slog_mongodb

MongoDB extension for Rust's logging library slog-rs. Serializes slog messages to BSON documents and stores them in a MongoDB collection. To reduce the stress on the database, the logged messages are buffered and only sent in configurable time intervals.

Usage

use slog::*;

fn main() {
    let client = mongodb::Client::with_uri_str("mongodb://localhost:27017/").unwrap();
    let db = client.database("some_db");
    let logs = db.collection("logs");

    let drain = slog_mongodb::MongoDBDrain::new(logs, std::time::Duration::from_secs(5)).fuse();
    let drain = slog_async::Async::new(drain).build().fuse();

    let log = Logger::root(drain, o!());
    info!(log, "Hello MongoDB!");
}

Notes

By default, the logged messages contain the following values:

• "ts": RFC3339 timestamp
• "level": "TRCE", "INFO", "WARN", "ERRO" or "CRIT"
• "leveli": 4 - 0
• "msg": the log message

This behavior can be changed by constructing the drain as follows:

use slog::*;

fn main() {
    let client = mongodb::Client::with_uri_str("mongodb://localhost:27017/").unwrap();
    let db = client.database("some_db");
    let logs = db.collection("logs");

    let drain = MongoDBDrainBuilder::new(logs, std::time::Duration::from_secs(5))
            .add_key_value(o!("key" => "value")).build();
    let drain = slog_async::Async::new(drain).build().fuse();

    let log = Logger::root(drain, o!());
    info!(log, "Hello MongoDB!");
}

Credits

The serde serialization as well as the overall design is copied from slog-json.