Documentation
¶
Index ¶
- Constants
- Variables
- func ArrayFromStackItem(param stackitem.Item) ([]stackitem.Item, error)
- func BigIntFromStackItem(param stackitem.Item) (*big.Int, error)
- func BoolFromStackItem(param stackitem.Item) (bool, error)
- func BytesFromStackItem(param stackitem.Item) ([]byte, error)
- func IntFromStackItem(param stackitem.Item) (int64, error)
- func StringFromStackItem(param stackitem.Item) (string, error)
- type AlphabetKeys
- type Client
- func (c *Client) Committee() (keys.PublicKeys, error)
- func (c *Client) DepositNotary(amount fixedn.Fixed8, delta uint32) (util.Uint256, error)
- func (c *Client) EnableNotarySupport(proxy util.Uint160, opts ...NotaryOption) error
- func (c *Client) GasBalance() (int64, error)
- func (c *Client) GetDesignateHash() util.Uint160
- func (c *Client) GetNotaryDeposit() (int64, error)
- func (c *Client) Invoke(contract util.Uint160, fee fixedn.Fixed8, method string, args ...interface{}) error
- func (c *Client) MagicNumber() uint64
- func (c *Client) NeoFSAlphabetList() (keys.PublicKeys, error)
- func (c *Client) NotaryEnabled() bool
- func (c *Client) NotaryInvoke(contract util.Uint160, fee fixedn.Fixed8, method string, args ...interface{}) error
- func (c *Client) TestInvoke(contract util.Uint160, method string, args ...interface{}) ([]stackitem.Item, error)
- func (c *Client) TransferGas(receiver util.Uint160, amount fixedn.Fixed8) error
- func (c *Client) TxHalt(h util.Uint256) (bool, error)
- func (c *Client) UpdateNeoFSAlphabetList(list keys.PublicKeys) error
- func (c *Client) UpdateNotaryList(list keys.PublicKeys) error
- func (c *Client) Wait(ctx context.Context, n uint32)
- type NotHaltStateError
- type NotaryOption
- type Option
- type StaticClient
- type StaticClientOption
Constants ¶
const HaltState = "HALT"
HaltState returned if TestInvoke function processed without panic.
Variables ¶
var ErrNilClient = errors.New("client is nil")
ErrNilClient is returned by functions that expect a non-nil Client pointer, but received nil.
var ErrNilStaticClient = errors.New("static client is nil")
ErrNilStaticClient is returned by functions that expect a non-nil StaticClient pointer, but received nil.
Functions ¶
func ArrayFromStackItem ¶ added in v0.12.0
ArrayFromStackItem returns the slice contract parameters from passed parameter.
If passed parameter carries boolean false value, (nil, nil) returns.
func BigIntFromStackItem ¶ added in v0.12.0
BigIntFromStackItem receives numerical value from the value of a smart contract parameter.
func BoolFromStackItem ¶ added in v0.12.0
BoolFromStackItem receives boolean value from the value of a smart contract parameter.
func BytesFromStackItem ¶ added in v0.12.0
BytesFromStackItem receives binary value from the value of a smart contract parameter.
func IntFromStackItem ¶ added in v0.12.0
IntFromStackItem receives numerical value from the value of a smart contract parameter.
Types ¶
type AlphabetKeys ¶ added in v0.19.0
type AlphabetKeys func() (keys.PublicKeys, error)
type Client ¶
type Client struct {
// contains filtered or unexported fields
}
Client is a neo-go wrapper that provides smart-contract invocation interface.
Working client must be created via constructor New. Using the Client that has been created with new(Client) expression (or just declaring a Client variable) is unsafe and can lead to panic.
func New ¶
New creates, initializes and returns the Client instance.
If private key is nil, crypto.ErrEmptyPrivateKey is returned.
Other values are set according to provided options, or by default:
- client context: Background;
- dial timeout: 5s;
- blockchain network type: netmode.PrivNet;
- logger: zap.L().
If desired option satisfies the default value, it can be omitted. If multiple options of the same config value are supplied, the option with the highest index in the arguments will be used.
func (*Client) Committee ¶ added in v0.18.0
func (c *Client) Committee() (keys.PublicKeys, error)
Committee returns keys of chain committee from neo native contract.
func (*Client) DepositNotary ¶ added in v0.17.0
DepositNotary calls notary deposit method. Deposit is required to operate with notary contract. It used by notary contract in to produce fallback tx if main tx failed to create. Deposit isn't last forever, so it should be called periodically. Notary support should be enabled in client to use this function.
This function must be invoked after `EnableNotarySupport()` otherwise it throws panic.
func (*Client) EnableNotarySupport ¶ added in v0.17.0
func (c *Client) EnableNotarySupport(proxy util.Uint160, opts ...NotaryOption) error
EnableNotarySupport creates notary structure in client that provides ability for client to get alphabet keys from committee or provided source and use proxy contract script hash to create tx for notary contract.
func (*Client) GasBalance ¶ added in v0.17.0
GasBalance returns GAS amount in the client's wallet.
func (*Client) GetDesignateHash ¶ added in v0.21.0
GetDesignateHash returns hash of the native `RoleManagement` contract.
func (*Client) GetNotaryDeposit ¶ added in v0.17.0
GetNotaryDeposit returns deposit of client's account in notary contract. Notary support should be enabled in client to use this function.
This function must be invoked after `EnableNotarySupport()` otherwise it throws panic.
func (*Client) Invoke ¶
func (c *Client) Invoke(contract util.Uint160, fee fixedn.Fixed8, method string, args ...interface{}) error
Invoke invokes contract method by sending transaction into blockchain. Supported args types: int64, string, util.Uint160, []byte and bool.
func (*Client) MagicNumber ¶ added in v0.16.0
MagicNumber returns the magic number of the network to which the underlying RPC node client is connected.
func (*Client) NeoFSAlphabetList ¶ added in v0.18.0
func (c *Client) NeoFSAlphabetList() (keys.PublicKeys, error)
NeoFSAlphabetList returns keys that stored in NeoFS Alphabet role. Main chain stores alphabet node keys of inner ring there, however side chain stores both alphabet and non alphabet node keys of inner ring.
func (*Client) NotaryEnabled ¶ added in v0.19.0
NotaryEnabled returns true if notary support was enabled in this instance of client by calling `EnableNotarySupport()`. Otherwise returns false.
func (*Client) NotaryInvoke ¶ added in v0.17.0
func (c *Client) NotaryInvoke(contract util.Uint160, fee fixedn.Fixed8, method string, args ...interface{}) error
NotaryInvoke invokes contract method by sending tx to notary contract in blockchain. Fallback tx is a `RET`. If Notary support is not enabled it fallbacks to a simple `Invoke()`.
This function must be invoked after `EnableNotarySupport()` otherwise it throws panic.
func (*Client) TestInvoke ¶
func (c *Client) TestInvoke(contract util.Uint160, method string, args ...interface{}) ([]stackitem.Item, error)
TestInvoke invokes contract method locally in neo-go node. This method should be used to read data from smart-contract.
func (*Client) TransferGas ¶
TransferGas to the receiver from local wallet
func (*Client) TxHalt ¶ added in v0.19.0
TxHalt returns true if transaction has been successfully executed and persisted.
func (*Client) UpdateNeoFSAlphabetList ¶ added in v0.18.0
func (c *Client) UpdateNeoFSAlphabetList(list keys.PublicKeys) error
UpdateNeoFSAlphabetList updates list of alphabet nodes in designate contract. As for side chain list should contain all inner ring nodes. Requires committee multi signature.
This function must be invoked after `EnableNotarySupport()` otherwise it throws panic.
func (*Client) UpdateNotaryList ¶ added in v0.18.0
func (c *Client) UpdateNotaryList(list keys.PublicKeys) error
UpdateNotaryList updates list of notary nodes in designate contract. Requires committee multi signature.
This function must be invoked after `EnableNotarySupport()` otherwise it throws panic.
type NotHaltStateError ¶ added in v0.19.0
type NotHaltStateError struct {
// contains filtered or unexported fields
}
func (*NotHaltStateError) Error ¶ added in v0.19.0
func (e *NotHaltStateError) Error() string
type NotaryOption ¶ added in v0.17.0
type NotaryOption func(*notaryCfg)
func WithAlphabetSource ¶ added in v0.19.0
func WithAlphabetSource(t AlphabetKeys) NotaryOption
WithAlphabetSource returns a notary support option for client that specifies function to return list of alphabet node keys. By default notary subsystem uses committee as a source. This is valid for side chain but notary in main chain should override it.
func WithFallbackTime ¶ added in v0.17.0
func WithFallbackTime(t uint32) NotaryOption
WithFallbackTime returns a notary support option for client that specifies amount of blocks before fallbackTx will be sent. Should be less than TxValidTime.
func WithRoundTime ¶ added in v0.17.0
func WithRoundTime(t uint32) NotaryOption
WithRoundTime returns a notary support option for client that specifies extra blocks to synchronize side chain height diff of inner ring nodes.
func WithTxValidTime ¶ added in v0.17.0
func WithTxValidTime(t uint32) NotaryOption
WithTxValidTime returns a notary support option for client that specifies minimum amount of blocks when mainTx will be valid.
type Option ¶
type Option func(*cfg)
Option is a client configuration change function.
func WithContext ¶
WithContext returns a client constructor option that specifies the neo-go client context.
Ignores nil value.
If option not provided, context.Background() is used.
func WithDialTimeout ¶
WithDialTimeout returns a client constructor option that specifies neo-go client dial timeout duration.
Ignores non-positive value.
If option not provided, 5s timeout is used.
func WithLogger ¶
WithLogger returns a client constructor option that specifies the component for writing log messages.
Ignores nil value.
If option not provided, zap.L() is used.
type StaticClient ¶
type StaticClient struct {
// contains filtered or unexported fields
}
StaticClient is a wrapper over Neo:Morph client that invokes single smart contract methods with fixed fee.
Working static client must be created via constructor NewStatic. Using the StaticClient that has been created with new(StaticClient) expression (or just declaring a StaticClient variable) is unsafe and can lead to panic.
func NewStatic ¶
func NewStatic(client *Client, scriptHash util.Uint160, fee fixedn.Fixed8, opts ...StaticClientOption) (*StaticClient, error)
NewStatic creates, initializes and returns the StaticClient instance.
If provided Client instance is nil, ErrNilClient is returned.
func (StaticClient) Invoke ¶
func (s StaticClient) Invoke(method string, args ...interface{}) error
Invoke calls Invoke method of Client with static internal script hash and fee. Supported args types are the same as in Client.
If TryNotary is provided, calls NotaryInvoke on Client.
func (StaticClient) TestInvoke ¶
func (s StaticClient) TestInvoke(method string, args ...interface{}) ([]stackitem.Item, error)
TestInvoke calls TestInvoke method of Client with static internal script hash.
type StaticClientOption ¶ added in v0.21.0
type StaticClientOption func(*staticOpts)
StaticClientOption allows to set an optional parameter of StaticClient.
func TryNotary ¶ added in v0.21.0
func TryNotary() StaticClientOption
TryNotaryInvoke returns option to enable notary invocation tries.