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Bitcoin

getBitcoinSignedTransaction

The D'CENT Android SDK provides functions for signing transaction of coins.
This function for :
  • .BITCOIN - bitcoin (BTC)
  • .BITCOIN_SV - bitcoin sv (BSV)
  • .BTC_SEGWIT - bitcoin segwit (BTC)
  • .MONACOIN - monacoin (MONA)
  • .LITECOIN - litecoin (LTC)
  • .LTC_SEGWIT - litecoin segwit (LTC)
  • .ZCASH - zcash (ZEC)
  • .HORIZEN - horizen (ZEN)
  • .BITCOINCASH - bitcoin cash (BCH)
  • .DOGECOIN - dogecoin (DOGE)
  • .BCH_ABC - bitcoin cash abc (BCHA)
  • .ECASH - ecash (XEC)
  • .DASH - dash (DASH)
  • .BITCOIN_GOLD - bitcoin gold (BTG)
  • .DIGIBYTE - digibyte (DGB)
  • .DGB_SEGWIT - digibyte segwit (DGB)
  • .RAVENCOIN - ravencoin (RVN)
  • .BTC_TESTNET - bitcoin testnet (BTCt)
  • .BTC_SEGWIT_TESTNET - bitcoin segwit testnet (BTCt)
  • .MONA_TESTNET - monacoin testnet (MONAt)
  • .LITE_TESTNET - litecoin testnet (tLTC)
  • .LTC_SEGWIT_TESTNET - litecoin segwit testnet (tLTC)
  • .ZCASH_TESTNET - zcash testnet (TAZ)
  • .BCH_TESTNET - bitcoin cash testnet (tBCH)
  • .DASH_TESTNET - dash testnet (tDASH)
  • .BTG_TESTNET - bitcoin gold testnet (tBTG)
  • .DIGIBYTE_TESTNET - digibyte testnet (tDGB)
  • .DGB_SEGWIT_TESTNET - digibyte segwit testnet (tDGB)
  • .RVN_TESTNET - ravencoin testnet (tRVN)

Parameters

  • coinType: bitcoin networks coin type
  • bitcoinTransaction: (BitcoinTransation)bitcoin transaction parameter

class BitCoinTransaction

This class to be used for bitcoin transaction.
Name
Type
Description
version
UInt32
version of bitcoin transaction. Currently 1 - BCH /Dash/BTG : 2 - ZCASH : 4
input
previous transaction output information to be used
output
coin spending information
locktime
UInt32
locktime for this transaction
optionParam
String
(optional)option parameter for this transaction in case ZCASH

class UnspentTransactionOutput

The class for previous transaction output information to be used for bitcoin network transaction.
Name
Type
Description
prev_tx
String
full of previous transaction data
utxo_idx
UInt32
index of previous transaction output to be sent
type
​BtcTxtype​
bitcoin transaction type for this UTXO
key
String
BIP44 key path for unlocking UTX

class TransactionOutput

The class for coin spending information of Bitcoin network Transaction
Name
Type
Description
value
UInt64
amount of coin to spend. Satoshi unit.
to
[String]
if type is p2pkh or p2sh, Base58Check encoded address of the receiver. The value of the field may follow the rule of version prefix.(BITCOIN_BASE58CHECK) if the type is p2pk , Base58Check encoded non-compressed public key without version prefix. if the type is multisig , Base58Check encoded non-compressed public key (without version prefix) list. if the type is change , BIP44 formatted PATH to get change address. In this case, the transaction type is assumed as p2pkh
type
​BtcTxtype​
bitcoin network transaction type or this field can indicate output as a change

enum BtcTxtype

  • p2Pkh: pay to public key hash
  • p2Pk: pay to public key
  • p2Sh: pay to script hash
  • change: indicate output as a change

Returns

  • result: (Bool) true if successful, false if error occurred
  • txData: signed transaction
Example
let transactionOutput : TransactionOutput = TransactionOutput()
let unspentTransactionOutput : UnspentTransactionOutput = UnspentTransactionOutput()
var unspenttxOut : [UnspentTransactionOutput] = [UnspentTransactionOutput()]
unspenttxOut.append(unspentTransactionOutput)
let BtcTxData : BitcoinTransaction = BitcoinTransaction(version: 0, input: unspenttxOut, output: [transactionOutput], locktime: 0)
// test data
BtcTxData.version = 1
BtcTxData.input[1].prev_tx = "0100000001001355540aa694ddde95548de76168666f33d8fad420fab6c554180846676df1000000006a47304402205089f4b1bdb1f96786f4750af3c16a23c73b60de0fe3cfec0da906a181eea645022078047d56dded692477d35052e9179ac71f79c6ec6b5f49941056c03663255be9012103ac2a317f777d63a6bac857ba07e30920a0f2ebd3f99f15a92b8d295791a971f6ffffffff0230750000000000001976a914848d227771119767a8c08ee0b105633cbff2d6b688ac77180000000000001976a9145dadfc1f7c4548336912f23311b424310d6533c088ac00000000"
BtcTxData.input[1].type = BtcTxtype.p2Pkh
BtcTxData.input[1].utxo_idx = 1
BtcTxData.input[1].key = "m/44'/0'/0'/1/4"
BtcTxData.input[0].prev_tx = "0100000001076524b52baf87fe521e5b8a910fadd91c944f952520677def057e346a96380d000000006a473044022045a30be5dc493c36a3a55fd522b4aa2d795f49bb8b61507e1fca1c15819142c1022010846e11893840e521b277f31c1ca835d352fb582633e5ac95106d0ed52d1654012103b72bcab65c4ea43f4b700220729bdde9638c3bb70cc66b7a0de30738e8241382ffffffff0210270000000000001976a9149189ffd2039f1824de14562e592dc4bccaa57d6e88ac6a290000000000001976a9147046ed0f139552ada485f925e74f6576016fc55e88ac00000000"
BtcTxData.input[0].type = BtcTxtype.p2Pkh
BtcTxData.input[0].utxo_idx = 0
BtcTxData.input[0].key = "m/44'/0'/0'/0/2"
BtcTxData.output[0].to[0] = "1K8EfJgWR16Wo3Ejb3AtMk2mfoeAjmMtDL"
BtcTxData.output[0].type = BtcTxtype.p2Pkh
BtcTxData.output[0].value = 10000
BtcTxData.locktime = 0
DcentMgr.getBitcoinSignedTransaction(coinType: .BITCOIN, bitcoinTransaction: BtcTxData){ (result, txData) in
if result == false {
print("FAIL !!!")
}else{
print(txData)
}
}
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Last modified 2mo ago