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proposer.go
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proposer.go
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/*
Copyright SecureKey Technologies Inc. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package fab
import (
reqContext "context"
pb "github.com/hyperledger/fabric-protos-go/peer"
)
// ProposalProcessor simulates transaction proposal, so that a client can submit the result for ordering.
type ProposalProcessor interface {
ProcessTransactionProposal(reqContext.Context, ProcessProposalRequest) (*TransactionProposalResponse, error)
}
// TxnHeaderOptions contains options for creating a Transaction Header
type TxnHeaderOptions struct {
Nonce []byte
Creator []byte
}
// TxnHeaderOpt is a Transaction Header option
type TxnHeaderOpt func(*TxnHeaderOptions)
// WithNonce specifies the nonce to use when creating the Transaction Header
func WithNonce(nonce []byte) TxnHeaderOpt {
return func(options *TxnHeaderOptions) {
options.Nonce = nonce
}
}
// WithCreator specifies the creator to use when creating the Transaction Header
func WithCreator(creator []byte) TxnHeaderOpt {
return func(options *TxnHeaderOptions) {
options.Creator = creator
}
}
// ProposalSender provides the ability for a transaction proposal to be created and sent.
type ProposalSender interface {
CreateTransactionHeader(opts ...TxnHeaderOpt) (TransactionHeader, error)
SendTransactionProposal(*TransactionProposal, []ProposalProcessor) ([]*TransactionProposalResponse, error)
}
// TransactionID provides the identifier of a Fabric transaction proposal.
type TransactionID string
// EmptyTransactionID represents a non-existing transaction (usually due to error).
const EmptyTransactionID = TransactionID("")
// SystemChannel is the Fabric channel for managaing resources.
const SystemChannel = ""
// TransactionHeader provides a handle to transaction metadata.
type TransactionHeader interface {
TransactionID() TransactionID
Creator() []byte
Nonce() []byte
ChannelID() string
}
// ChaincodeInvokeRequest contains the parameters for sending a transaction proposal.
type ChaincodeInvokeRequest struct {
ChaincodeID string
Lang pb.ChaincodeSpec_Type
TransientMap map[string][]byte
Fcn string
Args [][]byte
}
// TransactionProposal contains a marashalled transaction proposal.
type TransactionProposal struct {
TxnID TransactionID
*pb.Proposal
}
// ProcessProposalRequest requests simulation of a proposed transaction from transaction processors.
type ProcessProposalRequest struct {
SignedProposal *pb.SignedProposal
}
// TransactionProposalResponse respresents the result of transaction proposal processing.
type TransactionProposalResponse struct {
Endorser string
// Status is the EndorserStatus
Status int32
// ChaincodeStatus is the status returned by Chaincode
ChaincodeStatus int32
*pb.ProposalResponse
}