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use futures::StreamExt;
use iridium_stomp::{AckMode, Connection, SubscriptionOptions};
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
// This example expects a STOMP broker on localhost:61613 (e.g. RabbitMQ with stomp plugin).
// Start a local broker before running: `docker compose up -d`
// Connect with a heartbeat request (client_out=10000ms, client_in=10000ms)
let conn = Connection::connect(
"127.0.0.1:61613",
"guest",
"guest",
Connection::DEFAULT_HEARTBEAT,
)
.await?;
// Subscribe to a queue using client ack mode (so we must ack messages).
// Here we use `SubscriptionOptions` to optionally specify a durable
// queue name (for brokers like RabbitMQ) or include broker-specific
// headers (for example ActiveMQ's durable subscription headers).
let opts = SubscriptionOptions {
durable_queue: Some("/queue/example-durable".to_string()),
headers: vec![],
};
let mut sub = conn
.subscribe_with_options("/exchange/topic", AckMode::Client, opts)
.await?;
println!("subscribed id={} dest={}", sub.id(), sub.destination());
// Use the Subscription as a Stream directly (we implemented Stream for Subscription)
while let Some(frame) = sub.next().await {
println!("received frame:\n{}", frame);
// read message-id header for ACK
let msg_id = frame
.headers
.iter()
.find(|(k, _)| k.eq_ignore_ascii_case("message-id"))
.map(|(_, v)| v.to_string());
if let Some(id) = msg_id {
// Acknowledge the message via the subscription convenience method
sub.ack(&id).await?;
println!("acked message-id={}", id);
}
}
// Explicitly unsubscribe when done (consumes the subscription)
sub.unsubscribe().await?;
// close the connection
conn.close().await;
Ok(())
}