[−][src]Crate lapin_async
lapin-async
this library is meant for use in an event loop. The library exposes, through the Connection struct, a state machine you can drive through IO you manage.
Typically, your code would own the socket and buffers, and regularly pass the input and output buffers to the state machine so it receives messages and serializes new ones to send. You can then query the current state and see if it received new messages for the consumers.
Example
use env_logger; use lapin_async as lapin; use log::info; use crate::lapin::{ BasicProperties, Channel, Connection, ConnectionProperties, ConsumerSubscriber, message::Delivery, options::*, types::FieldTable, }; #[derive(Clone,Debug)] struct Subscriber { channel: Channel, } impl ConsumerSubscriber for Subscriber { fn new_delivery(&self, delivery: Delivery) { self.channel.basic_ack(delivery.delivery_tag, BasicAckOptions::default()).into_result().expect("basic_ack"); } fn drop_prefetched_messages(&self) {} fn cancel(&self) {} } fn main() { env_logger::init(); let addr = std::env::var("AMQP_ADDR").unwrap_or_else(|_| "amqp://127.0.0.1:5672/%2f".into()); let conn = Connection::connect(&addr, ConnectionProperties::default()).wait().expect("connection error"); info!("CONNECTED"); let channel_a = conn.create_channel().wait().expect("create_channel"); let channel_b = conn.create_channel().wait().expect("create_channel"); channel_a.queue_declare("hello", QueueDeclareOptions::default(), FieldTable::default()).wait().expect("queue_declare"); let queue = channel_b.queue_declare("hello", QueueDeclareOptions::default(), FieldTable::default()).wait().expect("queue_declare"); info!("will consume"); channel_b.basic_consume(&queue, "my_consumer", BasicConsumeOptions::default(), FieldTable::default(), Box::new(Subscriber { channel: channel_b.clone() })).wait().expect("basic_consume"); let payload = b"Hello world!"; loop { channel_a.basic_publish("", "hello", BasicPublishOptions::default(), payload.to_vec(), BasicProperties::default()).wait().expect("basic_publish"); } }
Re-exports
pub use amq_protocol::tcp; |
pub use amq_protocol::types; |
pub use amq_protocol::uri; |
Modules
auth | Utility to handle SASL authentication with AMQP server |
confirmation | |
message | |
options | |
protocol | The AMQ Protocol implementation (Generated) |
Structs
Channel | |
ChannelStatus | |
Configuration | |
Connection | |
ConnectionProperties | |
ConnectionStatus | |
Error | The type of error that can be returned in this crate. |
Queue |
Enums
ChannelState | |
ConnectionState | |
ErrorKind | The different kinds of errors that can be reported. |
Traits
Connect | Trait providing a method to connect to an AMQP server |
ConsumerSubscriber |
Type Definitions
BasicProperties | Type alias for AMQP BasicProperties |