the code

cmd/main.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"fmt"
+	"github.com/valyala/fasthttp"
+	"log"
+)
+
+func main() {
+	if err := fasthttp.ListenAndServe(":8080", requestHandler); err != nil {
+		log.Fatalf("Error in ListenAndServe: %v", err)
+	}
+}
+
+func requestHandler(ctx *fasthttp.RequestCtx) {
+	fmt.Fprintf(ctx, "Hello, world!\n\n")
+
+	fmt.Fprintf(ctx, "Request method is %q\n", ctx.Method())
+	fmt.Fprintf(ctx, "RequestURI is %q\n", ctx.RequestURI())
+	fmt.Fprintf(ctx, "Requested path is %q\n", ctx.Path())
+	fmt.Fprintf(ctx, "Host is %q\n", ctx.Host())
+	fmt.Fprintf(ctx, "Query string is %q\n", ctx.QueryArgs())
+	fmt.Fprintf(ctx, "User-Agent is %q\n", ctx.UserAgent())
+	fmt.Fprintf(ctx, "Connection has been established at %s\n", ctx.ConnTime())
+	fmt.Fprintf(ctx, "Request has been started at %s\n", ctx.Time())
+	fmt.Fprintf(ctx, "Serial request number for the current connection is %d\n", ctx.ConnRequestNum())
+	fmt.Fprintf(ctx, "Your ip is %q\n\n", ctx.RemoteIP())
+
+	fmt.Fprintf(ctx, "Raw request is:\n---CUT---\n%s\n---CUT---", &ctx.Request)
+
+	ctx.SetContentType("text/plain; charset=utf8")
+
+	ctx.Response.Header.Set("X-My-Header", "my-header-value")
+
+	var c fasthttp.Cookie
+	c.SetKey("cookie-name")
+	c.SetValue("cookie-value")
+	ctx.Response.Header.SetCookie(&c)
+}