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package main
import (
"os"
"time"
"github.com/kataras/iris"
)
// get a filename based on the date, file logs works that way the most times
// but these are just a sugar.
func todayFilename() string {
today := time.Now().Format("Jan 02 2006")
return today + ".txt"
}
func newLogFile() *os.File {
filename := todayFilename()
// open an output file, this will append to the today's file if server restarted.
f, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
if err != nil {
panic(err)
}
return f
}
func main() {
f := newLogFile()
defer f.Close()
app := iris.New()
// attach the file as logger, remember, iris' app logger is just an io.Writer.
app.Logger().SetOutput(newLogFile())
app.Get("/", func(ctx iris.Context) {
// for the sake of simplicity, in order see the logs at the ./_today_.txt
ctx.Application().Logger().Info("Request path: " + ctx.Path())
ctx.Writef("hello")
})
// navigate to http://localhost:8080
// and open the ./logs.txt file
if err := app.Run(iris.Addr(":8080"), iris.WithoutBanner); err != nil {
if err != iris.ErrServerClosed {
app.Logger().Warn("Shutdown with error: " + err.Error())
}
}
}