shove 0.11.3

Async tasks via pubsub on steroids. Comes with built-in support for complex queue configurations, audit logs, autoscaling consumer groups and more.
Documentation 
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//! Backend marker types. One zero-sized struct per backend, each under
//! the existing Cargo feature.

#[cfg(feature = "kafka")]
#[cfg_attr(docsrs, doc(cfg(feature = "kafka")))]
pub struct Kafka;

#[cfg(feature = "nats")]
#[cfg_attr(docsrs, doc(cfg(feature = "nats")))]
pub struct Nats;

#[cfg(feature = "rabbitmq")]
#[cfg_attr(docsrs, doc(cfg(feature = "rabbitmq")))]
pub struct RabbitMq;

/// AWS SQS backend marker.
///
/// SQS has no broker-level coordinated-group primitive — N consumers
/// polling one queue is independent polling, covered by
/// `Broker<Sqs>::consumer_supervisor()`. The `compile_fail` doctest below
/// pins that property: if someone ever adds
/// `impl HasCoordinatedGroups for Sqs`, this doctest starts compiling and
/// fails the build.
///
/// ```compile_fail
/// # #[cfg(feature = "aws-sns-sqs")]
/// # async fn _x() -> shove::error::Result<()> {
/// use shove::{Broker, Sqs};
/// use shove::sns::SnsConfig;
///
/// let broker = Broker::<Sqs>::new(SnsConfig {
///     region: None,
///     endpoint_url: None,
/// }).await?;
/// // error: no method named `consumer_group` for `Broker<Sqs>`
/// let _ = broker.consumer_group();
/// # Ok(())
/// # }
/// ```
#[cfg(feature = "aws-sns-sqs")]
#[cfg_attr(docsrs, doc(cfg(feature = "aws-sns-sqs")))]
pub struct Sqs;

#[cfg(feature = "inmemory")]
#[cfg_attr(docsrs, doc(cfg(feature = "inmemory")))]
pub struct InMemory;

#[cfg(feature = "redis-streams")]
#[cfg_attr(docsrs, doc(cfg(feature = "redis-streams")))]
pub struct Redis;