improved logger

This commit is contained in:
Bojan Kucera 2025-06-07 10:07:49 -04:00
parent e8485dd140
commit 0f510bfa33
9 changed files with 110 additions and 1250 deletions

View file

@ -1,7 +1,7 @@
/**
* Data Service - Combined live and historical data ingestion
*/
import { createLogger, GracefulShutdownManager } from '@stock-bot/logger';
import { createLogger } from '@stock-bot/logger';
import { loadEnvVariables } from '@stock-bot/config';
import { Hono } from 'hono';
import { serve } from '@hono/node-server';
@ -11,7 +11,6 @@ loadEnvVariables();
const app = new Hono();
const logger = createLogger('data-service');
const shutdownManager = new GracefulShutdownManager(logger);
const PORT = parseInt(process.env.DATA_SERVICE_PORT || '3002');
// Health check endpoint

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@ -107,7 +107,8 @@ async function demonstrateCustomProxySource() {
sourceCount: customSources.length
});
} catch (error) {
logger.error('❌ Custom source scraping failed', error, {
logger.error('❌ Custom source scraping failed',{
error: error as Error,
sourceUrls: customSources.map(s => s.url)
});
}

View file

@ -97,7 +97,7 @@ export class ProxyService {
try {
await this.scrapeProxies();
} catch (error) {
this.logger.error('Error in periodic proxy refresh', { error });
this.logger.error('Error in periodic proxy refresh', {error});
}
}, intervalMs);
}
@ -169,7 +169,7 @@ export class ProxyService {
} catch (error) {
this.logger.error('Error scraping from source', {
url: source.url,
error: error instanceof Error ? error.message : String(error)
error: error
});
return [];
}
@ -318,7 +318,7 @@ export class ProxyService {
}
}
} catch (error) {
this.logger.error('Error updating proxy status', { error });
this.logger.error('Error updating proxy status', {error});
}
}
/**
@ -346,7 +346,7 @@ export class ProxyService {
this.logger.warn('No working proxies available');
return null;
} catch (error) {
this.logger.error('Error getting working proxy', { error });
this.logger.error('Error getting working proxy', {error});
return null;
}
}
@ -371,7 +371,7 @@ export class ProxyService {
return workingProxies;
} catch (error) {
this.logger.error('Error getting working proxies', { error });
this.logger.error('Error getting working proxies', {error});
return [];
}
}
@ -391,7 +391,7 @@ export class ProxyService {
this.logger.warn('getAllProxies not fully implemented - Redis cache provider limitations');
return proxies;
} catch (error) {
this.logger.error('Error getting all proxies', { error });
this.logger.error('Error getting all proxies', {error});
return [];
}
}
@ -424,7 +424,7 @@ export class ProxyService {
return stats;
} catch (error) {
this.logger.error('Error getting proxy stats', { error });
this.logger.error('Error getting proxy stats', {error});
return {
total: 0,
working: 0,
@ -485,7 +485,7 @@ export class ProxyService {
stillWorking: successCount
});
} catch (error) {
this.logger.error('Error in health check', { error });
this.logger.error('Error in health check', {error});
}
}, intervalMs);
}
@ -502,7 +502,7 @@ export class ProxyService {
this.logger.info('Cleared proxy stats from cache');
this.logger.warn('Full proxy data clearing not implemented due to cache provider limitations');
} catch (error) {
this.logger.error('Error clearing proxy data', { error });
this.logger.error('Error clearing proxy data', {error});
}
}

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@ -1,116 +0,0 @@
import pino from 'pino';
interface ShutdownHandler {
name: string;
handler: () => Promise<void> | void;
timeout?: number;
}
export class GracefulShutdownManager {
private logger: pino.Logger;
private handlers: ShutdownHandler[] = [];
private isShuttingDown = false;
private startTime = Date.now();
constructor(logger: pino.Logger) {
this.logger = logger;
this.setupSignalHandlers();
}
/**
* Register a shutdown handler
*/
addHandler(handler: ShutdownHandler): void {
this.handlers.push(handler);
}
/**
* Setup signal handlers for graceful shutdown
*/
private setupSignalHandlers(): void {
// Graceful shutdown signals
process.on('SIGTERM', () => this.shutdown('SIGTERM', 0));
process.on('SIGINT', () => this.shutdown('SIGINT', 0));
process.on('SIGUSR2', () => this.shutdown('SIGUSR2', 0)); // nodemon
// Fatal error handlers
process.on('uncaughtException', (error) => {
this.logger.error('Uncaught exception', error, { fatal: true });
this.shutdown('uncaughtException', 1);
});
process.on('unhandledRejection', (reason, promise) => {
this.logger.error('Unhandled promise rejection', {
reason: reason instanceof Error ? reason.message : reason,
stack: reason instanceof Error ? reason.stack : undefined,
fatal: true
});
this.shutdown('unhandledRejection', 1);
});
// Process warnings
process.on('warning', (warning) => {
this.logger.warn('Process warning', {
name: warning.name,
message: warning.message,
stack: warning.stack
});
});
// Final exit
process.on('exit', (code) => {
const uptime = Date.now() - this.startTime;
console.log(`Process exiting with code ${code} after ${uptime}ms`);
});
}
/**
* Execute graceful shutdown
*/
private async shutdown(signal: string, exitCode: number): Promise<void> {
if (this.isShuttingDown) {
this.logger.warn('Force shutdown - multiple signals received');
process.exit(1);
}
this.isShuttingDown = true;
const shutdownStart = Date.now();
this.logger.info('Graceful shutdown initiated', {
signal,
exitCode,
uptime: Date.now() - this.startTime,
memoryUsage: process.memoryUsage(),
handlersCount: this.handlers.length
});
// Execute shutdown handlers
for (const handler of this.handlers) {
try {
this.logger.info(`Executing shutdown handler: ${handler.name}`);
const timeout = handler.timeout || 5000;
await Promise.race([
Promise.resolve(handler.handler()),
new Promise((_, reject) =>
setTimeout(() => reject(new Error(`Timeout after ${timeout}ms`)), timeout)
)
]);
this.logger.info(`Shutdown handler completed: ${handler.name}`);
} catch (error) {
this.logger.error(`Shutdown handler failed: ${handler.name}`, error);
}
}
const shutdownDuration = Date.now() - shutdownStart;
this.logger.info('Graceful shutdown completed', {
signal,
shutdownDuration,
totalUptime: Date.now() - this.startTime
});
// Give logs time to flush
setTimeout(() => process.exit(exitCode), 100);
}
}

View file

@ -1,49 +1,14 @@
/**
* @stock-bot/logger - Enhanced logging library with Loki integration
* @stock-bot/logger - Simplified logging library
*
* Main exports for the logger library
*/
// Core logger classes and functions
export { Logger, createLogger, getLogger, shutdownLoggers } from './logger';
export { Logger, createLogger, getLogger } from './logger';
// Utility functions
export {
createTimer,
formatError,
sanitizeMetadata,
generateCorrelationId,
extractHttpMetadata,
createBusinessEvent,
createSecurityEvent,
maskSensitiveData,
calculateLogSize,
LogThrottle
} from './utils';
// Type definitions
export type { LogLevel, LogContext, LogMetadata } from './types';
// Hono middleware
export {
loggingMiddleware,
errorLoggingMiddleware,
createRequestLogger,
performanceMiddleware,
securityMiddleware,
businessEventMiddleware,
comprehensiveLoggingMiddleware
} from './middleware';
// Type exports
export type {
LogLevel,
LogContext,
LogMetadata,
LoggerOptions,
LokiTransportOptions,
PerformanceTimer,
LokiLogEntry,
StructuredLog
} from './types';
export type { LoggingMiddlewareOptions } from './middleware';
export { GracefulShutdownManager } from './gracefulShutdown';
// Default export
export { getLogger as default } from './logger';

View file

@ -1,59 +1,47 @@
/**
* Enhanced Pino-based logger with Loki integration for Stock Bot platform
* Simplified Pino-based logger for Stock Bot platform
*
* Features:
* - High performance JSON logging with Pino
* - Multiple log levels (debug, info, warn, error, http, verbose, silly)
* - Console and file logging with pino-pretty formatting
* - Loki integration for centralized logging
* - Console, file, and Loki transports
* - Structured logging with metadata
* - Flexible message handling (string or object)
* - Service-specific context
* - TypeScript-friendly interfaces
*/
import pino from 'pino';
import { loggingConfig, lokiConfig } from '@stock-bot/config';
import type { LogLevel, LogContext, LogMetadata } from './types';
// Global logger instances cache
const loggerInstances = new Map<string, pino.Logger>();
// Simple cache for logger instances
const loggerCache = new Map<string, pino.Logger>();
/**
* Create transport configuration for Pino based on options
* Create transport configuration
*/
function createTransports(serviceName: string, options?: {
enableConsole?: boolean;
enableFile?: boolean;
enableLoki?: boolean;
}): any {
const {
enableConsole = loggingConfig.LOG_CONSOLE,
enableFile = loggingConfig.LOG_FILE,
enableLoki = true
} = options || {};
function createTransports(serviceName: string): any {
const targets: any[] = [];
// Console transport with pretty formatting
if (enableConsole) {
// const isDev = loggingConfig.LOG_ENVIRONMENT === 'development';
// Console transport
if (loggingConfig.LOG_CONSOLE) {
targets.push({
target: 'pino-pretty',
level: loggingConfig.LOG_LEVEL,
options: {
colorize: true,
translateTime: 'yyyy-mm-dd HH:MM:ss.l',
ignore: 'pid,hostname,environment,version,service',
messageFormat: '[{service}] {msg}',
singleLine: true,
hideObject: false,
ignore: 'pid,hostname,service,environment,version',
errorLikeObjectKeys: ['err', 'error'],
errorProps: 'message,stack,name,code',
singleLine: false, // Allow multiline for better metadata display
hideObject: false, // Show metadata objects
}
});
}
// File transport for general logs
if (enableFile) {
// File transport
if (loggingConfig.LOG_FILE) {
targets.push({
target: 'pino/file',
level: loggingConfig.LOG_LEVEL,
@ -62,335 +50,153 @@ function createTransports(serviceName: string, options?: {
mkdir: true
}
});
// Separate error file if enabled
if (loggingConfig.LOG_ERROR_FILE) {
targets.push({
target: 'pino/file',
level: 'error',
options: {
destination: `${loggingConfig.LOG_FILE_PATH}/${serviceName}-error.log`,
mkdir: true
}
});
}
}
// Loki transport for centralized logging
if (enableLoki && lokiConfig.LOKI_HOST) {
// Loki transport
if (lokiConfig.LOKI_HOST) {
targets.push({
target: 'pino-loki',
level: loggingConfig.LOG_LEVEL,
options: {
batching: true,
interval: lokiConfig.LOKI_BATCH_WAIT,
host: lokiConfig.LOKI_URL || `http://${lokiConfig.LOKI_HOST}:${lokiConfig.LOKI_PORT}`,
basicAuth: lokiConfig.LOKI_USERNAME && lokiConfig.LOKI_PASSWORD
? {
username: lokiConfig.LOKI_USERNAME,
password: lokiConfig.LOKI_PASSWORD
}
: undefined,
labels: {
service: serviceName,
environment: lokiConfig.LOKI_ENVIRONMENT_LABEL,
...(lokiConfig.LOKI_DEFAULT_LABELS ? JSON.parse(lokiConfig.LOKI_DEFAULT_LABELS) : {})
},
timeout: lokiConfig.LOKI_PUSH_TIMEOUT || 10000,
silenceErrors: false,
// Better JSON handling
replaceTimestamp: false,
environment: lokiConfig.LOKI_ENVIRONMENT_LABEL
}
}
});
}
return {
targets
};
return targets.length > 0 ? { targets } : null;
}
/**
* Create or retrieve a logger instance for a specific service
* Get or create pino logger
*/
export function createLogger(serviceName: string, options?: {
level?: LogLevel;
enableLoki?: boolean;
enableFile?: boolean;
enableConsole?: boolean;
}): pino.Logger {
const key = `${serviceName}-${JSON.stringify(options || {})}`;
if (loggerInstances.has(key)) {
return loggerInstances.get(key)!;
}
function getPinoLogger(serviceName: string): pino.Logger {
if (!loggerCache.has(serviceName)) {
const transport = createTransports(serviceName);
const config: pino.LoggerOptions = {
level: loggingConfig.LOG_LEVEL,
base: {
service: serviceName,
environment: loggingConfig.LOG_ENVIRONMENT,
version: loggingConfig.LOG_SERVICE_VERSION
}
};
const logger = buildLogger(serviceName, options);
loggerInstances.set(key, logger);
return logger;
}
/**
* Build a Pino logger with all configured transports
*/
function buildLogger(serviceName: string, options?: {
level?: LogLevel;
enableLoki?: boolean;
enableFile?: boolean;
enableConsole?: boolean;
}): pino.Logger {
const {
level = loggingConfig.LOG_LEVEL as LogLevel,
enableLoki = true,
enableFile = loggingConfig.LOG_FILE,
enableConsole = loggingConfig.LOG_CONSOLE
} = options || {};
const transport = createTransports(serviceName, {
enableConsole,
enableFile,
enableLoki
});
const loggerConfig: pino.LoggerOptions = {
level: level,
timestamp: () => `,"timestamp":"${new Date().toISOString()}"`,
base: {
service: serviceName,
environment: loggingConfig.LOG_ENVIRONMENT,
version: loggingConfig.LOG_SERVICE_VERSION
if (transport) {
config.transport = transport;
}
};
// Only add transport if targets exist to avoid worker thread issues
if (transport && transport.targets && transport.targets.length > 0) {
loggerConfig.transport = transport;
loggerCache.set(serviceName, pino(config));
}
return pino(loggerConfig);
return loggerCache.get(serviceName)!;
}
/**
* Enhanced Logger class with convenience methods and flexible message handling
* Simplified Logger class
*/
export class Logger {
private pino: pino.Logger;
private serviceName: string;
private context: LogContext;
constructor(serviceName: string, context: LogContext = {}, options?: {
level?: LogLevel;
enableLoki?: boolean;
enableFile?: boolean;
enableConsole?: boolean;
}) {
this.serviceName = serviceName;
constructor(serviceName: string, context: LogContext = {}) {
this.pino = getPinoLogger(serviceName);
this.context = context;
this.pino = createLogger(serviceName, options);
}
/**
* Flexible log method that accepts string or object messages
* Core log method
*/
log(level: LogLevel, message: string | object, metadata?: LogMetadata): void {
const logData = {
...this.context,
...metadata,
};
private log(level: LogLevel, message: string | object, metadata?: LogMetadata): void {
const data = { ...this.context, ...metadata };
if (typeof message === 'string') {
(this.pino as any)[level](logData, message);
(this.pino as any)[level](data, message);
} else {
// For object messages, use the message object as the main log data
// and add metadata without overwriting properties from the message
const messageObj = message as Record<string, any>;
const combinedData = { ...logData };
// Add message properties that don't conflict with metadata
Object.keys(messageObj).forEach(key => {
if (!(key in combinedData)) {
combinedData[key] = messageObj[key];
}
});
(this.pino as any)[level](combinedData, messageObj.msg || messageObj.message || 'Object log');
(this.pino as any)[level]({ ...data, data: message }, 'Object logged');
}
}
/**
* Debug level logging
*/
// Simple log level methods
debug(message: string | object, metadata?: LogMetadata): void {
this.log('debug', message, metadata);
}
/**
* Verbose level logging
*/
verbose(message: string | object, metadata?: LogMetadata): void {
// Map verbose to debug level since Pino doesn't have verbose by default
this.log('debug', message, { ...metadata, originalLevel: 'verbose' });
}
/**
* Silly level logging
*/
silly(message: string | object, metadata?: LogMetadata): void {
// Map silly to debug level since Pino doesn't have silly by default
this.log('debug', message, { ...metadata, originalLevel: 'silly' });
}
/**
* Info level logging
*/
info(message: string | object, metadata?: LogMetadata): void {
this.log('info', message, metadata);
}
/**
* Warning level logging
*/
warn(message: string | object, metadata?: LogMetadata): void {
this.log('warn', message, metadata);
}
/**
* Error level logging with proper pino-pretty formatting
*/
error(message: string | object, error?: Error | any, metadata?: LogMetadata): void {
const logData: LogMetadata = { ...metadata };
error(message: string | object, metadata?: LogMetadata & { error?: any }): void {
const data = { ...metadata };
if (error) {
if (error instanceof Error) {
// Use 'err' key for pino-pretty compatibility
logData.err = error;
} else {
logData.error = error;
}
// Handle any type of error automatically
if (data.error) {
data.err = this.normalizeError(data.error);
delete data.error;
}
this.log('error', message, logData);
this.log('error', message, data);
}
/**
* HTTP request logging
* Normalize any error type to a structured format
*/
http(message: string | object, requestData?: {
method?: string;
url?: string;
statusCode?: number;
responseTime?: number;
userAgent?: string;
ip?: string;
}): void {
if (!loggingConfig.LOG_HTTP_REQUESTS) return;
this.log('info', message, {
request: requestData,
type: 'http_request'
});
private normalizeError(error: any): any {
if (error instanceof Error) {
return {
name: error.name,
message: error.message,
stack: error.stack,
};
}
if (error && typeof error === 'object') {
// Handle error-like objects
return {
name: error.name || 'UnknownError',
message: error.message || error.toString(),
...(error.stack && { stack: error.stack }),
...(error.code && { code: error.code }),
...(error.status && { status: error.status })
};
}
// Handle primitives (string, number, etc.)
return {
name: 'UnknownError',
message: String(error)
};
}
/**
* Performance/timing logging
*/
performance(message: string | object, timing: {
operation: string;
duration: number;
startTime?: number;
endTime?: number;
}): void {
if (!loggingConfig.LOG_PERFORMANCE) return;
this.log('info', message, {
performance: timing,
type: 'performance'
});
}
/**
* Business event logging
*/
business(message: string | object, event: {
type: string;
entity?: string;
action?: string;
result?: 'success' | 'failure' | 'partial';
amount?: number;
symbol?: string;
}): void {
this.log('info', message, {
business: event,
type: 'business_event'
});
}
/**
* Security event logging
*/
security(message: string | object, event: {
type: 'authentication' | 'authorization' | 'access' | 'vulnerability';
user?: string;
resource?: string;
action?: string;
result?: 'success' | 'failure';
ip?: string;
severity?: 'low' | 'medium' | 'high' | 'critical';
}): void {
this.log('warn', message, {
security: event,
type: 'security_event'
});
}
/**
* Create a child logger with additional context
* Create child logger with additional context
*/
child(context: LogContext): Logger {
return new Logger(this.serviceName, { ...this.context, ...context });
}
/**
* Add persistent context to this logger
*/
addContext(context: LogContext): void {
this.context = { ...this.context, ...context };
}
/**
* Get the underlying Pino logger
*/
getPinoLogger(): pino.Logger {
return this.pino;
}
/**
* Gracefully close all transports
*/
async close(): Promise<void> {
// Pino doesn't require explicit closing like Winston
// But we can flush any pending logs
this.pino.flush();
return new Logger((this.pino.bindings() as any).service, { ...this.context, ...context });
}
}
/**
* Create a default logger instance for a service
* Main factory function
*/
export function getLogger(serviceName: string, context?: LogContext): Logger {
return new Logger(serviceName, context);
}
/**
* Shutdown all logger instances gracefully
* Keep backward compatibility
*/
export async function shutdownLoggers(): Promise<void> {
// Flush all logger instances
const flushPromises = Array.from(loggerInstances.values()).map(logger => {
logger.flush();
return Promise.resolve();
});
await Promise.all(flushPromises);
loggerInstances.clear();
export function createLogger(serviceName: string): pino.Logger {
return getPinoLogger(serviceName);
}
// Export types for convenience

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@ -1,462 +0,0 @@
/**
* Comprehensive Hono middleware for request logging with Pino integration
*/
import type { Context, Next } from 'hono';
import { Logger } from './logger';
import { generateCorrelationId, createTimer, sanitizeMetadata, LogThrottle } from './utils';
export interface LoggingMiddlewareOptions {
logger?: Logger;
serviceName?: string;
skipPaths?: string[];
skipSuccessfulRequests?: boolean;
logRequestBody?: boolean;
logResponseBody?: boolean;
maxBodySize?: number;
enablePerformanceMetrics?: boolean;
enableThrottling?: boolean;
throttleConfig?: {
maxLogs?: number;
windowMs?: number;
};
sensitiveHeaders?: string[];
redactSensitiveData?: boolean;
}
/**
* Hono middleware for HTTP request/response logging with enhanced features
*/
export function loggingMiddleware(options: LoggingMiddlewareOptions = {}) {
const {
serviceName = 'unknown-service',
skipPaths = ['/health', '/metrics', '/favicon.ico'],
skipSuccessfulRequests = false,
logRequestBody = false,
logResponseBody = false,
maxBodySize = 1024,
enablePerformanceMetrics = true,
enableThrottling = false,
throttleConfig = { maxLogs: 100, windowMs: 60000 },
sensitiveHeaders = ['authorization', 'cookie', 'x-api-key', 'x-auth-token'],
redactSensitiveData = true
} = options;
// Create logger if not provided
const logger = options.logger || new Logger(serviceName);
// Create throttle instance if enabled
const throttle = enableThrottling ? new LogThrottle(throttleConfig.maxLogs, throttleConfig.windowMs) : null;
return async (c: Context, next: Next) => {
const url = new URL(c.req.url);
const path = url.pathname;
// Skip certain paths
if (skipPaths.some(skipPath => path.startsWith(skipPath))) {
return next();
}
// Check throttling
const throttleKey = `${c.req.method}-${path}`;
if (throttle && !throttle.shouldLog(throttleKey)) {
return next();
}
// Generate correlation ID
const correlationId = generateCorrelationId();
// Store correlation ID in context for later use
c.set('correlationId', correlationId);
// Set correlation ID as response header
c.header('x-correlation-id', correlationId);
// Start timer
const timer = createTimer(`${c.req.method} ${path}`);
// Extract request headers (sanitized)
const rawHeaders = Object.fromEntries(
Array.from(c.req.raw.headers.entries())
);
const headers = redactSensitiveData
? Object.fromEntries(
Object.entries(rawHeaders).map(([key, value]) => [
key,
sensitiveHeaders.some(sensitive => key.toLowerCase().includes(sensitive.toLowerCase()))
? '[REDACTED]'
: value
])
)
: rawHeaders; // Extract request metadata following LogMetadata.request structure
const requestMetadata: any = {
method: c.req.method,
url: c.req.url,
path: path,
userAgent: c.req.header('user-agent'),
contentType: c.req.header('content-type'),
contentLength: c.req.header('content-length'),
ip: c.req.header('x-forwarded-for') || c.req.header('x-real-ip') || 'unknown',
headers: headers
};
// Add request body if enabled
if (logRequestBody) {
try {
const body = await c.req.text();
if (body) {
requestMetadata.body = body.length > maxBodySize
? body.substring(0, maxBodySize) + '...[truncated]'
: body;
}
} catch (error) {
// Body might not be available or already consumed
requestMetadata.bodyError = 'Unable to read request body';
}
} // Log request start with structured data
logger.http('HTTP Request started', {
method: c.req.method,
url: c.req.url,
userAgent: c.req.header('user-agent'),
ip: c.req.header('x-forwarded-for') || c.req.header('x-real-ip') || 'unknown'
});
let error: Error | null = null;
let responseTime: number = 0;
try {
// Process request
await next();
} catch (err) {
error = err instanceof Error ? err : new Error(String(err));
throw error; // Re-throw to maintain error handling flow
} finally {
// Calculate response time
const timing = timer.end();
responseTime = timing.duration;
// Get response information
const response = c.res;
const status = response.status;
// Determine log level based on status code
const isError = status >= 400 || error !== null;
const isSuccess = status >= 200 && status < 300;
const isRedirect = status >= 300 && status < 400;
// Skip successful requests if configured
if (skipSuccessfulRequests && isSuccess && !error) {
return;
}
// Extract response headers (sanitized)
const rawResponseHeaders = Object.fromEntries(
Array.from(response.headers.entries())
);
const responseHeaders = redactSensitiveData
? Object.fromEntries(
Object.entries(rawResponseHeaders).map(([key, value]) => [
key,
sensitiveHeaders.some(sensitive => key.toLowerCase().includes(sensitive.toLowerCase()))
? '[REDACTED]'
: value
])
)
: rawResponseHeaders;
const responseMetadata: any = {
statusCode: status,
statusText: response.statusText,
headers: responseHeaders,
contentLength: response.headers.get('content-length'),
contentType: response.headers.get('content-type')
};
// Add response body if enabled and not an error
if (logResponseBody && !isError) {
try {
const responseBody = await response.clone().text();
if (responseBody) {
responseMetadata.body = responseBody.length > maxBodySize
? responseBody.substring(0, maxBodySize) + '...[truncated]'
: responseBody;
}
} catch (bodyError) {
responseMetadata.bodyError = 'Unable to read response body';
}
} // Performance metrics matching LogMetadata.performance structure
const performanceMetrics = {
operation: timing.operation,
duration: timing.duration,
startTime: enablePerformanceMetrics ? timing.startTime : undefined,
endTime: enablePerformanceMetrics ? timing.endTime : undefined
}; // Create comprehensive log entry
const logEntry: any = {
correlationId,
request: requestMetadata,
response: responseMetadata,
performance: performanceMetrics,
type: error ? 'custom' : isError ? 'custom' : 'http_request'
};
// Sanitize if needed
const finalLogEntry = redactSensitiveData ? sanitizeMetadata(logEntry) : logEntry; // Log based on status code and errors
if (error) {
logger.error('HTTP Request error', error, finalLogEntry);
} else if (isError) {
logger.warn('HTTP Request failed', finalLogEntry);
} else if (isRedirect) {
logger.info('HTTP Request redirected', finalLogEntry);
} else {
logger.http('HTTP Request completed', {
method: c.req.method,
url: c.req.url,
statusCode: status,
responseTime: timing.duration,
userAgent: c.req.header('user-agent'),
ip: c.req.header('x-forwarded-for') || c.req.header('x-real-ip') || 'unknown'
});
}
}
};
}
/**
* Error logging middleware for Hono
*/
export function errorLoggingMiddleware(logger?: Logger) {
return async (c: Context, next: Next) => {
const errorLogger = logger || new Logger('error-handler');
try {
await next();
} catch (err) {
const correlationId = c.get('correlationId') || c.req.header('x-correlation-id');
const url = new URL(c.req.url);
const requestMetadata = {
method: c.req.method,
url: c.req.url,
path: url.pathname,
userAgent: c.req.header('user-agent'),
ip: c.req.header('x-forwarded-for') || c.req.header('x-real-ip') || 'unknown'
};
errorLogger.error('Unhandled HTTP error', err instanceof Error ? err : new Error(String(err)), {
correlationId,
request: requestMetadata,
response: {
statusCode: c.res.status
}
});
// Re-throw the error so Hono can handle it
throw err;
}
};
}
/**
* Create a child logger with request context for Hono
*/
export function createRequestLogger(c: Context, baseLogger: Logger): Logger {
const correlationId = c.get('correlationId') || c.req.header('x-correlation-id');
const url = new URL(c.req.url);
return baseLogger.child({
correlationId,
requestId: correlationId,
method: c.req.method,
path: url.pathname,
userAgent: c.req.header('user-agent'),
ip: c.req.header('x-forwarded-for') || c.req.header('x-real-ip') || 'unknown'
});
}
/**
* Performance monitoring middleware for specific operations
*/
export function performanceMiddleware(operationName?: string, logger?: Logger) {
return async (c: Context, next: Next) => {
const perfLogger = logger || new Logger('performance');
const operation = operationName || `${c.req.method} ${new URL(c.req.url).pathname}`;
const timer = createTimer(operation);
try {
await next();
const timing = timer.end();
perfLogger.info('Operation completed', {
type: 'performance',
performance: timing,
correlationId: c.get('correlationId')
});
} catch (error) {
const timing = timer.end();
perfLogger.warn('Operation failed', {
type: 'performance',
performance: timing,
correlationId: c.get('correlationId'),
error: error instanceof Error ? {
name: error.name,
message: error.message,
stack: error.stack
} : { message: String(error) }
});
throw error;
}
};
}
/**
* Security event logging middleware
*/
export function securityMiddleware(logger?: Logger) {
return async (c: Context, next: Next) => {
const secLogger = logger || new Logger('security');
const url = new URL(c.req.url);
// Log authentication attempts
const authHeader = c.req.header('authorization');
if (authHeader) {
secLogger.info('Authentication attempt', {
type: 'security_event',
security: {
type: 'authentication',
ip: c.req.header('x-forwarded-for') || c.req.header('x-real-ip') || 'unknown',
resource: url.pathname,
action: 'access_attempt'
},
correlationId: c.get('correlationId')
});
}
await next();
// Log access control
const status = c.res.status;
if (status === 401 || status === 403) {
secLogger.warn('Access denied', {
type: 'security_event',
security: {
type: 'authorization',
result: 'failure',
ip: c.req.header('x-forwarded-for') || c.req.header('x-real-ip') || 'unknown',
resource: url.pathname,
action: c.req.method,
severity: status === 401 ? 'medium' : 'high'
},
correlationId: c.get('correlationId')
});
}
};
}
/**
* Business event logging middleware for trading operations
*/
export function businessEventMiddleware(logger?: Logger) {
return async (c: Context, next: Next) => {
const bizLogger = logger || new Logger('business');
const url = new URL(c.req.url);
const path = url.pathname;
// Check if this is a business-critical endpoint
const businessEndpoints = [
'/api/orders',
'/api/trades',
'/api/portfolio',
'/api/strategies',
'/api/signals'
];
const isBusinessEndpoint = businessEndpoints.some(endpoint => path.startsWith(endpoint));
if (isBusinessEndpoint) {
const timer = createTimer(`business_${c.req.method}_${path}`);
try {
await next();
const timing = timer.end();
const status = c.res.status;
bizLogger.info('Business operation completed', {
type: 'business_event',
business: {
type: 'trading_operation',
action: c.req.method,
result: status >= 200 && status < 300 ? 'success' : 'failure'
},
performance: timing,
correlationId: c.get('correlationId')
});
} catch (error) {
const timing = timer.end();
bizLogger.error('Business operation failed', error, {
type: 'business_event',
business: {
type: 'trading_operation',
action: c.req.method,
result: 'failure'
},
performance: timing,
correlationId: c.get('correlationId')
});
throw error;
}
} else {
await next();
}
};
}
/**
* Comprehensive logging middleware that combines all logging features
*/
export function comprehensiveLoggingMiddleware(options: LoggingMiddlewareOptions & {
enableSecurity?: boolean;
enableBusiness?: boolean;
enablePerformance?: boolean;
} = {}) {
const {
enableSecurity = true,
enableBusiness = true,
enablePerformance = true,
...loggingOptions
} = options;
return async (c: Context, next: Next) => {
const middlewares: Array<(c: Context, next: Next) => Promise<void>> = [];
// Add security middleware
if (enableSecurity) {
middlewares.push(securityMiddleware(options.logger));
}
// Add performance middleware
if (enablePerformance) {
middlewares.push(performanceMiddleware(undefined, options.logger));
}
// Add business event middleware
if (enableBusiness) {
middlewares.push(businessEventMiddleware(options.logger));
}
// Add main logging middleware
middlewares.push(loggingMiddleware(loggingOptions));
// Execute middleware chain
let index = 0;
async function dispatch(i: number): Promise<void> {
if (i >= middlewares.length) {
return next();
}
const middleware = middlewares[i];
return middleware(c, () => dispatch(i + 1));
}
return dispatch(0);
};
}

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@ -1,119 +1,16 @@
/**
* Type definitions for the logger library
* Simplified type definitions for the logger library
*/
// Standard log levels
export type LogLevel = 'error' | 'warn' | 'info' | 'http' | 'verbose' | 'debug' | 'silly';
// Standard log levels (simplified to pino defaults)
export type LogLevel = 'debug' | 'info' | 'warn' | 'error';
// Context that persists across log calls
export interface LogContext {
[key: string]: any;
requestId?: string;
sessionId?: string;
userId?: string;
traceId?: string;
spanId?: string;
correlationId?: string;
}
// Metadata for individual log entries
export interface LogMetadata {
[key: string]: any;
correlationId?: string;
error?: {
name: string;
message: string;
stack?: string;
} | any;request?: {
method?: string;
url?: string;
path?: string;
statusCode?: number;
responseTime?: number;
userAgent?: string;
ip?: string;
body?: string;
headers?: Record<string, string>;
contentType?: string;
contentLength?: string;
};
performance?: {
operation: string;
duration: number;
startTime?: number;
endTime?: number;
};
business?: {
type: string;
entity?: string;
action?: string;
result?: 'success' | 'failure' | 'partial';
amount?: number;
symbol?: string;
};
security?: {
type: 'authentication' | 'authorization' | 'access' | 'vulnerability';
user?: string;
resource?: string;
action?: string;
result?: 'success' | 'failure';
ip?: string;
severity?: 'low' | 'medium' | 'high' | 'critical';
};
type?: 'http_request' | 'performance' | 'business_event' | 'security_event' | 'system' | 'custom';
}
// Logger configuration options
export interface LoggerOptions {
level?: LogLevel;
enableLoki?: boolean;
enableFile?: boolean;
enableConsole?: boolean;
}
// Loki-specific configuration
export interface LokiTransportOptions {
host: string;
port?: number;
url?: string;
username?: string;
password?: string;
tenantId?: string;
labels?: Record<string, string>;
batchSize?: number;
interval?: number;
timeout?: number;
json?: boolean;
batching?: boolean;
basicAuth?: string;
}
// Performance timer utility type
export interface PerformanceTimer {
operation: string;
startTime: number;
end(): { operation: string; duration: number; startTime: number; endTime: number };
}
// Log entry structure for Loki
export interface LokiLogEntry {
timestamp: string;
level: LogLevel;
message: string;
service: string;
environment?: string;
version?: string;
metadata?: LogMetadata;
}
// Structured log format
export interface StructuredLog {
timestamp: string;
level: LogLevel;
service: string;
message: string;
context?: LogContext;
metadata?: LogMetadata;
environment?: string;
version?: string;
}

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@ -1,230 +0,0 @@
/**
* Utility functions for logging operations
*/
import type { PerformanceTimer, LogMetadata } from './types';
/**
* Create a performance timer to measure operation duration
*/
export function createTimer(operation: string): PerformanceTimer {
const startTime = Date.now();
return {
operation,
startTime,
end() {
const endTime = Date.now();
return {
operation,
duration: endTime - startTime,
startTime,
endTime
};
}
};
}
/**
* Format error for logging
*/
export function formatError(error: Error | any): LogMetadata['error'] {
if (error instanceof Error) {
return {
name: error.name,
message: error.message,
stack: error.stack
};
}
if (typeof error === 'object' && error !== null) {
return {
name: error.constructor?.name || 'UnknownError',
message: error.message || error.toString(),
...error
};
}
return {
name: 'UnknownError',
message: String(error)
};
}
/**
* Sanitize sensitive data from log metadata
*/
export function sanitizeMetadata(metadata: LogMetadata): LogMetadata {
const sensitiveKeys = [
'password', 'token', 'secret', 'key', 'apiKey', 'api_key',
'authorization', 'auth', 'credential', 'credentials'
];
function sanitizeValue(value: any): any {
if (typeof value === 'string') {
return '[REDACTED]';
}
if (Array.isArray(value)) {
return value.map(sanitizeValue);
}
if (typeof value === 'object' && value !== null) {
const sanitized: any = {};
for (const [key, val] of Object.entries(value)) {
const lowerKey = key.toLowerCase();
if (sensitiveKeys.some(sensitive => lowerKey.includes(sensitive))) {
sanitized[key] = '[REDACTED]';
} else {
sanitized[key] = sanitizeValue(val);
}
}
return sanitized;
}
return value;
}
const sanitized: LogMetadata = {};
for (const [key, value] of Object.entries(metadata)) {
const lowerKey = key.toLowerCase();
if (sensitiveKeys.some(sensitive => lowerKey.includes(sensitive))) {
sanitized[key] = '[REDACTED]';
} else {
sanitized[key] = sanitizeValue(value);
}
}
return sanitized;
}
/**
* Generate a correlation ID for request tracking
*/
export function generateCorrelationId(): string {
return `${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
}
/**
* Extract relevant HTTP request information for logging
*/
export function extractHttpMetadata(req: any): LogMetadata['request'] {
if (!req) return undefined;
return {
method: req.method,
url: req.url || req.originalUrl,
userAgent: req.get?.('User-Agent') || req.headers?.['user-agent'],
ip: req.ip || req.connection?.remoteAddress || req.headers?.['x-forwarded-for']
};
}
/**
* Create standardized business event metadata
*/
export function createBusinessEvent(
type: string,
action: string,
options?: {
entity?: string;
result?: 'success' | 'failure' | 'partial';
amount?: number;
symbol?: string;
[key: string]: any;
}
): LogMetadata {
return {
business: {
type,
action,
...options
},
type: 'business_event'
};
}
/**
* Create standardized security event metadata
*/
export function createSecurityEvent(
type: 'authentication' | 'authorization' | 'access' | 'vulnerability',
options?: {
user?: string;
resource?: string;
action?: string;
result?: 'success' | 'failure';
ip?: string;
severity?: 'low' | 'medium' | 'high' | 'critical';
[key: string]: any;
}
): LogMetadata {
return {
security: {
type,
...options
},
type: 'security_event'
};
}
/**
* Mask sensitive data in strings
*/
export function maskSensitiveData(str: string): string {
// Credit card numbers
str = str.replace(/\b\d{4}[\s-]?\d{4}[\s-]?\d{4}[\s-]?\d{4}\b/g, '****-****-****-****');
// Email addresses
str = str.replace(/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b/g, '***@***.***');
// API keys (common patterns)
str = str.replace(/\b[A-Za-z0-9]{32,}\b/g, '[API_KEY]');
// JWT tokens
str = str.replace(/eyJ[A-Za-z0-9_-]*\.[A-Za-z0-9_-]*\.[A-Za-z0-9_-]*/g, '[JWT_TOKEN]');
return str;
}
/**
* Calculate log entry size for batching
*/
export function calculateLogSize(entry: any): number {
return JSON.stringify(entry).length;
}
/**
* Throttle logging to prevent spam
*/
export class LogThrottle {
private counters = new Map<string, { count: number; lastReset: number }>();
private readonly maxLogs: number;
private readonly windowMs: number;
constructor(maxLogs = 100, windowMs = 60000) {
this.maxLogs = maxLogs;
this.windowMs = windowMs;
}
shouldLog(key: string): boolean {
const now = Date.now();
const counter = this.counters.get(key);
if (!counter || now - counter.lastReset > this.windowMs) {
this.counters.set(key, { count: 1, lastReset: now });
return true;
}
if (counter.count >= this.maxLogs) {
return false;
}
counter.count++;
return true;
}
reset(key?: string): void {
if (key) {
this.counters.delete(key);
} else {
this.counters.clear();
}
}
}