Crate deadpool_lapin[−][src]

Expand description

Deadpool for Lapin

Deadpool is a dead simple async pool for connections and objects of any type.

This crate implements a deadpool manager for lapin.

Features

Feature	Description	Extra dependencies	Default
`rt_tokio_1`	Enable support for tokio crate	`deadpool/rt_tokio_1`	yes
`rt_async-std_1`	Enable support for async-std crate	`deadpool/rt_async-std_1`	no
`serde`	Enable support for serde crate	`deadpool/serde`, `serde/derive`	no

Example with `tokio-amqp` crate

use std::sync::Arc;

use deadpool_lapin::{Config, Manager, Pool, Runtime};
use deadpool_lapin::lapin::{
    options::BasicPublishOptions,
    BasicProperties,
};
use tokio_amqp::LapinTokioExt as _;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut cfg = Config::default();
    cfg.url = Some("amqp://127.0.0.1:5672/%2f".into());
    let pool = cfg.create_pool(Some(Runtime::Tokio1))?;
    for _ in 1..10 {
        let mut connection = pool.get().await?;
        let channel = connection.create_channel().await?;
        channel.basic_publish(
            "",
            "hello",
            BasicPublishOptions::default(),
            b"hello from deadpool".to_vec(),
            BasicProperties::default(),
        ).await?;
    }
    Ok(())
}

Example with `config`, `dotenv` and `tokio-amqp` crate

use std::sync::Arc;

use deadpool_lapin::Runtime;
use deadpool_lapin::lapin::{
    options::BasicPublishOptions,
    BasicProperties,
};
use dotenv::dotenv;

#[derive(Debug, serde::Deserialize)]
struct Config {
    #[serde(default)]
    amqp: deadpool_lapin::Config
}

impl Config {
    pub fn from_env() -> Result<Self, config::ConfigError> {
        let mut cfg = config::Config::new();
        cfg.merge(config::Environment::new().separator("__"))?;
        cfg.try_into()
    }
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    dotenv().ok();
    let mut cfg = Config::from_env().unwrap();
    let pool = cfg.amqp.create_pool(Some(Runtime::Tokio1)).unwrap();
    for _ in 1..10 {
        let mut connection = pool.get().await?;
        let channel = connection.create_channel().await?;
        channel.basic_publish(
            "",
            "hello",
            BasicPublishOptions::default(),
            b"hello from deadpool".to_vec(),
            BasicProperties::default(),
        ).await?;
    }
    Ok(())
}