implemented http server

internal/string_helper/StringBuilder.go

@@ -4,6 +4,7 @@ import (
 	"io"
 	"slices"
 	"strconv"
+	"time"
 	"unicode/utf8"
 )
 
@@ -65,6 +66,11 @@ func (b *StringBuilder) AddBool(v bool) *StringBuilder {
 	return b
 }
 
+func (b *StringBuilder) AddT(v time.Time, fmt string) *StringBuilder {
+	b.Buf = v.AppendFormat(b.Buf, fmt)
+	return b
+}
+
 // numberBase: 2 <= base <= 36
 func (b *StringBuilder) AddIExt(v int64, numberBase int) *StringBuilder {
 	b.Buf = strconv.AppendInt(b.Buf, v, numberBase)

internal/string_helper/size.go

@@ -0,0 +1,26 @@
+package string_helper
+
+import (
+	"math"
+	"strconv"
+	"strings"
+)
+
+// Format byte size to kilobytes, megabytes, etc.
+//
+//	1023       -> "1023"
+//	1048576    -> "1M"
+//	4778151117 -> "4.45G"
+//	1023*1024  -> "1M"
+func HumanBytes(n int64) string {
+	units := []string{"B", "KB", "MB", "GB", "TB", "PB", "EB"}
+	v := float64(n)
+	i := 0
+	for i < len(units)-1 && math.Round(math.Abs(v)*100)/100 >= 1024 {
+		v /= 1024
+		i++
+	}
+	s := strconv.FormatFloat(v, 'f', 2, 64)
+	s = strings.TrimRight(strings.TrimRight(s, "0"), ".")
+	return s + units[i]
+}