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echo/middleware/logger.go

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package middleware
import (
"log"
"time"
"github.com/labstack/bolt"
"labstack.com/common/utils"
)
func Logger() bolt.HandlerFunc {
return func(c *bolt.Context) {
start := time.Now()
c.Next()
end := time.Now()
color := utils.Green
m := c.Request.Method
p := c.Request.URL.Path
s := c.Response.Status()
switch {
case s >= 500:
color = utils.Red
case s >= 400:
color = utils.Yellow
case s >= 300:
color = utils.Cyan
}
log.Printf("%s %s %s %s", m, p, color(s), end.Sub(start))
}
}