koa-logger

Development style logger middleware for koa.

<-- GET /
--> GET / 200 835ms 746b
<-- GET /
--> GET / 200 960ms 1.9kb
<-- GET /users
--> GET /users 200 357ms 922b
<-- GET /users?page=2
--> GET /users?page=2 200 466ms 4.66kb

Installation

$ npm install koa-logger

Example

var logger = require('koa-logger')
var koa = require('koa')

var app = koa()
app.use(logger())

It is possible to specify your own logging method (instead of just logging to the console). E.g.:

var logger = require('koa-logger')
var koa = require('koa')

var app = koa()
app.use(logger({logger: other_logger}))

function other_logger() {
  // Append the current date to each logged item
  var str1 = new Date() + " " + arguments[0]

  var other_strings = Array.prototype.slice.call(arguments, 1)

  // See note 2 below
  var message = util.format.apply([str1].concat(other_strings))
  console.log(message)
}

Notes

1. Recommended that you .use() this middleware near the top to "wrap" all subsequent middleware.

2. If the logger option is used, note that the first argument passed to the logger function will be a printf-like string of placeholders, so arguments must be passed into util.format (or console.log, which automatically formats its arguments). See util.format docs for more information

3. Arguments passed to the logger option, if used, will contain ascii color codes. To strip out these codes (e.g. if you're logging to a file), you can use chalk.stripCodes(). See chalk docs for more information.

License

MIT