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This site shows you unconfirmed bitcoin transactions: https://blockchain.info/unconfirmed-transactions
As I understand it, these unconfirmed transactions are received and rebroadcast by every bitcoin client. Given that they are on my computer, how would I go about extracting this information (i.e. a list of all unconfirmed bitcoin transactions) from the bitcoin client?
The RPC interface includes the getrawmempool command which returns transactions in your memory pool. Transactions stay in your memory pool until they're confirmed, so this is effetively a list your known unconfirmed transacions.
Since getrawmempool returns only a list of transaction ids, you'll have to getrawtransaction <txid> for each transaction id in your memory pool. Remember you can get JSON-formmated output via getrawtransaction <txid> 1.
getrawmempool already has extra argument for tx details
Aug 28, 2015 at 18:11