txn

package
Version: v1.0.0-alpha4 Latest Latest
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Published: Jun 13, 2018 License: Apache-2.0 Imports: 19 Imported by: 0

Documentation

Overview

Package txn enables creating, endorsing and sending transactions to Fabric peers and orderers.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BroadcastPayload

func BroadcastPayload(reqCtx reqContext.Context, payload *common.Payload, orderers []fab.Orderer) (*fab.TransactionResponse, error)

BroadcastPayload will send the given payload to some orderer, picking random endpoints until all are exhausted

func CreateChaincodeInvokeProposal

func CreateChaincodeInvokeProposal(txh fab.TransactionHeader, request fab.ChaincodeInvokeRequest) (*fab.TransactionProposal, error)

CreateChaincodeInvokeProposal creates a proposal for transaction.

func CreateChannelHeader

func CreateChannelHeader(headerType common.HeaderType, opts ChannelHeaderOpts) (*common.ChannelHeader, error)

CreateChannelHeader is a utility method to build a common chain header (TODO refactor)

TODO: Determine if this function should be exported after refactoring is completed.

func CreatePayload

func CreatePayload(txh *TransactionHeader, channelHeader *common.ChannelHeader, data []byte) (*common.Payload, error)

CreatePayload creates a slice of payload bytes from a ChannelHeader and a data slice.

func CreateSignatureHeader

func CreateSignatureHeader(txh *TransactionHeader) (*common.SignatureHeader, error)

CreateSignatureHeader creates a SignatureHeader based on the nonce and creator of the transaction header.

func New

func New(request fab.TransactionRequest) (*fab.Transaction, error)

New create a transaction with proposal response, following the endorsement policy.

func Send

func Send(reqCtx reqContext.Context, tx *fab.Transaction, orderers []fab.Orderer) (*fab.TransactionResponse, error)

Send send a transaction to the chain’s orderer service (one or more orderer endpoints) for consensus and committing to the ledger.

func SendPayload

func SendPayload(reqCtx reqContext.Context, payload *common.Payload, orderers []fab.Orderer) (*common.Block, error)

SendPayload sends the given payload to each orderer and returns a block response

func SendProposal

func SendProposal(reqCtx reqContext.Context, proposal *fab.TransactionProposal, targets []fab.ProposalProcessor) ([]*fab.TransactionProposalResponse, error)

SendProposal sends a TransactionProposal to ProposalProcessor.

Types

type CCProposalType

type CCProposalType int

CCProposalType reflects transitions in the chaincode lifecycle

const (
	Instantiate CCProposalType = iota
	Upgrade
)

Define chaincode proposal types

type ChannelHeaderOpts

type ChannelHeaderOpts struct {
	TxnHeader   *TransactionHeader
	Epoch       uint64
	ChaincodeID string
	Timestamp   time.Time
	TLSCertHash []byte
}

ChannelHeaderOpts holds the parameters to create a ChannelHeader.

type TransactionHeader

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

TransactionHeader contains metadata for a transaction created by the SDK.

func NewHeader

func NewHeader(ctx contextApi.Client, channelID string) (*TransactionHeader, error)

NewHeader computes a TransactionID from the current user context and holds metadata to create transaction proposals.

func (*TransactionHeader) ChannelID

func (th *TransactionHeader) ChannelID() string

ChannelID returns the transaction's target channel identifier.

func (*TransactionHeader) Creator

func (th *TransactionHeader) Creator() []byte

Creator returns the transaction creator's identity bytes.

func (*TransactionHeader) Nonce

func (th *TransactionHeader) Nonce() []byte

Nonce returns the transaction's generated nonce.

func (*TransactionHeader) TransactionID

func (th *TransactionHeader) TransactionID() fab.TransactionID

TransactionID returns the transaction's computed identifier.

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