nats

package
v0.98.10 Latest Latest
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 Go to latest Published: Jul 29, 2026 License: MIT Imports: 8 Imported by: 0

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Types

type PubSub 

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

PubSub implements msgqueue.PubSub over core NATS. Subjects are subjectPrefix + "." + topic.Name() (default prefix "hatchet.pubsub"), delivery is best-effort at-most-once.

func NewPubSub 

func NewPubSub(fs ...PubSubOpt) (func() error, *PubSub, error)

NewPubSub connects synchronously to NATS and returns a PubSub. Fails if the server is unreachable or if its max_payload is below msgqueue.MaxMessageSize.

func (*PubSub) IsReady 

func (p *PubSub) IsReady() bool

func (*PubSub) Pub 

func (p *PubSub) Pub(ctx context.Context, topic msgqueue.Topic, msg *msgqueue.Message) error

Pub publishes a message to the topic. Oversized multi-payload messages are chunked like rabbitmq/pubsub.go.

func (*PubSub) Sub 

func (p *PubSub) Sub(topic msgqueue.Topic, handler msgqueue.MsgHandler) (func() error, error)

Sub subscribes to a topic with plain Subscribe (fan-out to every subscriber). Delivery is at-most-once: handler errors are logged, never redelivered.

type PubSubOpt 

type PubSubOpt func(*PubSubOpts)

func WithPubSubLogger 

func WithPubSubLogger(l *zerolog.Logger) PubSubOpt

func WithPubSubPassword 

func WithPubSubPassword(password string) PubSubOpt

WithPubSubPassword sets the NATS password for nats.UserInfo.

func WithPubSubSubjectPrefix 

func WithPubSubSubjectPrefix(prefix string) PubSubOpt

WithPubSubSubjectPrefix sets the NATS subject prefix (default "hatchet.pubsub"). Empty falls back to the default. No trimming or validation: a bad prefix fails loudly via nats ErrBadSubject at startup.

func WithPubSubURL 

func WithPubSubURL(url string) PubSubOpt

WithPubSubURL sets the NATS seed URL(s). Comma-separated lists are passed through to nats.go. Prefer bare hosts and set Username/Password so rediscovered cluster peers authenticate.

func WithPubSubUsername 

func WithPubSubUsername(username string) PubSubOpt

WithPubSubUsername sets the NATS username for nats.UserInfo.

type PubSubOpts 

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

Source Files

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