use async_lapin::*;
use lapin::{
executor::Executor, message::DeliveryResult, options::*, publisher_confirm::Confirmation,
types::FieldTable, BasicProperties, Connection, ConnectionProperties, Result,
};
use log::info;
use std::{future::Future, pin::Pin};
#[derive(Debug)]
struct MyExecutor;
impl Executor for MyExecutor {
fn spawn(&self, f: Pin<Box<dyn Future<Output = ()> + Send>>) -> Result<()> {
async_global_executor::spawn(f).detach();
Ok(())
}
}
fn main() -> Result<()> {
if std::env::var("RUST_LOG").is_err() {
std::env::set_var("RUST_LOG", "info");
}
env_logger::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().with_async_io(MyExecutor),
)
.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!("Declared queue {:?}", queue);
let consumer = channel_b
.basic_consume(
"hello",
"my_consumer",
BasicConsumeOptions::default(),
FieldTable::default(),
)
.await?;
consumer
.set_delegate(move |delivery: DeliveryResult| async move {
let delivery = delivery.expect("error caught in in consumer");
if let Some((_, delivery)) = delivery {
delivery
.ack(BasicAckOptions::default())
.await
.expect("failed to ack");
}
})
.expect("set_delegate");
let payload = b"Hello world!";
loop {
let confirm = channel_a
.basic_publish(
"",
"hello",
BasicPublishOptions::default(),
payload.to_vec(),
BasicProperties::default(),
)
.await?
.await?;
assert_eq!(confirm, Confirmation::NotRequested);
}
})
}