github.com/btcsuite/btcwallet/wtxmgr
Package wtxmgr provides an implementation of a transaction database handling spend tracking for a bitcoin wallet. Its primary purpose is to save transactions with outputs spendable with wallet keys and transactions that are signed by wallet keys in memory, handle spend tracking for unspent outputs and newly-inserted transactions, and report the spendable balance from each unspent transaction output. It uses walletdb as the backend for storing the serialized transaction objects in buckets. Transaction outputs which are spendable by wallet keys are called credits (because they credit to a wallet's total spendable balance). Transaction inputs which spend previously-inserted credits are called debits (because they debit from the wallet's spendable balance). Spend tracking is mostly automatic. When a new transaction is inserted, if it spends from any unspent credits, they are automatically marked spent by the new transaction, and each input which spent a credit is marked as a debit. However, transaction outputs of inserted transactions must manually marked as credits, as this package has no knowledge of wallet keys or addresses, and therefore cannot determine which outputs may be spent. Details regarding individual transactions and their credits and debits may be queried either by just a transaction hash, or by hash and block. When querying for just a transaction hash, the most recent transaction with a matching hash will be queried. However, because transaction hashes may collide with other transaction hashes, methods to query for specific transactions in the chain (or unmined) are provided as well.
Readme
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(https://travis-ci.org/btcsuite/btcwallet)
Package wtxmgr provides storage and spend tracking of wallet transactions and their relevant input and outputs.
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(http://godoc.org/github.com/btcsuite/btcwallet/wtxmgr)
Full go doc style documentation for the project can be viewed online without
installing this package by using the GoDoc site here:
http://godoc.org/github.com/btcsuite/btcwallet/wtxmgr
You can also view the documentation locally once the package is installed with
the godoc tool by running godoc -http=":6060" and pointing your browser to
http://localhost:6060/pkg/github.com/btcsuite/btcwallet/wtxmgr
$ go get github.com/btcsuite/btcwallet/wtxmgr
Package wtxmgr is licensed under the copyfree ISC License.
FAQs
Package wtxmgr provides an implementation of a transaction database handling spend tracking for a bitcoin wallet. Its primary purpose is to save transactions with outputs spendable with wallet keys and transactions that are signed by wallet keys in memory, handle spend tracking for unspent outputs and newly-inserted transactions, and report the spendable balance from each unspent transaction output. It uses walletdb as the backend for storing the serialized transaction objects in buckets. Transaction outputs which are spendable by wallet keys are called credits (because they credit to a wallet's total spendable balance). Transaction inputs which spend previously-inserted credits are called debits (because they debit from the wallet's spendable balance). Spend tracking is mostly automatic. When a new transaction is inserted, if it spends from any unspent credits, they are automatically marked spent by the new transaction, and each input which spent a credit is marked as a debit. However, transaction outputs of inserted transactions must manually marked as credits, as this package has no knowledge of wallet keys or addresses, and therefore cannot determine which outputs may be spent. Details regarding individual transactions and their credits and debits may be queried either by just a transaction hash, or by hash and block. When querying for just a transaction hash, the most recent transaction with a matching hash will be queried. However, because transaction hashes may collide with other transaction hashes, methods to query for specific transactions in the chain (or unmined) are provided as well.
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