network

package
v5.4.39 Latest Latest
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 Go to latest Published: Sep 21, 2026 License: GPL-3.0 Imports: 32 Imported by: 0

Documentation

Overview

Package network is a generated GoMock package.

Index

Constants

View Source 
const AnyPayloadType = "*"

AnyPayloadType is a wildcard that matches with any payload type.

View Source 
const MaxReprocessBufferSize = 1000000

MaxReprocessBufferSize is the maximum number of events for Nats resulting from a Reprocess

View Source 
const (
	// ModuleName specifies the name of this module.
	ModuleName = "Network"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type Config 

type Config struct {
	// Socket address for gRPC to listen on
	GrpcAddr string `koanf:"grpcaddr"`
	// ConnectionTimeout specifies the timeout before an outbound connection attempt times out (in milliseconds).
	ConnectionTimeout int `koanf:"connectiontimeout"`
	// MaxBackoff specifies the maximum backoff for outbound connections
	MaxBackoff time.Duration `koanf:"maxbackoff"`
	// IdleTimeout specifies the period without any received message after which a connection to a peer is closed.
	// Peers send gossip and diagnostics messages at a fixed interval, so a silent connection is a dead one. Zero disables the check.
	IdleTimeout time.Duration `koanf:"idletimeout"`
	// Public address of this nodes other nodes can use to connect to this node.
	BootstrapNodes []string `koanf:"bootstrapnodes"`
	// Protocols is the list of network protocols to enable on the server. They are specified by version (v1, v2).
	Protocols []int `koanf:"protocols"`
	// EnableDiscovery tells the node to automatically connect to other nodes
	EnableDiscovery bool `koanf:"enablediscovery"`

	// NodeDID defines the DID of the organization that operates this node, typically a vendor for EPD software.
	// It is used to identify it on the network.
	NodeDID string `koanf:"nodedid"`

	// ProtocolV2 specifies config for protocol v2
	ProtocolV2 v2.Config `koanf:"v2"`
}

Config holds the config for Transactions

func DefaultConfig 

func DefaultConfig() Config

DefaultConfig returns the default NetworkEngine configuration.

func TestNetworkConfig 

func TestNetworkConfig() Config

TestNetworkConfig creates new network config with a test directory as data path.

func (Config) IsProtocolEnabled 

func (c Config) IsProtocolEnabled(version int) bool

IsProtocolEnabled returns true if the protocol is enabled, otherwise false.

type EventType 

type EventType string

EventType defines a type for specifying the kind of events that can be published/subscribed on the Network.

type MockTransactions 

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

MockTransactions is a mock of Transactions interface.

func NewMockTransactions 

func NewMockTransactions(ctrl *gomock.Controller) *MockTransactions

NewMockTransactions creates a new mock instance.

func (*MockTransactions) AddressBook 

func (m *MockTransactions) AddressBook() []transport.Contact

AddressBook mocks base method.

func (*MockTransactions) CleanupSubscriberEvents 

func (m *MockTransactions) CleanupSubscriberEvents(subcriberName, errorPrefix string) error

CleanupSubscriberEvents mocks base method.

func (*MockTransactions) CreateTransaction 

func (m *MockTransactions) CreateTransaction(ctx context.Context, spec Template) (dag.Transaction, error)

CreateTransaction mocks base method.

func (*MockTransactions) DiscoverServices 

func (m *MockTransactions) DiscoverServices(updatedDID did.DID)

DiscoverServices mocks base method.

func (*MockTransactions) EXPECT 

func (m *MockTransactions) EXPECT() *MockTransactionsMockRecorder

EXPECT returns an object that allows the caller to indicate expected use.

func (*MockTransactions) GetTransaction 

func (m *MockTransactions) GetTransaction(transactionRef hash.SHA256Hash) (dag.Transaction, error)

GetTransaction mocks base method.

func (*MockTransactions) GetTransactionPayload 

func (m *MockTransactions) GetTransactionPayload(transactionRef hash.SHA256Hash) ([]byte, error)

GetTransactionPayload mocks base method.

func (*MockTransactions) ListTransactionsInRange 

func (m *MockTransactions) ListTransactionsInRange(startInclusive, endExclusive uint32) ([]dag.Transaction, error)

ListTransactionsInRange mocks base method.

func (*MockTransactions) PeerDiagnostics 

func (m *MockTransactions) PeerDiagnostics() map[transport.PeerID]transport.Diagnostics

PeerDiagnostics mocks base method.

func (*MockTransactions) Reprocess 

func (m *MockTransactions) Reprocess(ctx context.Context, contentType string) (*ReprocessReport, error)

Reprocess mocks base method.

func (*MockTransactions) Subscribe 

func (m *MockTransactions) Subscribe(name string, receiver dag.ReceiverFn, filters ...SubscriberOption) error

Subscribe mocks base method.

func (*MockTransactions) Subscribers 

func (m *MockTransactions) Subscribers() []dag.Notifier

Subscribers mocks base method.

func (*MockTransactions) WithPersistency 

func (m *MockTransactions) WithPersistency() SubscriberOption

WithPersistency mocks base method.

type MockTransactionsMockRecorder 

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

MockTransactionsMockRecorder is the mock recorder for MockTransactions.

func (*MockTransactionsMockRecorder) AddressBook 

func (mr *MockTransactionsMockRecorder) AddressBook() *gomock.Call

AddressBook indicates an expected call of AddressBook.

func (*MockTransactionsMockRecorder) CleanupSubscriberEvents 

func (mr *MockTransactionsMockRecorder) CleanupSubscriberEvents(subcriberName, errorPrefix interface{}) *gomock.Call

CleanupSubscriberEvents indicates an expected call of CleanupSubscriberEvents.

func (*MockTransactionsMockRecorder) CreateTransaction 

func (mr *MockTransactionsMockRecorder) CreateTransaction(ctx, spec interface{}) *gomock.Call

CreateTransaction indicates an expected call of CreateTransaction.

func (*MockTransactionsMockRecorder) DiscoverServices 

func (mr *MockTransactionsMockRecorder) DiscoverServices(updatedDID interface{}) *gomock.Call

DiscoverServices indicates an expected call of DiscoverServices.

func (*MockTransactionsMockRecorder) GetTransaction 

func (mr *MockTransactionsMockRecorder) GetTransaction(transactionRef interface{}) *gomock.Call

GetTransaction indicates an expected call of GetTransaction.

func (*MockTransactionsMockRecorder) GetTransactionPayload 

func (mr *MockTransactionsMockRecorder) GetTransactionPayload(transactionRef interface{}) *gomock.Call

GetTransactionPayload indicates an expected call of GetTransactionPayload.

func (*MockTransactionsMockRecorder) ListTransactionsInRange 

func (mr *MockTransactionsMockRecorder) ListTransactionsInRange(startInclusive, endExclusive interface{}) *gomock.Call

ListTransactionsInRange indicates an expected call of ListTransactionsInRange.

func (*MockTransactionsMockRecorder) PeerDiagnostics 

func (mr *MockTransactionsMockRecorder) PeerDiagnostics() *gomock.Call

PeerDiagnostics indicates an expected call of PeerDiagnostics.

func (*MockTransactionsMockRecorder) Reprocess 

func (mr *MockTransactionsMockRecorder) Reprocess(ctx, contentType interface{}) *gomock.Call

Reprocess indicates an expected call of Reprocess.

func (*MockTransactionsMockRecorder) Subscribe 

func (mr *MockTransactionsMockRecorder) Subscribe(name, receiver interface{}, filters ...interface{}) *gomock.Call

Subscribe indicates an expected call of Subscribe.

func (*MockTransactionsMockRecorder) Subscribers 

func (mr *MockTransactionsMockRecorder) Subscribers() *gomock.Call

Subscribers indicates an expected call of Subscribers.

func (*MockTransactionsMockRecorder) WithPersistency 

func (mr *MockTransactionsMockRecorder) WithPersistency() *gomock.Call

WithPersistency indicates an expected call of WithPersistency.

type Network 

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

Network implements Transactions interface and Engine functions.

func NewNetworkInstance 

func NewNetworkInstance(
	config Config,
	store didstore.Store,
	keyStore crypto.KeyStore,
	eventPublisher events.Event,
	storeProvider storage.Provider,
	pkiValidator pki.Validator,
) *Network

NewNetworkInstance creates a new Network engine instance.

func NewTestNetworkInstance 

func NewTestNetworkInstance(t *testing.T) *Network

NewTestNetworkInstance creates a new Transactions instance that writes it data to a test directory.

func (*Network) AddressBook 

func (n *Network) AddressBook() []transport.Contact

func (*Network) CheckHealth 

func (n *Network) CheckHealth() map[string]core.Health

CheckHealth performs health checks for the network engine.

func (*Network) CleanupSubscriberEvents 

func (n *Network) CleanupSubscriberEvents(subscriberName, errorPrefix string) error

func (*Network) Config 

func (n *Network) Config() interface{}

Config returns a pointer to the actual config of the module.

func (*Network) Configure 

func (n *Network) Configure(config core.ServerConfig) error

Configure configures the Network subsystem

func (*Network) CreateTransaction 

func (n *Network) CreateTransaction(ctx context.Context, template Template) (dag.Transaction, error)

CreateTransaction creates a new transaction from the given template.

func (*Network) Diagnostics 

func (n *Network) Diagnostics() []core.DiagnosticResult

Diagnostics collects and returns diagnostics for the Network engine.

func (*Network) DiscoverServices 

func (n *Network) DiscoverServices(updatedDID did.DID)

func (*Network) GetTransaction 

func (n *Network) GetTransaction(transactionRef hash.SHA256Hash) (dag.Transaction, error)

GetTransaction retrieves the transaction for the given reference. If the transaction is not known, an error is returned.

func (*Network) GetTransactionPayload 

func (n *Network) GetTransactionPayload(transactionRef hash.SHA256Hash) ([]byte, error)

GetTransactionPayload retrieves the transaction Payload for the given transaction. If the transaction or Payload is not found nil is returned.

func (*Network) ListTransactionsInRange 

func (n *Network) ListTransactionsInRange(startInclusive uint32, endExclusive uint32) ([]dag.Transaction, error)

ListTransactionsInRange returns all transactions known to this Network instance with lamport clock value between startInclusive and endExclusive.

func (*Network) Migrate 

func (n *Network) Migrate() error

func (*Network) Name 

func (n *Network) Name() string

Name returns the module name.

func (*Network) PeerDiagnostics 

func (n *Network) PeerDiagnostics() map[transport.PeerID]transport.Diagnostics

PeerDiagnostics returns a map containing diagnostic information of the node's peers. The key contains the remote peer's ID.

func (*Network) Reprocess 

func (n *Network) Reprocess(ctx context.Context, contentType string) (*ReprocessReport, error)

func (*Network) Shutdown 

func (n *Network) Shutdown() error

Shutdown cleans up any leftover go routines

func (*Network) Start 

func (n *Network) Start() error

Start initiates the Network subsystem

func (*Network) Subscribe 

func (n *Network) Subscribe(name string, subscriber dag.ReceiverFn, options ...SubscriberOption) error

Subscribe registers a receiverFn with specific options. The receiver is called when a transaction is added to the DAG. It's only called if the given dag.NotificationFilter's match.

func (*Network) Subscribers 

func (n *Network) Subscribers() []dag.Notifier

func (*Network) WithPersistency 

func (n *Network) WithPersistency() SubscriberOption

WithPersistency creates the SubscriberOption that creates the NotifierOption for persistency with the correct DAG KVStore

type Receiver 

type Receiver func(transaction dag.Transaction, payload []byte) error

Receiver defines a callback function for processing transactions/payloads received by the DAG.

type ReprocessReport 

type ReprocessReport struct {
}

ReprocessReport describes the reprocess exection.

type SubscriberOption 

type SubscriberOption func() dag.NotifierOption

SubscriberOption creates a dag.NotifierOption

func WithSelectionFilter 

func WithSelectionFilter(filter dag.NotificationFilter) SubscriberOption

WithSelectionFilter creates a SubscriberOption that creates a dag.NotifierOption with the given filter

type Template 

type Template struct {
	Key             crypto.Key
	Payload         []byte
	Type            string
	AttachKey       bool
	Timestamp       time.Time
	AdditionalPrevs []hash.SHA256Hash
	Participants    dag.PAL
}

Template is used to build a spec for new transactions.

func TransactionTemplate 

func TransactionTemplate(payloadType string, payload []byte, key crypto.Key) Template

TransactionTemplate creates a new Template with the given required properties.

func (Template) WithAdditionalPrevs 

func (t Template) WithAdditionalPrevs(additionalPrevs []hash.SHA256Hash) Template

WithAdditionalPrevs specifies additional `prev` hashes, which are added to the set of prevs of the new transaction (current HEADs of the DAG). This is used to update entities that are mutable. By referring to the previous transaction of an entity, conflicts through parallel updates can be detected.

func (Template) WithAttachKey 

func (t Template) WithAttachKey() Template

WithAttachKey specifies that the signing key must be attached to the transaction, because it wasn't published before.

func (Template) WithPrivate 

func (t Template) WithPrivate(participants []did.DID) Template

WithPrivate specifies that the transaction is private, and should only be readable by the given Participants.

func (Template) WithTimestamp 

func (t Template) WithTimestamp(timestamp time.Time) Template

WithTimestamp specifies a custom signing time for the transaction. Otherwise, time.Now() is used.

type Transactions 

type Transactions interface {
	// Subscribe registers a receiver for the specified transaction type.
	// A filter can be passed as option with the WithSelectionFilter function.
	// The events for the receiver can be made persistent by passing the network.WithPersistency() option.
	Subscribe(name string, receiver dag.ReceiverFn, filters ...SubscriberOption) error
	// Subscribers returns the list of notifiers on the DAG that emit events to subscribers.
	Subscribers() []dag.Notifier
	// CleanupSubscriberEvents removes events. Example use is cleaning up events that errored but should be removed due to a bugfix.
	CleanupSubscriberEvents(subcriberName, errorPrefix string) error
	// GetTransactionPayload retrieves the transaction Payload for the given transaction.
	// If the transaction or Payload is not found, dag.ErrPayloadNotFound is returned.
	GetTransactionPayload(transactionRef hash.SHA256Hash) ([]byte, error)
	// GetTransaction retrieves the transaction for the given reference.
	// If the transaction is not found, a dag.ErrTransactionNotFound is returned.
	GetTransaction(transactionRef hash.SHA256Hash) (dag.Transaction, error)
	// CreateTransaction creates a new transaction according to the given spec.
	CreateTransaction(ctx context.Context, spec Template) (dag.Transaction, error)
	// ListTransactionsInRange returns all transactions known to this Network instance with lamport clock value between startInclusive and endExclusive.
	// endExclusive must be larger than startInclusive.
	ListTransactionsInRange(startInclusive uint32, endExclusive uint32) ([]dag.Transaction, error)
	// PeerDiagnostics returns a map containing diagnostic information of the node's peers. The key contains the remote peer's ID.
	PeerDiagnostics() map[transport.PeerID]transport.Diagnostics
	// Reprocess walks the DAG and publishes all transactions matching the contentType via Nats
	Reprocess(ctx context.Context, contentType string) (*ReprocessReport, error)
	// WithPersistency returns a SubscriberOption for persistency. It allows the DAG KVStore to be used as persistent store for notifications.
	// The notifications will then have ACID properties
	WithPersistency() SubscriberOption
	// DiscoverServices should be called by the VDR to let the network know it has processed and verified a document (update) for the DID.
	DiscoverServices(updatedDID did.DID)
	// AddressBook returns the list of contacts in the address book.
	AddressBook() []transport.Contact
}

Transactions is the interface that defines the API for creating, reading and subscribing to Nuts Network transactions.

Source Files

View all Source files

Directories

Path Synopsis
api
v1
Package v1 provides primitives to interact with the openapi HTTP API.
 Package v1 provides primitives to interact with the openapi HTTP API.
dag
Package dag is a generated GoMock package.
 Package dag is a generated GoMock package.
tree
Package transport is a generated GoMock package.
 Package transport is a generated GoMock package.
grpc
Package grpc is a generated GoMock package.
 Package grpc is a generated GoMock package.
v2
Package v2 is a generated GoMock package.
 Package v2 is a generated GoMock package.
v2/gossip
Package gossip is a generated GoMock package.
 Package gossip is a generated GoMock package.

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