btc

package
v4.0.0+incompatible Latest Latest
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 Go to latest Published: Aug 2, 2018 License: Apache-2.0 Imports: 37 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func SignTransaction 

func SignTransaction(
	keystores keystore.Keystores,
	txProposal *maketx.TxProposal,
	previousOutputs map[wire.OutPoint]*transactions.SpendableOutput,
	getAddress func(blockchain.ScriptHashHex) *addresses.AccountAddress,
	log *logrus.Entry,
) error

SignTransaction signs all inputs. It assumes all outputs spent belong to this wallet. previousOutputs must contain all outputs which are spent by the transaction.

Types

type Account 

type Account struct {
	locker.Locker
	// contains filtered or unexported fields
}

Account is a account whose addresses are derived from an xpub.

func NewAccount 

func NewAccount(
	coin *Coin,
	dbFolder string,
	code string,
	name string,
	getSigningConfiguration func() (*signing.Configuration, error),
	keystores keystore.Keystores,
	onEvent func(Event),
	log *logrus.Entry,
) *Account

NewAccount creats a new Account.

func (*Account) Balance 

func (account *Account) Balance() *transactions.Balance

Balance wraps transaction.Transactions.Balance()

func (*Account) Close 

func (account *Account) Close()

Close stops the account.

func (*Account) Code 

func (account *Account) Code() string

Code returns the code of the account.

func (*Account) Coin 

func (account *Account) Coin() *Coin

Coin returns the coin of the account.

func (*Account) ConvertToLegacyAddress 

func (account *Account) ConvertToLegacyAddress(scriptHashHex blockchain.ScriptHashHex) (btcutil.Address, error)

ConvertToLegacyAddress converts a ltc p2sh address to the legacy format (starting with '3'). Returns an error for non litecoin p2sh accounts.

func (*Account) FeeTargets 

func (account *Account) FeeTargets() ([]*FeeTarget, FeeTargetCode)

FeeTargets returns the fee targets and the default fee target.

func (*Account) GetUnusedReceiveAddresses 

func (account *Account) GetUnusedReceiveAddresses() []*addresses.AccountAddress

GetUnusedReceiveAddresses returns a number of unused addresses.

func (*Account) HeadersStatus 

func (account *Account) HeadersStatus() (*headers.Status, error)

HeadersStatus returns the status of the headers.

func (*Account) Init 

func (account *Account) Init() error

Init initializes the account.

func (*Account) InitialSyncDone 

func (account *Account) InitialSyncDone() bool

InitialSyncDone indicates whether the account has loaded and finished the initial sync of the addresses.

func (*Account) Keystores 

func (account *Account) Keystores() keystore.Keystores

Keystores returns the keystores of the account.

func (*Account) MarshalJSON 

func (account *Account) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler.

func (*Account) Offline 

func (account *Account) Offline() bool

Offline returns true if the account is disconnected from the blockchain.

func (*Account) SendTx 

func (account *Account) SendTx(
	recipientAddress string,
	amount SendAmount,
	feeTargetCode FeeTargetCode,
	selectedUTXOs map[wire.OutPoint]struct{},
) error

SendTx creates, signs and sends tx which sends `amount` to the recipient.

func (*Account) SpendableOutputs 

func (account *Account) SpendableOutputs() []*SpendableOutput

SpendableOutputs returns the utxo set, sorted by the value descending.

func (*Account) String 

func (account *Account) String() string

String returns a representation of the account for logging.

func (*Account) Transactions 

func (account *Account) Transactions() []*transactions.TxInfo

Transactions wraps transaction.Transactions.Transactions()

func (*Account) TxProposal 

func (account *Account) TxProposal(
	recipientAddress string,
	amount SendAmount,
	feeTargetCode FeeTargetCode,
	selectedUTXOs map[wire.OutPoint]struct{},
) (
	btcutil.Amount, btcutil.Amount, btcutil.Amount, error)

TxProposal creates a tx from the relevant input and returns information about it for display in the UI (the output amount and the fee). At the same time, it validates the input.

func (*Account) VerifyAddress 

func (account *Account) VerifyAddress(scriptHashHex blockchain.ScriptHashHex) (bool, error)

VerifyAddress verifies a receive address on a keystore. Returns false, nil if no secure output exists.

type Coin 

type Coin struct {
	observable.Implementation
	// contains filtered or unexported fields
}

Coin models a Bitcoin-related coin.

func NewCoin 

func NewCoin(
	name string,
	unit string,
	net *chaincfg.Params,
	dbFolder string,
	servers []*rpc.ServerInfo,
	blockExplorerTxPrefix string,
	ratesUpdater coinpkg.RatesUpdater,
) *Coin

NewCoin creates a new coin with the given parameters.

func (*Coin) Blockchain 

func (coin *Coin) Blockchain() blockchain.Interface

Blockchain connects to a blockchain backend.

func (*Coin) FormatAmount 

func (coin *Coin) FormatAmount(amount int64) string

FormatAmount implements coin.Coin.

func (*Coin) FormatAmountAsJSON 

func (coin *Coin) FormatAmountAsJSON(amount int64) coinpkg.FormattedAmount

FormatAmountAsJSON implements coin.Coin.

func (*Coin) Headers 

func (coin *Coin) Headers() *headers.Headers

Headers returns the coin headers.

func (*Coin) Init 

func (coin *Coin) Init()

Init initializes the coin - blockchain and headers.

func (*Coin) Name 

func (coin *Coin) Name() string

Name returns the coin's name.

func (*Coin) Net 

func (coin *Coin) Net() *chaincfg.Params

Net returns the coin's network params.

func (*Coin) RatesUpdater 

func (coin *Coin) RatesUpdater() coinpkg.RatesUpdater

RatesUpdater returns current exchange rates.

func (*Coin) String 

func (coin *Coin) String() string

func (*Coin) Unit 

func (coin *Coin) Unit() string

Unit implements coin.Coin.

type Event 

type Event string

Event instances are sent to the onEvent callback of the wallet. 

const (
	// EventStatusChanged is fired when the status changes. Check the status using Initialized().
	EventStatusChanged Event = "statusChanged"

	// EventSyncStarted is fired when syncing with the blockchain starts. This happens in the very
	// beginning for the initial sync, and repeatedly afterwards when the wallet is updated (new
	// transactions, confirmations, etc.).
	EventSyncStarted Event = "syncstarted"

	// EventSyncDone follows EventSyncStarted.
	EventSyncDone Event = "syncdone"

	// EventHeadersSynced is fired when the headers finished syncing.
	EventHeadersSynced Event = "headersSynced"

	// EventFeeTargetsChanged is fired when the fee targets change.
	EventFeeTargetsChanged Event = "feeTargetsChanged"
)

type FeeTarget 

type FeeTarget struct {
	// Blocks is the target number of blocks in which the transaction should be confirmed.
	Blocks int

	// Code is the identifier for the UI.
	Code FeeTargetCode

	// FeeRatePerKb is the fee rate needed for this target. Can be nil until populated.
	FeeRatePerKb *btcutil.Amount
}

FeeTarget contains the fee rate for a specific fee target.

type FeeTargetCode 

type FeeTargetCode string

FeeTargetCode models the code of a fee target. See the constants below. 

const (
	// FeeTargetCodeLow is the low priority fee target.
	FeeTargetCodeLow FeeTargetCode = "low"

	// FeeTargetCodeEconomy is the economy priority fee target.
	FeeTargetCodeEconomy FeeTargetCode = "economy"

	// FeeTargetCodeNormal is the normal priority fee target.
	FeeTargetCodeNormal FeeTargetCode = "normal"

	// FeeTargetCodeHigh is the high priority fee target.
	FeeTargetCodeHigh FeeTargetCode = "high"
)

func NewFeeTargetCode 

func NewFeeTargetCode(code string, log *logrus.Entry) (FeeTargetCode, error)

NewFeeTargetCode checks if the code is valid and returns a FeeTargetCode in that case.

type Interface 

type Interface interface {
	Code() string
	Coin() *Coin
	Init() error
	InitialSyncDone() bool
	Offline() bool
	Close()
	Transactions() []*transactions.TxInfo
	Balance() *transactions.Balance
	SendTx(string, SendAmount, FeeTargetCode, map[wire.OutPoint]struct{}) error
	FeeTargets() ([]*FeeTarget, FeeTargetCode)
	TxProposal(string, SendAmount, FeeTargetCode, map[wire.OutPoint]struct{}) (
		btcutil.Amount, btcutil.Amount, btcutil.Amount, error)
	GetUnusedReceiveAddresses() []*addresses.AccountAddress
	VerifyAddress(blockchain.ScriptHashHex) (bool, error)
	ConvertToLegacyAddress(blockchain.ScriptHashHex) (btcutil.Address, error)
	Keystores() keystore.Keystores
	HeadersStatus() (*headers.Status, error)
	SpendableOutputs() []*SpendableOutput
}

Interface is the API of a Account.

type ProposedTransaction 

type ProposedTransaction struct {
	TXProposal      *maketx.TxProposal
	PreviousOutputs map[wire.OutPoint]*transactions.SpendableOutput
	GetAddress      func(blockchain.ScriptHashHex) *addresses.AccountAddress
	// Signatures collects the signatures (signatures[transactionInput][cosignerIndex]).
	Signatures [][]*btcec.Signature
	SigHashes  *txscript.TxSigHashes
}

ProposedTransaction contains all the info needed to sign a btc transaction.

type RatesUpdater 

type RatesUpdater struct {
	observable.Implementation
	// contains filtered or unexported fields
}

RatesUpdater implements coin.RatesUpdater.

func NewRatesUpdater 

func NewRatesUpdater() *RatesUpdater

NewRatesUpdater returns a new rates updater.

func (*RatesUpdater) Last 

func (updater *RatesUpdater) Last() map[string]map[string]float64

Last returns the last rates for a given coin and fiat or nil if not available.

type SendAmount 

type SendAmount struct {
	// contains filtered or unexported fields
}

SendAmount is either a concrete amount, or "all"/"max".

func NewSendAmount 

func NewSendAmount(amount btcutil.Amount) (SendAmount, error)

NewSendAmount creates a new SendAmount based on a concrete amount.

func NewSendAmountAll 

func NewSendAmountAll() SendAmount

NewSendAmountAll creates a new Sendall-amount.

type SpendableOutput 

type SpendableOutput struct {
	*transactions.SpendableOutput
	OutPoint wire.OutPoint
}

SpendableOutput is an unspent coin.

type Status 

type Status string

Status indicates the connection and initialization status. 

const (
	// AccountSynced indicates that the account is synced.
	AccountSynced Status = "accountSynced"

	// AccountNotSynced indicates that the account is initialized, but not yet fully synced.
	AccountNotSynced Status = "accountNotSynced"

	// AccountDisabled indicates that the account has not yet been initialized.
	AccountDisabled Status = "accountDisabled"

	// OfflineMode indicates that the connection to the blockchain network could not be established.
	OfflineMode Status = "offlineMode"
)

type TxValidationError 

type TxValidationError string

TxValidationError represents errors in the tx proposal input data.

func (TxValidationError) Error 

func (err TxValidationError) Error() string

Source Files

View all Source files

Directories

Path Synopsis
test
mocks
Code generated by mockery v1.0.0.
 Code generated by mockery v1.0.0.
client
Package client implements an Electrum JSON RPC client.
 Package client implements an Electrum JSON RPC client.
mocks
Code generated by mockery v1.0.0.
 Code generated by mockery v1.0.0.
Package maketx provides transaction creation code for wallets.
 Package maketx provides transaction creation code for wallets.

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