[](https://docs.rs/lapin) [](https://github.com/amqp-rs/lapin/actions) [](https://crates.io/crates/lapin) [](https://coveralls.io/github/amqp-rs/lapin?branch=main) [](https://deps.rs/repo/github/amqp-rs/lapin) [](LICENSE) A Rust AMQP client library.

This project follows the AMQP 0.9.1 specifications, targeting especially RabbitMQ.

Feature switches

• codegen: generate code instead of using pregenerated one
• native-tls: enable amqps support through native-tls
• openssl: enable amqps support through openssl (preferred over native-tls when set)
• rustls (default): enable amqps support through rustls (preferred over openssl when set, uses rustls-native-certs by default)
• rustls-native-certs: same as rustls, be ensure we'll still use rustls-native-certs even if the default for rustls changes
• rustls-webpki-roots-certs: same as rustls but using webkit-roots instead of rustls-native-certs

Integration with third-party runtimes

Lapin can use any runtime of your choice by passing it to the ConnectionProperties.

You can configure the executor to use through executor-trait.

You can configure the reactor to use through reactor-trait.

There are implementations for tokio, async-std and others.

Example

```rust use futureslite::stream::StreamExt; use lapin::{ options::*, publisherconfirm::Confirmation, types::FieldTable, BasicProperties, Connection, ConnectionProperties, Result, }; use tracing::info;

fn main() -> Result<()> { if std::env::var("RUSTLOG").iserr() { std::env::setvar("RUSTLOG", "info"); }

tracing_subscriber::fmt::init();

let addr = std::env::var("AMQP_ADDR").unwrap_or_else(|_| "amqp://127.0.0.1:5672/%2f".into());

async_global_executor::block_on(async {
    let conn = Connection::connect(
        &addr,
        ConnectionProperties::default(),
    )
    .await?;

    info!("CONNECTED");

    let channel_a = conn.create_channel().await?;
    let channel_b = conn.create_channel().await?;

    let queue = channel_a
        .queue_declare(
            "hello",
            QueueDeclareOptions::default(),
            FieldTable::default(),
        )
        .await?;

    info!(?queue, "Declared queue");

    let mut consumer = channel_b
        .basic_consume(
            "hello",
            "my_consumer",
            BasicConsumeOptions::default(),
            FieldTable::default(),
        )
        .await?;
    async_global_executor::spawn(async move {
        info!("will consume");
        while let Some(delivery) = consumer.next().await {
            let delivery = delivery.expect("error in consumer");
            delivery
                .ack(BasicAckOptions::default())
                .await
                .expect("ack");
        }
    }).detach();

    let payload = b"Hello world!";

    loop {
        let confirm = channel_a
            .basic_publish(
                "",
                "hello",
                BasicPublishOptions::default(),
                payload,
                BasicProperties::default(),
            )
            .await?
            .await?;
        assert_eq!(confirm, Confirmation::NotRequested);
    }
})

} ```