to communicate with bitcoin core

Describe alternatives you've considered
I looked through the code and found some methods but I am not sure those are all I found.

[guggero]

A good place to start is probably BitcoinClient in the wallet library. That is certainly not an exhaustive list and I'm not sure if lnd calls all those methods. But I'd say that would cover around 80 to 90% of the calls.
Another place to look is the BitcoindNotifier in lnd.

[saubyk]

Converting this issue to a discussion, as I don't think we have any action item to address here.