Logger(日志) 中间件
Logger 中间件记录了每一个请求的信息。
用法
e.Use(middleware.Logger())
输出样例
{"time":"2017-01-12T08:58:07.372015644-08:00","remote_ip":"::1","host":"localhost:1323","method":"GET","uri":"/","status":200, "latency":14743,"latency_human":"14.743µs","bytes_in":0,"bytes_out":2}
自定义配置
用法
e.Use(middleware.LoggerWithConfig(middleware.LoggerConfig{
Format: "method=${method}, uri=${uri}, status=${status}\n",
}))
输出样例
method=GET, uri=/, status=200
配置
LoggerConfig struct {
// Skipper 定义了一个跳过中间件的函数.
Skipper Skipper
// 日志的格式可以使用下面的标签定义。:
//
// - time_unix
// - time_unix_nano
// - time_rfc3339
// - time_rfc3339_nano
// - id (Request ID - Not implemented)
// - remote_ip
// - uri
// - host
// - method
// - path
// - referer
// - user_agent
// - status
// - latency (In microseconds)
// - latency_human (Human readable)
// - bytes_in (Bytes received)
// - bytes_out (Bytes sent)
// - header:<name>
// - query:<name>
// - form:<name>
//
// 例如 "${remote_ip} ${status}"
//
// 可选。默认值是 DefaultLoggerConfig.Format.
Format string `json:"format"`
// Output 是记录日志的位置。
// 可选。默认值是 os.Stdout.
Output io.Writer
}
默认配置
DefaultLoggerConfig = LoggerConfig{
Skipper: defaultSkipper,
Format: `{"time":"${time_rfc3339_nano}","remote_ip":"${remote_ip}","host":"${host}",` +
`"method":"${method}","uri":"${uri}","status":${status}, "latency":${latency},` +
`"latency_human":"${latency_human}","bytes_in":${bytes_in},` +
`"bytes_out":${bytes_out}}` + "\n",
Output: os.Stdout
}
更多细节见:laily.net