api

Documentation

Index

• type Client
• type ClientService
• type CommitType
  • func (ct CommitType) String() string
• type Config
• type Creator
• type EndorseTxRequest
• type EndorsedCallback
• type Namespace
• type PeerConfig
• type PeerFilter
• type PeerFilterOpts
• type PeerFilterType
• type SnapTransactionRequest

Types

type Client

type Client interface {
	// EndorseTransaction request endorsement from the peers on this channel
	// for a transaction with the given parameters
	// @param {EndorseTxRequest} request identifies the chaincode to invoke
	// @returns {Response} responses from endorsers
	// @returns {error} error, if any
	EndorseTransaction(endorseRequest *EndorseTxRequest) (*channel.Response, errors.Error)

	// CommitTransaction request commit from the peers on this channel
	// for a transaction with the given parameters
	// @param {EndorseTxRequest} request identifies the chaincode to invoke
	// @param {registerTxEvent} is bool to register tx event
	// @param {EndorsedCallback} is a function that is invoked after the endorsement
	// @returns {Response} responses from endorsers
	// @returns {bool} commit flag
	// @returns {error} error, if any
	CommitTransaction(endorseRequest *EndorseTxRequest, registerTxEvent bool, callback EndorsedCallback) (*channel.Response, bool, errors.Error)

	// VerifyTxnProposalSignature verify TxnProposalSignature against msp
	// @param {[]byte} Txn Proposal
	// @returns {error} error, if any
	VerifyTxnProposalSignature([]byte) errors.Error

	// GetLocalPeer gets the local fab api peer
	// @returns {fabApi.Peer} fab api peer
	GetLocalPeer() (fabApi.Peer, error)

	// ChannelConfig returns the channel configuration
	ChannelConfig() (fabApi.ChannelCfg, error)

	// EventService returns the event service
	EventService() (fabApi.EventService, error)

	// GetDiscoveredPeer returns the peer from the Discovery service that matches the given URL
	// Returns error if no matching peer is found
	GetDiscoveredPeer(url string) (fabApi.Peer, error)
}

Client is a wrapper interface around the fabric client It enables multithreaded access to the client

type ClientService

type ClientService interface {
	GetFabricClient(channelID string) (Client, error)
}

ClientService interface

type CommitType

type CommitType int

CommitType specifies how commits should be handled

const (
	// CommitOnWrite indicates that the transaction should be committed only if
	// the consumer chaincode produces a write-set
	CommitOnWrite CommitType = iota

	// Commit indicates that the transaction should be committed
	Commit

	// NoCommit indicates that the transaction should not be committed
	NoCommit
)

func (CommitType) String

func (ct CommitType) String() string

String returns the string value of CommitType

type Config

type Config interface {
	GetLocalPeer() (*PeerConfig, errors.Error)
	GetMspID() string
	GetMspConfigPath() string
	GetTLSRootCertPath() string
	GetTLSRootCert() *x509.Certificate
	GetTLSCertPath() string
	GetTLSCert() *x509.Certificate
	GetTLSCertPem() []byte
	GetTLSKeyPath() string
	GetConfigPath(path string) string
	GetPeerConfig() *viper.Viper
	GetConfigBytes() []byte
	GetCryptoProvider() (string, errors.Error)
	GetEndorserSelectionMaxAttempts() int
	GetEndorserSelectionInterval() time.Duration
	RetryOpts() retry.Opts
	CCErrorRetryableCodes() ([]int32, errors.Error)
	GetClientCacheRefreshInterval() time.Duration
}

Config configuration interface

type Creator

type Creator struct {
	// base64 encoded identity of the delegate
	Identity string `json:"identity,omitempty"`
}

Creator is received from the delegate when its identity doesn't match the TxID pre-calculated by this handler. It is received as JSON in the proposal response payload.

type EndorseTxRequest

type EndorseTxRequest struct {
	// ChaincodeID identifies the chaincode to invoke
	ChaincodeID string
	// Args to pass to the chaincode. Args[0] is the function name
	Args []string
	// TransientData map (optional)
	TransientData map[string][]byte
	// Targets for the transaction (optional)
	Targets []fabApi.Peer
	// ChaincodeIDs contains all of the chaincodes that should be included
	// when evaluating endorsement policy (including the chaincode being invoked).
	// If empty then only the invoked chaincode is included. (optional)
	ChaincodeIDs []string
	// PeerFilter filters out peers using application-specific logic (optional)
	PeerFilter PeerFilter
	// CommitType specifies how commits should be handled (default CommitOnWrite)
	CommitType CommitType
	// RWSetIgnoreNameSpace rw set ignore list
	RWSetIgnoreNameSpace []Namespace
	//TransactionID txn id
	TransactionID string
	//Nonce nonce
	Nonce []byte
}

EndorseTxRequest contains the parameters for the EndorseTransaction function

type EndorsedCallback

type EndorsedCallback func(invoke.Response) error

EndorsedCallback is a function that is invoked after the endorsement phase of CommitTransaction. (Used in unit tests.)

type Namespace

type Namespace struct {
	Name        string
	Collections []string
}

Namespace contains a chaincode name and an optional set of private data collections to ignore

type PeerConfig

type PeerConfig struct {
	Host      string
	Port      int
	EventHost string
	EventPort int
	MSPid     []byte
}

PeerConfig represents the server addresses of a fabric peer

type PeerFilter

type PeerFilter interface {
	// Accept returns true if the given peer should be included in the set of endorsers
	Accept(peer fabApi.Peer) bool
}

PeerFilter is applied to peers selected for endorsement and removes those groups that don't pass the filter acceptance test

type PeerFilterOpts

type PeerFilterOpts struct {
	Type PeerFilterType
	Args []string
}

PeerFilterOpts specifies the peer filter type and includes any args required by the peer filter

type PeerFilterType

type PeerFilterType string

PeerFilterType is the type name of the Peer Filter

const (
	// MinBlockHeightPeerFilterType is a peer filter that selects peers
	// whose block height is at least the height of the local peer on which
	// the TxSnap is being invoked.
	// Required Args:
	// - arg[0]: Channel ID
	MinBlockHeightPeerFilterType PeerFilterType = "MinBlockHeight"
)

type SnapTransactionRequest

type SnapTransactionRequest struct {
	ChannelID            string            // required channel ID
	ChaincodeID          string            // required chaincode ID
	TransientMap         map[string][]byte // optional transient Map
	EndorserArgs         [][]byte          // optional args for endorsement
	CCIDsForEndorsement  []string          // optional ccIDs For endorsement selection
	RegisterTxEvent      bool              // optional args for register Tx event (default is false)
	PeerFilter           *PeerFilterOpts   // optional peer filter
	CommitType           CommitType        // optional specifies how commits should be handled (default CommitOnWrite)
	RWSetIgnoreNameSpace []Namespace       // RWSetIgnoreNameSpace rw set ignore list
	TransactionID        string            // TransactionID txn id
	Nonce                []byte            // Nonce nonce

}

SnapTransactionRequest type will be passed as argument to a transaction snap ChannelID and ChaincodeID are mandatory fields