/**
* Solana Core Logger
* Production logging with structured output
*/
import winston from 'winston';
const { combine, timestamp, errors, json, printf, colorize } = winston.format;
const isProduction = process.env.NODE_ENV === 'production';
const enableRpcLogging = process.env.SOLANA_LOG_RPC === 'true';
const devFormat = printf(({ level, message, timestamp, ...meta }) => {
const metaStr = Object.keys(meta).length ? ` ${JSON.stringify(meta)}` : '';
return `${timestamp} [solana-core] ${level}: ${message}${metaStr}`;
});
export const logger = winston.createLogger({
level: process.env.LOG_LEVEL || (isProduction ? 'info' : 'debug'),
format: combine(
timestamp({ format: 'YYYY-MM-DD HH:mm:ss.SSS' }),
errors({ stack: true }),
isProduction ? json() : combine(colorize(), devFormat)
),
defaultMeta: { service: 'solana-core' },
transports: [new winston.transports.Console()],
silent: process.env.NODE_ENV === 'test',
});
export function logRpc(method: string, endpoint: string, durationMs: number, error?: Error): void {
if (!enableRpcLogging) return;
if (error) {
logger.warn('RPC call failed', { method, endpoint, durationMs, error: error.message });
} else {
logger.debug('RPC call', { method, endpoint, durationMs });
}
}
export function logTransaction(signature: string, status: string, details?: Record<string, unknown>): void {
logger.info('Transaction', { signature: signature.slice(0, 16) + '...', status, ...details });
}
export function logSubscription(type: string, id: number, target: string): void {
logger.debug('Subscription', { type, id, target });
}
