Created
December 30, 2021 17:41
-
-
Save sabine/83c8e8360bd71cfe263d37b67f529db5 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
fn main() { | |
let nc = match nats::connect("127.0.0.1:4222") { | |
Ok(nc) => nc, | |
Err(err) => panic!("Error: {}", err), | |
}; | |
nc.delete_stream("file_processing"); | |
let stream = nats::jetstream::StreamConfig { | |
name: "file_processing".to_string(), | |
subjects: Some(vec!["resize_image".to_string()]), | |
retention: nats::jetstream::RetentionPolicy::Limits, | |
max_consumers: -1, | |
storage: nats::jetstream::StorageType::File, | |
..nats::jetstream::StreamConfig::default() | |
}; | |
let resp = match nc.create_stream(stream) { | |
Ok(resp) => resp, | |
Err(err) => panic!("Error: {}", err), | |
}; | |
println!("Response: {:?}", resp); | |
for n in 1..5 { | |
let payload = format!("resize_image:{}", n); | |
match nc.publish("resize_image", &payload) { | |
Ok(_) => { | |
println!("Published: {}", payload) | |
} | |
Err(err) => panic!("Error: {}", err), | |
}; | |
} | |
let consumer = nats::jetstream::ConsumerConfig { | |
deliver_subject: None, | |
durable_name: Some("file_processing".to_string()), | |
deliver_policy: nats::jetstream::DeliverPolicy::All, | |
..nats::jetstream::ConsumerConfig::default() | |
}; | |
let mut consumer = nc.create_consumer("file_processing", consumer).unwrap(); | |
println!("created consumer"); | |
loop { | |
let msg = consumer.process_timeout(|msg| { | |
println!("got message {:?}", msg); | |
msg.double_ack(nats::jetstream::AckKind::Ack); | |
Ok(msg.data.to_vec()) | |
}); | |
println!("msg: {:?}", msg); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment