package main

import (
	"github.com/valyala/fasthttp"
)

func requestHandler(ctx *fasthttp.RequestCtx) {
	switch string(ctx.Path()) {
	case "/":
		ctx.Success("application/json", []byte("Welcome!"))
	default:
		ctx.Error("Unsupported path", fasthttp.StatusNotFound)
	}
}

func main() {
	// pass plain function to fasthttp
	fasthttp.ListenAndServe(":8080", requestHandler)
}