znort987
Realtime parser ideas
Nice work. Your code is super clean, simple and fast.
I'd like to ask you some ideas about how to implement real time parser of new transactions in parser.cpp For example a callback to read all tx with a determined OP_RETURN pattern and then keep looping showing new transactions with that pattern.
What do you think is the best way to implement it? I don't need specific details just some hints from your side about what would be the optimal way.
i'd be interested in realtime parsing of new blocks and persistent sqlite database. Maybe i'll try work on it and submit a PR
The problem with doing this is longest chain validation. At start time, blockparser computes the longest chain, which is easy because the code assumes a static blockchain. For a "real time" parser, it would have to deal with new blocks on the fly, and some of these may eventually become invalid (if they're not part of the longest chain). When this happens, you'd have to revert all internal data structures back to the time of the fork ... you'd also have to revert all transactions commited to the sqlite db. This is not easy at all.
What you want to do is called complex event processing (CEP). Take a look at Esper. You can do that with Esper and a bit of Java.
BTW, one thing I'd like to see in this blockchain parser is a bloom filter option for check if a public address has been seen.
