Logger Middleware
Logger middleware logs the information about each HTTP request.
Usage
e.Use(middleware.Logger())
Sample Output
{"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}
Custom Configuration
Usage
e.Use(middleware.LoggerWithConfig(middleware.LoggerConfig{
Format: "method=${method}, uri=${uri}, status=${status}\n",
}))
Example above uses a Format which logs request method and request URI.
Sample Output
method=GET, uri=/, status=200
Configuration
LoggerConfig struct {
// Skipper defines a function to skip middleware.
Skipper Skipper
// Tags to constructed the logger format.
//
// - time_unix
// - time_unix_nano
// - time_rfc3339
// - time_rfc3339_nano
// - id (Request ID)
// - remote_ip
// - uri
// - host
// - method
// - path
// - referer
// - user_agent
// - status
// - latency (In nanoseconds)
// - latency_human (Human readable)
// - bytes_in (Bytes received)
// - bytes_out (Bytes sent)
// - header:<NAME>
// - query:<NAME>
// - form:<NAME>
// - cookie:<NAME>
//
// Example "${remote_ip} ${status}"
//
// Optional. Default value DefaultLoggerConfig.Format.
Format string `json:"format"`
// Output is a writer where logs are written.
// Optional. Default value os.Stdout.
Output io.Writer
}
Default Configuration
DefaultLoggerConfig = LoggerConfig{
Skipper: DefaultSkipper,
Format: `{"time":"${time_rfc3339_nano}","id":"${id}","remote_ip":"${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
}