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Bitcoin

getBitcoinSignedTransaction

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

Parameters

Parameter
Type
Description
coinType
CoinType
bitcoin coin type.
transaction
bitcoin transaction parameters.

class BitCoinTransaction

This class to be used for bitcoin transaction.
Name
Type
Description
version
int
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
int
locktime for this transaction
optionParam
String
(optional)option parameter

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
int
index of previous transaction output to be sent
type
String
bitcoin transaction type for this UTXO
key
Bip44KeyPath
BIP44 key path for unlocking UTXO

class TransactionOutput

The class for coin spending information of Bitcoin network Transaction
Name
Type
Description
value
long
amount of coin to spend. Satoshi unit.
to
List<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
String
bitcoin network transaction type or this field can indicate output as a change

Returns

String - signed transaction.j

Requirements

Example
UnspentTransactionOutput utxo = new UnspentTransactionOutput("01000000012b09bd990adc6792588225486c336fb2090890341fcbc6ae92c440c3bd266b98010000006a47304402201df6bd2294f9d51496c1be7ea09431fcfee4b0ca9359712c2c381aff9b2d6f070220595a5bb4e9f0f0d1f5fb9a800224c01ac99058d9b491cd7e6a60145bbd26ddca0121028cbb73e589f81937784eaf728cd14ad27984e5415766c04408211af8d9e30ee7ffffffff0127810000000000001976a9141c7254fac600ef7371664a613f0323c6c641cbd288ac00000000", 0, BitCoinTransaction.TxType.p2pkh, Bip44KeyPath.valueOf("m/44'/0'/0'/0/0")) ;
List<UnspentTransactionOutput> input = new ArrayList<>();
input.add(utxo) ;
TransactionOutput txo = new TransactionOutput(10000, Arrays.asList(new String[]{"1Ckii7MpiquSxcmo2ch1UTfQMConz31rpB"}), BitCoinTransaction.TxType.p2pkh ) ;
List<TransactionOutput> output = new ArrayList<>();
output.add(txo) ;
BitCoinTransaction bitCoinTransaction = new BitCoinTransaction.Builder()
.version(1)
.input(input)
.output(output)
.locktime(0)
.build();
String response = mDcentManager.getBitcoinSignedTransaction(CoinType.BITCOIN, bitCoinTransaction);