#ndjson #log #logger #logging #pretty-print #debugging-logging

femme

Not just a pretty (inter)face: pretty-printer and ndjson logger for log crate

10 stable releases

2.2.1 May 9, 2022
2.2.0 Apr 5, 2022
2.1.2 Dec 4, 2020
2.1.1 Aug 10, 2020
1.1.0 Jul 20, 2019

#294 in Debugging

Download history 38865/week @ 2024-11-08 38425/week @ 2024-11-15 33404/week @ 2024-11-22 34261/week @ 2024-11-29 39782/week @ 2024-12-06 36302/week @ 2024-12-13 14445/week @ 2024-12-20 14281/week @ 2024-12-27 31177/week @ 2025-01-03 41273/week @ 2025-01-10 38888/week @ 2025-01-17 38656/week @ 2025-01-24 37463/week @ 2025-01-31 40468/week @ 2025-02-07 23181/week @ 2025-02-14

106,847 downloads per month
Used in 53 crates (40 directly)

MIT/Apache

570KB
218 lines

femme

crates.io version build status downloads docs.rs docs

Not just a pretty (inter)face.

A pretty-printer and ndjson logger for the log crate.

Examples

use kv_log_macro as log;

femme::with_level(femme::LevelFilter::Trace);
log::warn!("Unauthorized access attempt on /login");
log::info!("Listening on port 8080");

Prettified output will be displayed when debugging. In release mode, this logger will output to ndjson.

When using Wasm with #[cfg(target_arch = "wasm32")], Wasm logger will be used. Wasm logger uses web_sys crate to send console.log() to JavaScript.

Screenshots

Pretty Output

pretty printed logs

Newline Delimited JSON

ndjson

Installation

$ cargo add femme

License

MIT OR Apache-2.0

Dependencies

~1–4MB
~80K SLoC