pino-quiet is a lightweight transport that reduces log noise by collapsing repeated consecutive log messages into a single entry with a repetition counter.

It improves readability, cuts storage costs, and requires zero changes to your existing logging calls.

Features

• Zero-Config: Works out of the box with standard defaults.

• Noise Reduction: Turns 1,000 "Connection Failed" logs into 1 log with (x1000).

• High Performance: Runs in a worker thread via pino-abstract-transport to keep your main loop free.

• Flexible: Supports "Simple" mode (message only) or "Strict" mode (deep object comparison).

Installation

npm i pino-quiet

Usage

Basic Usage (msg comparison)

By default, pino-quiet only checks if the log msg string is identical. This is the fastest method.

const logger = pino({
  transport: {
    target: 'pino-quiet',
    options: {
      // By default, writes to stdout (fd 1)
    }
  }
});

logger.info('Connecting...');
logger.info('Connecting...');
logger.info('Connecting...');
logger.info('Connected!');

// Output:
// {"level":30,"time":...,"msg":"Connecting... (x3)","repeats":3}
// {"level":30,"time":...,"msg":"Connected!"}

Strict Usage (Deep comparison)

If you log metadata objects, you might want to deduplicate based on the entire object content (ignoring time, pid, and hostname).

const logger = pino({
  transport: {
    target: 'pino-quiet',
    options: {
      strict: true // Enable deep comparison
    }
  }
});

// These will be collapsed because the data { id: 1 } matches,
// even though the timestamps differ.
logger.error({ id: 1 }, 'Transaction failed');
logger.error({ id: 1 }, 'Transaction failed');

How it works

• pino-quiet buffers the most recent log message.

• When a new log arrives, it compares it to the buffered log.

• If Match: It increments a counter and does not write to output.

• If Different: It flushes the buffered log (with the updated count) and buffers the new one.

Contributing

Contributions welcome! Please open issues for feature requests or bugs.

License

MIT — see LICENSE for details.