@lspeasy/middleware-pino

Pino-compatible structured logging middleware for lspeasy middleware pipelines.

Installation

pnpm add @lspeasy/middleware-pino pino

Usage

import pino from 'pino';
import { LSPClient } from '@lspeasy/client';
import { createPinoMiddleware } from '@lspeasy/middleware-pino';

const logger = pino({ level: 'info' });

const client = new LSPClient({
	name: 'logging-client',
	version: '1.0.0',
	middleware: [
		createPinoMiddleware(logger, {
			level: 'debug',
			includeMessageContent: false,
			staticFields: {
				service: 'lsp-client'
			}
		})
	]
});

Options

• level: logging level (trace, debug, info, warn, error, fatal)
• includeMessageContent: include full JSON-RPC message payload in log records
• staticFields: fixed metadata included in every log record
• formatMessage: custom formatter for emitted log messages

Behavior

• Emits a before log event prior to the next middleware/handler.
• Emits an after log event on successful completion with durationMs.
• Emits an error log event when downstream middleware/handler throws.