node.jsexpress-winston errorLogger 跳过不起作用

Question

我使用node.js 和express-winston 进行日志记录，如下所示:

var express = require('express');
var app = express();

var winston = require('winston');
var expressWinston = require('express-winston');

var routes = require('./routes/index');

app.use("/", routes);

app.use(
    expressWinston.errorLogger({
        transports: [
            new winston.transports.DailyRotateFile({
                name: 'file',
                datePattern: '_dd-MM-yyyy.log',
                colorize: true,
                json: true,
                filename: './logs/errors/error_log',
                maxsize: 50 * 1024 * 1024,
                maxFiles: 10,
                zippedArchive: true
            }),
            new winston.transports.Console({
                json: true,
                colorize: true
            })
        ],
        skip: function(req, res) {
            return true;
        }
    })
);

请注意，我正在使用skip函数并返回true(用于测试目的)，以便跳过所有错误日志记录，如下所示:express-winston options

但它不起作用，有什么想法吗？

Answer 1

根据 README.md 发送响应后，将调用 skip 函数:

A function to determine if logging is skipped, defaults to returning false. Called after response has already been sent.

对于您的示例，您希望使用 ignoreRoute 选项，对于您的情况，该选项将是一个返回 true 的函数。

A function to determine if logging is skipped, defaults to returning false. Called before any later middleware.

app.use(
  expressWinston.errorLogger({
    transports: [
        new winston.transports.DailyRotateFile({
            name: 'file',
            datePattern: '_dd-MM-yyyy.log',
            colorize: true,
            json: true,
            filename: './logs/errors/error_log',
            maxsize: 50 * 1024 * 1024,
            maxFiles: 10,
            zippedArchive: true
        }),
        new winston.transports.Console({
            json: true,
            colorize: true
        })
    ],
          v------------------------------ use `ignoreRoute` instead of `skip`
    ignoreRoute: function(req, res) {
        return true;
    }
  })
);