transport that writes log entries to a file with optional log rotation. supports automatic file rotation based on size and maintains a configurable number of backup files.
const transport = new FileTransport({ filename: 'app.log' });logger.addTransport(transport); Copy
const transport = new FileTransport({ filename: 'app.log' });logger.addTransport(transport);
const transport = new FileTransport({ filename: 'app.log', maxSize: 10 * 1024 * 1024, // 10mb maxFiles: 5 // keep 5 backup files}); Copy
const transport = new FileTransport({ filename: 'app.log', maxSize: 10 * 1024 * 1024, // 10mb maxFiles: 5 // keep 5 backup files});
const transport = new FileTransport({ filename: 'app.log', formatter: new ConsoleFormatter({ colourize: false })}); Copy
const transport = new FileTransport({ filename: 'app.log', formatter: new ConsoleFormatter({ colourize: false })});
creates a new file transport. automatically creates the log file if it doesn't exist.
configuration options for the file transport
writes a log entry to the file. automatically handles file rotation if maxSize is configured.
the log entry to write
const entry = { level: LogLevel.INFO, message: 'app started', timestamp: new Date(), scope: ['app'], args: []};transport.log(entry); Copy
const entry = { level: LogLevel.INFO, message: 'app started', timestamp: new Date(), scope: ['app'], args: []};transport.log(entry);
transport that writes log entries to a file with optional log rotation. supports automatic file rotation based on size and maintains a configurable number of backup files.
Example: basic usage
Example: with rotation
Example: with custom formatter