use futures_executor::{LocalPool, ThreadPool};
use futures_util::stream::StreamExt;
use lapin::{
options::*, publisher_confirm::Confirmation, types::FieldTable, BasicProperties, Connection,
ConnectionProperties, Result,
};
use log::info;
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());
let executor = ThreadPool::new()?;
LocalPool::new().run_until(async {
let conn = Connection::connect(
&addr,
ConnectionProperties::default().with_default_executor(8),
)
.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 mut consumer = channel_b
.basic_consume(
"hello",
"my_consumer",
BasicConsumeOptions::default(),
FieldTable::default(),
)
.await?;
executor.spawn_ok(async move {
info!("will consume");
while let Some(delivery) = consumer.next().await {
let (channel, delivery) = delivery.expect("error in consumer");
channel
.basic_ack(delivery.delivery_tag, BasicAckOptions::default())
.await
.expect("ack");
}
});
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);
}
})
}