gin/logger.go at benchmarks · dominictobias/gin

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package gin

import (

"fmt"

"log"

"os"

"time"

)

func ErrorLogger() HandlerFunc {

return func(c *Context) {

c.Next()

if len(c.Errors) > 0 {

// -1 status code = do not change current one

c.JSON(-1, c.Errors)

}

var (

green = string([]byte{27, 91, 57, 55, 59, 52, 50, 109})

white = string([]byte{27, 91, 57, 48, 59, 52, 55, 109})

yellow = string([]byte{27, 91, 57, 55, 59, 52, 51, 109})

red = string([]byte{27, 91, 57, 55, 59, 52, 49, 109})

reset = string([]byte{27, 91, 48, 109})

)

func Logger() HandlerFunc {

logger := log.New(os.Stdout, "", 0)

return func(c *Context) {

// Start timer

start := time.Now()

// Process request

c.Next()

var color string

code := c.Writer.Status()

switch {

case code >= 200 && code <= 299:

color = green

case code >= 300 && code <= 399:

color = white

case code >= 400 && code <= 499:

color = yellow

default:

color = red

}

latency := time.Since(start)

logger.Printf("[GIN] %v |%s %3d %s| %12v | %3s %s\n",

time.Now().Format("2006/01/02 - 15:04:05"),

color, c.Writer.Status(), reset,

latency,

c.Req.Method, c.Req.URL.Path,

)

// Calculate resolution time

if len(c.Errors) > 0 {

fmt.Println(c.Errors.String())

}

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