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main.go
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main.go
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// 鈿★笍 Fiber is an Express inspired web framework written in Go with 鈽曪笍
// 馃 Github Repository: https://github.com/gofiber/fiber
// 馃搶 API Documentation: https://docs.gofiber.io
package main
import (
"fmt"
"log"
"time"
"github.com/gofiber/fiber/v2"
)
func main() {
// Fiber instance
app := fiber.New()
// Custom Timer middleware
app.Use(Timer())
// Routes
app.Get("/", func(c *fiber.Ctx) error {
time.Sleep(2 * time.Second) // Sleep 2 seconds
return c.SendString("That took a while 馃槥")
})
// Start server
log.Fatal(app.Listen(":3000"))
}
// Timer will measure how long it takes before a response is returned
func Timer() fiber.Handler {
return func(c *fiber.Ctx) error {
// start timer
start := time.Now()
// next routes
err := c.Next()
// stop timer
stop := time.Now()
// Do something with response
c.Append("Server-Timing", fmt.Sprintf("app;dur=%v", stop.Sub(start).String()))
// return stack error if exist
return err
}
}