streaming

Documentation

Index

• Constants
• Variables
• func New(clusterID string, clientID string, nc nc.SimpleNatsClientI, options ...Option) (*client, error)
• func NewDefaultClient() *client
• func NewOnlyStreaming(clusterID string, clientID string, dsn []URL, options ...Option) (*client, error)
• type AckHandler
• type AdvanceNatsClient
• type AfterReconnectFunc
• type GUID
• type Handler
• type Msg
• type MsgHandler
• type Option
• type PureNatsStunConnI
• type QueueGroup
• type Serializable
• type Subj
• type Subscription
• type SubscriptionOption
• type URL

Constants

const EmptyGUID = ""

EmptyGUID "".

Variables

var (
	DefaultClusterID  = "test-cluster"
	EmptyHandler      = func(*Msg, Serializable) {}
	DurableNameOption = stan.DurableName
)

nolint golint

var (
	// ErrNilNatsConn pure nats is nil, check usage library.
	ErrNilNatsConn = errors.New("pure nats connection from advance nats client is nil, nc.NatsConn() == nil ")

	// ErrNilNatsClient pure nats client is nil, check usage library.
	ErrNilNatsClient = errors.New("advance nats client is nil")
)

Functions

func New

func New(clusterID string, clientID string, nc nc.SimpleNatsClientI, options ...Option) (*client, error)

New - Create Nats Streaming client with instance of Advance Nats client. nolint golint

func NewDefaultClient

func NewDefaultClient() *client

NewDefaultClient - NewDefaultClient. nolint

func NewOnlyStreaming

func NewOnlyStreaming(clusterID string, clientID string, dsn []URL, options ...Option) (*client, error)

NewOnlyStreaming - create only streaming client. nolint golint

Types

type AckHandler

type AckHandler = stan.AckHandler // func(string, error)

nolint golint

type AdvanceNatsClient

type AdvanceNatsClient interface {
	// NATS @see -> nc.SimpleNatsClientI
	Ping(context.Context, nc.Subj) (bool, error)
	PongHandler(nc.Subj) (*nc.Subscription, error)
	PongQueueHandler(nc.Subj, nc.QueueGroup) (*nc.Subscription, error)
	Request(context.Context, Subj, Serializable, Serializable) error
	ReplyHandler(Subj, Serializable, nc.Handler) (*nc.Subscription, error)
	ReplyQueueHandler(Subj, QueueGroup, Serializable, nc.Handler) (*nc.Subscription, error)

	// NATS Streaming
	PublishSync(Subj, Serializable) error
	PublishAsync(Subj, Serializable, AckHandler) (GUID, error)
	DefaultAckHandler() AckHandler
	Subscribe(Subj, Serializable, Handler, ...SubscriptionOption) (Subscription, error)
	QueueSubscribe(Subj, QueueGroup, Serializable, Handler, ...SubscriptionOption) (Subscription, error)
	Reconnect(bool) error
	RegisterAfterReconnectCallbackChan(chan interface{})
	DeregisterAfterReconnectCallbackChan()

	// General for both NATS and NATS Streaming
	UseCustomLogger(logger.Logger)
	NatsConn() *nats.Conn
	Nats() nc.SimpleNatsClientI
	Close() error
}

AdvanceNatsClient - advance nats / nats streaming client.

type AfterReconnectFunc

type AfterReconnectFunc = func(anc AdvanceNatsClient)

nolint golint

type GUID

type GUID = string // id send msg from Nats Streaming

nolint golint

type Handler

type Handler = func(*stan.Msg, Serializable)

nolint golint

type Msg

type Msg = stan.Msg

nolint golint

type MsgHandler

type MsgHandler = stan.MsgHandler // func(msg *Msg)

nolint golint

type Option

type Option = stan.Option

Option - option.

type PureNatsStunConnI

type PureNatsStunConnI interface {
	Publish(subj string, data []byte) error
	PublishAsync(subj string, data []byte, ackHandler AckHandler) (string, error)
	Subscribe(subj string, msgHandler MsgHandler, subscriptionOptions ...SubscriptionOption) (Subscription, error)
	QueueSubscribe(subj string, queueGroup string, msgHandler MsgHandler, subscriptionOptions ...SubscriptionOption) (Subscription, error)
	Close() error
}

StunConnI represents a connection to the NATS Streaming subsystem. It can Publish and Subscribe to messages within the NATS Streaming cluster. The connection is safe to use in multiple Go routines concurrently.

type QueueGroup

type QueueGroup = nc.QueueGroup

nolint golint

type Serializable

type Serializable = serializable.Serializable

nolint golint

type Subj

type Subj = nc.Subj

nolint golint

type Subscription

type Subscription = stan.Subscription

nolint golint

type SubscriptionOption

type SubscriptionOption = stan.SubscriptionOption

nolint golint

type URL

type URL = string

URL - url.