Morgan Logger + Express.js：编写文件并在控制台中显示 [英] Morgan Logger + Express.js: writing file AND showing in console

问题描述

我试图使用Morgan与Express.js来编写一个日志文件，同时在控制台上显示我的日志。
我使用这个代码：

  var logger = require（'morgan'）; 
 var accessLogStream = fs.createWriteStream（'./ access.log'，{flags：'a'}）; 
 app.use（logger（dev，{stream：accessLogStream}））; 
  

但是这样我只得到控制台日志，我的access.log文件保持为空。 >

如果我这样做（不指定dev）：

  var logger = require（'morgan'）; 
 var accessLogStream = fs.createWriteStream（'./ access.log'，{flags：'a'}）; 
 app.use（logger（{stream：accessLogStream}））; 
  

我收到我的文件上的日志，但不在控制台上。

如何获取控制台上的日志和文件？

提前谢谢！

编辑：
此时我发现了这个解决方案：

 code> app.use（logger（{format：[：date [clf]]：method：url：status：response-time ms，stream：{
 write：function（str）
 {
 accessLogStream.write（str）; 
 console.log（str）; 
} 
}}））; 
  

但如果你有一个更好的一个...欢迎你！

解决方案

从 github

  var logger = require（'morgan'）; 
 
 app.use（logger（'common'，{
 stream：fs.createWriteStream（'./ access.log'，{flags：'a'}）
} ））; 
 app.use（logger（'dev'））; 
  

I'm trying to use Morgan with Express.js to write a log file while showing my logs on the console as well. I'm using this code:

var logger = require('morgan');
var accessLogStream = fs.createWriteStream('./access.log', {flags: 'a'});
app.use(logger("dev",{stream: accessLogStream}));

But in this way I only get console logs and my access.log file remains empty.

If I do this instead (not specifying "dev"):

var logger = require('morgan');
var accessLogStream = fs.createWriteStream('./access.log', {flags: 'a'});
app.use(logger({stream: accessLogStream}));

I get the logs on my file but not on the console.

How can I obtain both the log on the console AND on the file?

Thank you in advance!

EDIT: at this moment I've found this solution:

app.use(logger({format:"[:date[clf]] :method :url :status :response-time ms",stream: {
    write: function(str)
    {
        accessLogStream.write(str);
        console.log(str);
    }
}}));

But if you have a better one... you're welcome!

解决方案

From github

var logger = require('morgan');

app.use(logger('common', {
    stream: fs.createWriteStream('./access.log', {flags: 'a'})
}));
app.use(logger('dev'));

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