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#![warn(rust_2018_idioms)] //! lapin-futures //! //! This library offers a futures based API over the lapin-async library. //! It leverages the tokio-io and futures library, so you can use it //! with tokio, futures-cpupool or any other reactor. //! //! The library is designed so it does not own the socket, so you //! can use any TCP, TLS or unix socket based stream. //! //! Calls to the underlying stream are guarded by a mutex, so you could //! use one connection from multiple threads. //! //! There's an [example available](https://github.com/sozu-proxy/lapin/blob/master/futures/examples/client.rs) //! using tokio. //! //! ## Publishing a message //! //! ```rust,no_run //! use env_logger; //! use failure::Error; //! use futures::future::Future; //! use lapin_futures as lapin; //! use crate::lapin::channel::{BasicPublishOptions, BasicProperties, QueueDeclareOptions}; //! use crate::lapin::client::ConnectionOptions; //! use crate::lapin::types::FieldTable; //! use log::info; //! use tokio; //! use tokio::net::TcpStream; //! use tokio::runtime::Runtime; //! //! fn main() { //! env_logger::init(); //! //! let addr = "127.0.0.1:5672".parse().unwrap(); //! //! Runtime::new().unwrap().block_on_all( //! TcpStream::connect(&addr).map_err(Error::from).and_then(|stream| { //! //! // connect() returns a future of an AMQP Client //! // that resolves once the handshake is done //! lapin::client::Client::connect(stream, ConnectionOptions::default()).map_err(Error::from) //! }).and_then(|(client, _ /* heartbeat */)| { //! //! // create_channel returns a future that is resolved //! // once the channel is successfully created //! client.create_channel().map_err(Error::from) //! }).and_then(|channel| { //! let id = channel.id; //! info!("created channel with id: {}", id); //! //! // we using a "move" closure to reuse the channel //! // once the queue is declared. We could also clone //! // the channel //! channel.queue_declare("hello", QueueDeclareOptions::default(), FieldTable::new()).and_then(move |_| { //! info!("channel {} declared queue {}", id, "hello"); //! //! channel.basic_publish("", "hello", b"hello from tokio".to_vec(), BasicPublishOptions::default(), BasicProperties::default()) //! }).map_err(Error::from) //! }) //! ).expect("runtime failure"); //! } //! ``` //! //! ## Creating a consumer //! //! ```rust,no_run //! use env_logger; //! use failure::Error; //! use futures::{future::Future, Stream}; //! use lapin_futures as lapin; //! use crate::lapin::client::ConnectionOptions; //! use crate::lapin::channel::{BasicConsumeOptions, QueueDeclareOptions}; //! use crate::lapin::types::FieldTable; //! use log::{debug, info}; //! use tokio; //! use tokio::net::TcpStream; //! use tokio::runtime::Runtime; //! //! fn main() { //! env_logger::init(); //! //! let addr = "127.0.0.1:5672".parse().unwrap(); //! //! Runtime::new().unwrap().block_on_all( //! TcpStream::connect(&addr).map_err(Error::from).and_then(|stream| { //! //! // connect() returns a future of an AMQP Client //! // that resolves once the handshake is done //! lapin::client::Client::connect(stream, ConnectionOptions::default()).map_err(Error::from) //! }).and_then(|(client, heartbeat)| { //! // The heartbeat future should be run in a dedicated thread so that nothing can prevent it from //! // dispatching events on time. //! // If we ran it as part of the "main" chain of futures, we might end up not sending //! // some heartbeats if we don't poll often enough (because of some blocking task or such). //! tokio::spawn(heartbeat.map_err(|_| ())); //! //! // create_channel returns a future that is resolved //! // once the channel is successfully created //! client.create_channel().map_err(Error::from) //! }).and_then(|channel| { //! let id = channel.id; //! info!("created channel with id: {}", id); //! //! let ch = channel.clone(); //! channel.queue_declare("hello", QueueDeclareOptions::default(), FieldTable::new()).and_then(move |queue| { //! info!("channel {} declared queue {}", id, "hello"); //! //! // basic_consume returns a future of a message //! // stream. Any time a message arrives for this consumer, //! // the for_each method would be called //! channel.basic_consume(&queue, "my_consumer", BasicConsumeOptions::default(), FieldTable::new()) //! }).and_then(|stream| { //! info!("got consumer stream"); //! //! stream.for_each(move |message| { //! debug!("got message: {:?}", message); //! info!("decoded message: {:?}", std::str::from_utf8(&message.data).unwrap()); //! ch.basic_ack(message.delivery_tag, false) //! }) //! }).map_err(Error::from) //! }) //! ).expect("runtime failure"); //! } //! ``` pub mod channel; pub mod client; pub mod consumer; pub mod error; pub mod message; pub mod queue; pub mod transport; pub mod types; pub mod uri;