Struct NatsConfig 

pub struct NatsConfig {
    pub url: String,
    pub stream_prefix: String,
    pub max_deliver: Option<i64>,
    pub ack_wait: Duration,
    pub session_lock_duration: Duration,
    pub enable_dead_letter: bool,
    pub dead_letter_subject_prefix: Option<String>,
    pub credentials_path: Option<String>,
}

NATS provider configuration using JetStream

Examples

use queue_runtime::NatsConfig;
use chrono::Duration;

let config = NatsConfig {
    url: "nats://localhost:4222".to_string(),
    stream_prefix: "queue-runtime".to_string(),
    max_deliver: Some(3),
    ack_wait: Duration::seconds(30),
    session_lock_duration: Duration::minutes(5),
    enable_dead_letter: true,
    dead_letter_subject_prefix: Some("dlq".to_string()),
    credentials_path: None,
};

Fields

url: String

NATS server URL (e.g. nats://localhost:4222 or nats://user:pass@host:port)

stream_prefix: String

Prefix for JetStream stream names (stream name = {prefix}-{queue_name})

max_deliver: Option<i64>

Maximum number of delivery attempts before giving up (None = unlimited)

ack_wait: Duration

Duration to wait for ack before re-delivering (visibility timeout analog)

session_lock_duration: Duration

Duration to hold a session lock before expiry

enable_dead_letter: bool

Whether to enable dead letter queue routing via a separate stream

dead_letter_subject_prefix: Option<String>

Subject prefix for dead letter messages ({prefix}.{queue})

credentials_path: Option<String>

Path to NATS credentials file (.creds format)

Trait Implementations

impl Clone for NatsConfig

fn clone(&self) -> NatsConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NatsConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for NatsConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for NatsConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for NatsConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.