use anyhow::Result;
use danube_client::{DanubeClient, SubType};
#[tokio::main]
async fn main() -> Result<()> {
let client = DanubeClient::builder()
.service_url("http://127.0.0.1:6650")
.build()
.await?;
let topic = "/default/reliable_topic";
let consumer_name = "cons_reliable";
let subscription_name = "subs_reliable";
let mut consumer = client
.new_consumer()
.with_topic(topic)
.with_consumer_name(consumer_name)
.with_subscription(subscription_name)
.with_subscription_type(SubType::Exclusive)
.build();
consumer.subscribe().await?;
println!("The Consumer {} was created", consumer_name);
let mut message_stream = consumer.receive().await?;
let mut total_received_size = 0;
while let Some(message) = message_stream.recv().await {
let payload = message.payload.clone();
total_received_size += payload.len();
match String::from_utf8(payload) {
Ok(message_str) => {
println!(
"Received message: {} | offset: {} | total received bytes: {}",
message_str, &message.msg_id.topic_offset, total_received_size
);
consumer.ack(&message).await?;
}
Err(e) => println!("Failed to convert Payload to String: {}", e),
}
}
Ok(())
}