expressjs/morgan
Morgan
Morgan 是一个 Node.js HTTP 日志中间件，旨在记录传入请求和传出响应。它捕获请求元数据和计时，以促进 API 请求审计和服务器性能监控。
该项目利用基于令牌的字符串插值和自定义日志令牌从 HTTP 对象中提取特定属性。它支持通过将格式化的日志字符串路由到各种可写流来实现多目标日志记录，并采用日志输出清理来转义控制字符。
其他功能包括基于谓词的日志过滤（以有条件地省略条目）以及在收到请求时触发即时日志计时的能力。
Features
- HTTP Traffic Logging - Provides a dedicated middleware for recording incoming and outgoing HTTP traffic in Node.js applications.
- Token-Based Interpolation - Uses named tokens and extractor functions to dynamically build log strings from HTTP request and response metadata.
- Request Middleware - Provides middleware to intercept the Node.js request-response cycle for metadata and timing capture.
- Application API Auditing - Captures detailed HTTP metadata to create an audit trail of all API interactions.
- Request Logging - Records details of incoming and outgoing HTTP traffic for diagnostic and monitoring purposes.
- Web Server Performance Monitoring - Tracks response times and status codes to identify slow endpoints and frequent server errors.
- Log Token Extractors - Provides custom tokens that extract specific metadata from requests and responses to inject into log entries.
- Log String Sanitizers - Sanitizes log output by escaping control characters to prevent log injection attacks.
- Character Escaping - Escapes non-printable control characters in request data to prevent log injection attacks.
- Log Entry Filters - Allows conditionally omitting log entries based on custom boolean predicate functions.
- Writable Stream Integration - Routes formatted log messages to any Node.js writable stream, including the console and file system.
- Log Event Filters - Prevents specific requests from being logged based on custom conditions, such as HTTP status codes.
- Application Log Redirection - Manages application logs by routing HTTP request data to various output destinations and filtering noise.
- Application Log Routing - Directs log entries to specific writable streams like the console or rotating files.
- Request Timing Logs - Supports immediate log writing upon request receipt to capture timing without waiting for the response.
- Database and Backend - HTTP request logger middleware for Node.js applications.
- Loggers, Errors & Reporting - Listed in the “Loggers, Errors & Reporting” section of the Awesome Micro awesome list.
