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Documentation

Index

• Constants
• func AddAllUTXOs(ctx context.Context, utxos UTXOs, client UTXOClient, codec codec.Manager, ...) error
• type ChainUTXOs
  • func NewChainUTXOs(chainID ids.ID, utxos UTXOs) ChainUTXOs
• type UTXOClient
• type UTXOs
  • func FetchState(ctx context.Context, uri string, addrs ids.ShortSet) (p.Context, x.Context, UTXOs, error)
  • func NewUTXOs() UTXOs
• type Wallet
  • func NewWallet(p p.Wallet, x x.Wallet) Wallet
  • func NewWalletFromURI(ctx context.Context, uri string, kc *secp256k1fx.Keychain) (Wallet, error)
  • func NewWalletWithOptions(w Wallet, options ...common.Option) Wallet
  • func NewWalletWithState(uri string, pCTX p.Context, xCTX x.Context, utxos UTXOs, ...) Wallet

Examples

• Wallet

Constants

const (
	MainnetAPIURI = "https://api.djtx.network"
	FujiAPIURI    = "https://api.djtx-test.network"
	LocalAPIURI   = "http://localhost:9650"
)

Functions

func AddAllUTXOs

func AddAllUTXOs(
	ctx context.Context,
	utxos UTXOs,
	client UTXOClient,
	codec codec.Manager,
	sourceChainID ids.ID,
	destinationChainID ids.ID,
	addrs []ids.ShortID,
) error

AddAllUTXOs fetches all the UTXOs referenced by [addresses] that were sent from [sourceChainID] to [destinationChainID] from the [client]. It then uses codec to parse the returned UTXOs and it adds them into [utxos]. If [ctx] expires, then the returned error will be immediately reported.

Types

type ChainUTXOs

type ChainUTXOs interface {
	AddUTXO(ctx context.Context, destinationChainID ids.ID, utxo *djtx.UTXO) error
	RemoveUTXO(ctx context.Context, sourceChainID, utxoID ids.ID) error

	UTXOs(ctx context.Context, sourceChainID ids.ID) ([]*djtx.UTXO, error)
	GetUTXO(ctx context.Context, sourceChainID, utxoID ids.ID) (*djtx.UTXO, error)
}

func NewChainUTXOs

func NewChainUTXOs(chainID ids.ID, utxos UTXOs) ChainUTXOs

type UTXOClient

type UTXOClient interface {
	GetAtomicUTXOs(
		ctx context.Context,
		addrs []ids.ShortID,
		sourceChain string,
		limit uint32,
		startAddress ids.ShortID,
		startUTXOID ids.ID,
		options ...rpc.Option,
	) ([][]byte, ids.ShortID, ids.ID, error)
}

type UTXOs

type UTXOs interface {
	AddUTXO(ctx context.Context, sourceChainID, destinationChainID ids.ID, utxo *djtx.UTXO) error
	RemoveUTXO(ctx context.Context, sourceChainID, destinationChainID, utxoID ids.ID) error

	UTXOs(ctx context.Context, sourceChainID, destinationChainID ids.ID) ([]*djtx.UTXO, error)
	GetUTXO(ctx context.Context, sourceChainID, destinationChainID, utxoID ids.ID) (*djtx.UTXO, error)
}

func FetchState

func FetchState(ctx context.Context, uri string, addrs ids.ShortSet) (p.Context, x.Context, UTXOs, error)

func NewUTXOs

func NewUTXOs() UTXOs

type Wallet

type Wallet interface {
	P() p.Wallet
	X() x.Wallet
}

Wallet provides chain wallets for the primary network.

Example

ctx := context.Background()
kc := secp256k1fx.NewKeychain(genesis.EWOQKey)

// NewWalletFromURI fetches the available UTXOs owned by [kc] on the network
// that [LocalAPIURI] is hosting.
walletSyncStartTime := time.Now()
wallet, err := NewWalletFromURI(ctx, LocalAPIURI, kc)
if err != nil {
	fmt.Printf("failed to initialize wallet with: %s\n", err)
	return
}
fmt.Printf("synced wallet in %s\n", time.Since(walletSyncStartTime))

// Get the P-chain and the X-chain wallets
pWallet := wallet.P()
xWallet := wallet.X()

// Pull out useful constants to use when issuing transactions.
xChainID := xWallet.BlockchainID()
djtxAssetID := xWallet.DJTXAssetID()
owner := &secp256k1fx.OutputOwners{
	Threshold: 1,
	Addrs: []ids.ShortID{
		genesis.EWOQKey.PublicKey().Address(),
	},
}

// Send 100 schmeckles to the P-chain.
exportStartTime := time.Now()
exportTxID, err := xWallet.IssueExportTx(
	constants.PlatformChainID,
	[]*djtx.TransferableOutput{
		{
			Asset: djtx.Asset{
				ID: djtxAssetID,
			},
			Out: &secp256k1fx.TransferOutput{
				Amt:          100 * units.Schmeckle,
				OutputOwners: *owner,
			},
		},
	},
)
if err != nil {
	fmt.Printf("failed to issue X->P export transaction with: %s\n", err)
	return
}
fmt.Printf("issued X->P export %s in %s\n", exportTxID, time.Since(exportStartTime))

// Import the 100 schmeckles from the X-chain into the P-chain.
importStartTime := time.Now()
importTxID, err := pWallet.IssueImportTx(xChainID, owner)
if err != nil {
	fmt.Printf("failed to issue X->P import transaction with: %s\n", err)
	return
}
fmt.Printf("issued X->P import %s in %s\n", importTxID, time.Since(importStartTime))

func NewWallet

func NewWallet(p p.Wallet, x x.Wallet) Wallet

func NewWalletFromURI

func NewWalletFromURI(ctx context.Context, uri string, kc *secp256k1fx.Keychain) (Wallet, error)

NewWalletFromURI returns a wallet that supports issuing transactions to the chains living in the primary network to a provided [uri].

On creation, the wallet attaches to the provided [uri] and fetches all UTXOs that reference any of the keys contained in [kc]. If the UTXOs are modified through an external issuance process, such as another instance of the wallet, the UTXOs may become out of sync.

The wallet manages all UTXOs locally, and performs all tx signing locally.

func NewWalletWithOptions

func NewWalletWithOptions(w Wallet, options ...common.Option) Wallet

func NewWalletWithState

func NewWalletWithState(
	uri string,
	pCTX p.Context,
	xCTX x.Context,
	utxos UTXOs,
	kc *secp256k1fx.Keychain,
) Wallet