CloudWatch Logging SDK for Rust

The CloudWatch Logging SDK for Rust provides a simple and efficient way to log to Amazon CloudWatch.

Features

Easy setup for CloudWatch logging.
Automatic batching and non-blocking flushes for optimal performance.
Seamless panic logging for enhanced reliability.
Singleton feature for easy access to the logger from anywhere in your application.
Thread-safe, ensuring consistent logging across multithreaded applications.

Installation

Add the following dependency to your Cargo.toml file:

[dependencies]
cloudwatch-logging = "0.2.5"

Breaking Changes

Version 0.2.0

Entry point is now LoggerHandle instead of Logger
Logger::get is now LoggerHandle::get_or_setup with the singleton feature enabled
Now takes static string slices instead of owned strings.

The api is now stable and will not change unless there is a major version bump. Migrating to the new version requires very little effort, everything remained the same outside the entry point.

Usage

use cloudwatch_logging::prelude::*;

async fn example() -> Result<(), LoggerError> {
    let logger = LoggerHandle::setup(
        "test-group",     // log group
        "test-stream",    // log stream
        20,               // batch size
        Duration::from_secs(5),  // flush interval
    ).await?;
    
    logger.info("Hello, world!".to_string()).await?;
    logger.error("Something went wrong!".to_string()).await
}

cloudwatch_logging::__doc_test!(example);

Logging Panics

use cloudwatch_logging::prelude::*;

async fn example() -> Result<(), LoggerError> {
    let logger = LoggerHandle::setup(
        "test-group",   // log group
        "test-stream",  // log stream
        20,             // batch size
        Duration::from_secs(5),  // flush interval
    ).await?;
    
    logger.log_panics();  // future panics will be logged to cloudwatch
    
    panic!("This will be logged to cloudwatch!");
    
    Ok(())
}

cloudwatch_logging::__doc_test_panics!(example, "This will be logged to cloudwatch!");

singleton Feature

use cloudwatch_logging::prelude::*;

#[cfg(feature = "singleton")]
async fn example() -> Result<(), LoggerError> {
    let logger = LoggerHandle::get_or_setup(  // will only setup once
        "test-group",   // log group
        "test-stream",  // log stream
        20,             // batch size
        Duration::from_secs(5),  // flush interval
    ).await?;
    
    logger.info("Hello, world!".to_string()).await?;
    logger.error("Something went wrong!".to_string()).await
}

#[cfg(feature = "singleton")]
cloudwatch_logging::__doc_test!(example);

singleton Feature: initializing with environment variables

use cloudwatch_logging::prelude::*;
use std::env;

#[cfg(feature = "singleton")]
async fn example() -> Result<(), LoggerError> {
    env::set_var("TEST_GROUP", "test-group");
    env::set_var("TEST_STREAM", "test-stream");
    
    let logger = LoggerHandle::get_or_setup_with_env(
        "TEST_GROUP",   // log group env var
        "TEST_STREAM",  // log stream env var
        20,             // batch size
        Duration::from_secs(5),  // flush interval
    ).await?;
    
    logger.info("Hello, world!".to_string()).await?;
    logger.error("Something went wrong!".to_string()).await
}

#[cfg(feature = "singleton")]
cloudwatch_logging::__doc_test!(example);

Documentation

For more information, please refer to the current documentation.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgements

We'd like to acknowledge the incredible work of the Rusoto community for their AWS SDK, their thoughtful implementation of Smithy, and their dedication to the Rust community.

Rusoto & Official AWS SDK for Rust

Rusoto is no longer maintained, although, it is still appropriate for and used in production environments. Once the official AWS SDK for Rust is stable, this crate will be updated to use it instead.

cloudwatch_logging 0.2.5