state

Documentation

Index

• Constants
• Variables
• type BlockchainCaller
• type ETHResolver
  • func (r ETHResolver) Resolve(ctx context.Context, id, state *big.Int) (*ResolvedState, error)
• type ExtendedVerificationsOptions
• type ResolvedState
  • func Resolve(ctx context.Context, c BlockchainCaller, contractAddress string, ...) (*ResolvedState, error)
• type State
  • func (s *State) Unmarshal(data []interface{}) error
• type TransitionInfo
  • func (ti *TransitionInfo) Unmarshal(data []interface{}) error
• type Unmarshaler
• type VerificationOptions

Constants

const StateABIJSON = "" /* 3702-byte string literal not displayed */

StateABIJSON is JSON ABI of state contract

Variables

var StateABI abi.ABI

StateABI is an ABI of State contarct

Types

type BlockchainCaller

type BlockchainCaller interface {
	// CallContract  cals smart contract. For read operation with single bigInt param
	CallContract(context.Context, ethereum.CallMsg, *big.Int) ([]byte, error)
}

BlockchainCaller is an interface for smart contract call

type ETHResolver

type ETHResolver struct {
	RPCUrl   string
	Contract string
}

ETHResolver resolver for eth blockchains

func (ETHResolver) Resolve

func (r ETHResolver) Resolve(ctx context.Context, id, state *big.Int) (*ResolvedState, error)

Resolve returns Resolved state from blockchain

type ExtendedVerificationsOptions

type ExtendedVerificationsOptions struct {
	VerificationOptions
	OnlyLatestStates             bool
	AcceptedStateTransitionDelay time.Duration
}

ExtendedVerificationsOptions allows to set additional options

type ResolvedState

type ResolvedState struct {
	State               string `json:"state"`
	Latest              bool   `json:"latest"`
	TransitionTimestamp int64  `json:"transition_timestamp"`
}

ResolvedState can be the state verification result

func Resolve

func Resolve(ctx context.Context, c BlockchainCaller, contractAddress string, id, state *big.Int) (*ResolvedState, error)

Resolve is used to resolve identity state rpcURL - url to connect to the blockchain contractAddress is an address of state contract id is base58 identifier e.g. id:11A2HgCZ1pUcY8HoNDMjNWEBQXZdUnL3YVnVCUvR5s state is bigint string representation of identity state

type State

type State struct {
	*big.Int
}

State is structure to represent state from contract

func (*State) Unmarshal

func (s *State) Unmarshal(data []interface{}) error

Unmarshal returns getState contract result as State structure

type TransitionInfo

type TransitionInfo struct {
	ReplacedAtTimestamp *big.Int
	CreatedAtTimestamp  *big.Int
	ReplacedAtBlock     uint64
	CreatedAtBlock      uint64
	ID                  *big.Int
	ReplacedBy          *big.Int
}

TransitionInfo is information about state transition

func (*TransitionInfo) Unmarshal

func (ti *TransitionInfo) Unmarshal(data []interface{}) error

Unmarshal returns contract call result as TransitionInfo structure

type Unmarshaler

type Unmarshaler interface {
	Unmarshal([]interface{}) error
}

Unmarshaler is used for contract call result parser

type VerificationOptions

type VerificationOptions struct {
	Contract string
	RPCUrl   string
}

VerificationOptions is options for state verification