events

package
Version: v1.6.6 Latest Latest
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Published: Jun 6, 2022 License: Apache-2.0 Imports: 4 Imported by: 1,630

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Types

type Envelope

type Envelope struct {
	Timestamp time.Time
	Namespace string
	Topic     string
	Event     *types.Any
}

Envelope provides the packaging for an event.

func (*Envelope) Field

func (e *Envelope) Field(fieldpath []string) (string, bool)

Field returns the value for the given fieldpath as a string, if defined. If the value is not defined, the second value will be false.

type Event

type Event interface{}

Event is a generic interface for any type of event

type Forwarder

type Forwarder interface {
	Forward(ctx context.Context, envelope *Envelope) error
}

Forwarder forwards an event to the underlying event bus

type Publisher

type Publisher interface {
	Publish(ctx context.Context, topic string, event Event) error
}

Publisher posts the event.

type Subscriber

type Subscriber interface {
	Subscribe(ctx context.Context, filters ...string) (ch <-chan *Envelope, errs <-chan error)
}

Subscriber allows callers to subscribe to events

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