Documentation
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Overview ¶
Package invoke provides the handlers for performing chaincode invocations.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
This section is empty.
Types ¶
type CCFilter ¶
CCFilter returns true if the given chaincode should be included in the invocation chain when computing endorsers.
func NewChainedCCFilter ¶
NewChainedCCFilter returns a chaincode filter that chains multiple filters together. False is returned if at least one of the filters in the chain returns false.
type ClientContext ¶
type ClientContext struct {
CryptoSuite core.CryptoSuite
Discovery fab.DiscoveryService
Selection fab.SelectionService
Membership fab.ChannelMembership
Transactor fab.Transactor
EventService fab.EventService
}
ClientContext contains context parameters for handler execution
type CommitTxHandler ¶
type CommitTxHandler struct {
// contains filtered or unexported fields
}
CommitTxHandler for committing transactions
func NewCommitHandler ¶
func NewCommitHandler(next ...Handler) *CommitTxHandler
NewCommitHandler returns a handler that commits transaction propsal responses
func (*CommitTxHandler) Handle ¶
func (c *CommitTxHandler) Handle(requestContext *RequestContext, clientContext *ClientContext)
Handle handles commit tx
type EndorsementHandler ¶
type EndorsementHandler struct {
// contains filtered or unexported fields
}
EndorsementHandler for handling endorse transactions
func NewEndorsementHandler ¶
func NewEndorsementHandler(next ...Handler) *EndorsementHandler
NewEndorsementHandler returns a handler that endorses a transaction proposal
func NewEndorsementHandlerWithOpts ¶
func NewEndorsementHandlerWithOpts(next Handler, provider TxnHeaderOptsProvider) *EndorsementHandler
NewEndorsementHandlerWithOpts returns a handler that endorses a transaction proposal
func (*EndorsementHandler) Handle ¶
func (e *EndorsementHandler) Handle(requestContext *RequestContext, clientContext *ClientContext)
Handle for endorsing transactions
type EndorsementValidationHandler ¶
type EndorsementValidationHandler struct {
// contains filtered or unexported fields
}
EndorsementValidationHandler for transaction proposal response filtering
func NewEndorsementValidationHandler ¶
func NewEndorsementValidationHandler(next ...Handler) *EndorsementValidationHandler
NewEndorsementValidationHandler returns a handler that validates an endorsement
func (*EndorsementValidationHandler) Handle ¶
func (f *EndorsementValidationHandler) Handle(requestContext *RequestContext, clientContext *ClientContext)
Handle for Filtering proposal response
type Handler ¶
type Handler interface {
Handle(context *RequestContext, clientContext *ClientContext)
}
Handler for chaining transaction executions
func NewExecuteHandler ¶
NewExecuteHandler returns execute handler with chain of SelectAndEndorseHandler, EndorsementValidationHandler, SignatureValidationHandler and CommitHandler
func NewQueryHandler ¶
NewQueryHandler returns query handler with chain of ProposalProcessorHandler, EndorsementHandler, EndorsementValidationHandler and SignatureValidationHandler
func NewSelectAndEndorseHandler ¶
NewSelectAndEndorseHandler returns a new SelectAndEndorseHandler
type Opts ¶
type Opts struct {
Targets []fab.Peer // targets
TargetFilter fab.TargetFilter
TargetSorter fab.TargetSorter
Retry retry.Opts
BeforeRetry retry.BeforeRetryHandler
Timeouts map[fab.TimeoutType]time.Duration
ParentContext reqContext.Context //parent grpc context
CCFilter CCFilter
}
Opts allows the user to specify more advanced options
type ProposalProcessorHandler ¶
type ProposalProcessorHandler struct {
// contains filtered or unexported fields
}
ProposalProcessorHandler for selecting proposal processors
func NewProposalProcessorHandler ¶
func NewProposalProcessorHandler(next ...Handler) *ProposalProcessorHandler
NewProposalProcessorHandler returns a handler that selects proposal processors
func (*ProposalProcessorHandler) Handle ¶
func (h *ProposalProcessorHandler) Handle(requestContext *RequestContext, clientContext *ClientContext)
Handle selects proposal processors
type Request ¶
type Request struct {
ChaincodeID string
Fcn string
Args [][]byte
TransientMap map[string][]byte
// InvocationChain contains meta-data that's used by some Selection Service implementations
// to choose endorsers that satisfy the endorsement policies of all chaincodes involved
// in an invocation chain (i.e. for CC-to-CC invocations).
// Each chaincode may also be associated with a set of private data collection names
// which are used by some Selection Services (e.g. Fabric Selection) to exclude endorsers
// that do NOT have read access to the collections.
// The invoked chaincode (specified by ChaincodeID) may optionally be added to the invocation
// chain along with any collections, otherwise it may be omitted.
InvocationChain []*fab.ChaincodeCall
}
Request contains the parameters to execute transaction
type RequestContext ¶
type RequestContext struct {
Request Request
Opts Opts
Response Response
Error error
RetryHandler retry.Handler
Ctx reqContext.Context
SelectionFilter selectopts.PeerFilter
PeerSorter selectopts.PeerSorter
}
RequestContext contains request, opts, response parameters for handler execution
type Response ¶
type Response struct {
Proposal *fab.TransactionProposal
Responses []*fab.TransactionProposalResponse
TransactionID fab.TransactionID
TxValidationCode pb.TxValidationCode
ChaincodeStatus int32
Payload []byte
}
Response contains response parameters for query and execute transaction
type SelectAndEndorseHandler ¶
type SelectAndEndorseHandler struct {
*EndorsementHandler
// contains filtered or unexported fields
}
SelectAndEndorseHandler selects endorsers according to the policies of the chaincodes in the provided invocation chain and then sends the proposal to those endorsers. The read/write sets from the responses are then checked to see if additional chaincodes were invoked that were not in the original invocation chain. If so, a new endorser set is computed with the additional chaincodes and (if necessary) endorsements are requested from those additional endorsers.
func (*SelectAndEndorseHandler) Handle ¶
func (e *SelectAndEndorseHandler) Handle(requestContext *RequestContext, clientContext *ClientContext)
Handle selects endorsers and sends proposals to the endorsers
type SignatureValidationHandler ¶
type SignatureValidationHandler struct {
// contains filtered or unexported fields
}
SignatureValidationHandler for transaction proposal response filtering
func NewSignatureValidationHandler ¶
func NewSignatureValidationHandler(next ...Handler) *SignatureValidationHandler
NewSignatureValidationHandler returns a handler that validates an endorsement
func (*SignatureValidationHandler) Handle ¶
func (f *SignatureValidationHandler) Handle(requestContext *RequestContext, clientContext *ClientContext)
Handle for Filtering proposal response
type TxnHeaderOptsProvider ¶
type TxnHeaderOptsProvider func() []fab.TxnHeaderOpt
TxnHeaderOptsProvider provides transaction header options which allow the provider to specify a custom creator and/or nonce.
Source Files