add download method

.gitignore

@@ -0,0 +1,4 @@
+.idea/
+*/.DS_Store
+.vscode
+go.sum

client.go

@@ -155,42 +155,57 @@ func (c *Client) Use(middlewares ...MiddlewareFunc) *Client {
 	return c
 }
 
+// Download download a file from the network address to the local.
+func (c *Client) Download(url, dir string, filename ...string) (string, error) {
+	return NewDownload(c).Download(url, dir, filename...)
+}
+
+// Request send an http request.
 func (c *Client) Request(method, url string, data ...interface{}) (*Response, error) {
 	return NewRequest(c).request(method, url, data...)
 }
 
+// Get send an http request use get method.
 func (c *Client) Get(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodGet, url, data...)
 }
 
+// Post send an http request use post method.
 func (c *Client) Post(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodPost, url, data...)
 }
 
+// Put send an http request use put method.
 func (c *Client) Put(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodPut, url, data...)
 }
 
+// Patch send an http request use patch method.
 func (c *Client) Patch(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodPatch, url, data...)
 }
 
+// Delete send an http request use patch method.
 func (c *Client) Delete(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodDelete, url, data...)
 }
 
+// Head send an http request use head method.
 func (c *Client) Head(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodHead, url, data...)
 }
 
+// Options send an http request use options method.
 func (c *Client) Options(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodOptions, url, data...)
 }
 
+// Connect send an http request use connect method.
 func (c *Client) Connect(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodConnect, url, data...)
 }
 
+// Trace send an http request use trace method.
 func (c *Client) Trace(url string, data ...interface{}) (*Response, error) {
 	return c.Request(MethodTrace, url, data...)
 }

client_test.go

@@ -59,23 +59,26 @@ func TestClient_Post(t *testing.T) {
 		Sort: 0,
 	}
 	
-	//data := map[string]interface{}{
-	//	"id":   1,
-	//	"pid":  0,
-	//	"code": "110000",
-	//	"name": "北京市",
-	//	"sort": 0,
-	//}
-	
 	if resp, err := client.Put("/backend/region/update-region", data); err != nil {
 		t.Error(err)
 		return
 	} else {
 		t.Log(resp.Response.Status)
 		t.Log(resp.Response.Header)
-		t.Log(resp.Bytes())
-		t.Log(resp.String())
+		t.Log(resp.ReadBytes())
+		t.Log(resp.ReadString())
 		t.Log(resp.GetHeaders())
 		t.Log(resp.GetCookies())
 	}
 }
+
+func TestClient_Download(t *testing.T) {
+	url := "https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png"
+	
+	if path, err := http.NewClient().Download(url, "./"); err != nil {
+		t.Error(err)
+		return
+	} else {
+		t.Log(path)
+	}
+}

download.go

@@ -0,0 +1,87 @@
+/**
+ * @Author: fuxiao
+ * @Email: 576101059@qq.com
+ * @Date: 2021/8/26 1:59 下午
+ * @Desc: TODO
+ */
+
+package http
+
+import (
+	"os"
+	"strings"
+	
+	"github.com/dobyte/http/internal"
+)
+
+var contentTypeToFileSuffix = map[string]string{
+	"application/x-001":              ".001",
+	"text/h323":                      ".323",
+	"drawing/907":                    ".907",
+	"audio/x-mei-aac":                ".acp",
+	"audio/aiff":                     ".aif",
+	"text/asa":                       ".asa",
+	"text/asp":                       ".asp",
+	"audio/basic":                    ".au",
+	"application/vnd.adobe.workflow": ".awf",
+	"application/x-bmp":              ".bmp",
+	"application/x-c4t":              ".c4t",
+	"application/x-cals":             ".cal",
+	"application/x-netcdf":           ".cdf",
+	"application/x-cel":              ".cel",
+	"application/x-g4":               ".cg4",
+	"application/x-cit":              ".cit",
+	"text/xml":                       ".cml",
+	"application/x-cmx":              ".cmx",
+	"application/pkix-crl":           ".crl",
+	"application/x-csi":              ".csi",
+	"application/x-cut":              ".cut",
+	"application/x-dbm":              ".dbm",
+}
+
+type Download struct {
+	request *Request
+}
+
+func NewDownload(c *Client) *Download {
+	return &Download{
+		request: NewRequest(c),
+	}
+}
+
+// Download download a file from the network address to the local.
+func (d *Download) Download(url, dir string, filename ...string) (string, error) {
+	resp, err := d.request.request(MethodGet, url)
+	if err != nil {
+		return "", err
+	}
+	
+	var path string
+	
+	if len(filename) > 0 {
+		path = strings.TrimRight(dir, string(os.PathSeparator)) + string(os.PathSeparator) + filename[0]
+	} else {
+		path = d.genFilePath(resp, dir)
+	}
+	
+	if err = internal.SaveToFile(path, resp.ReadBytes()); err != nil {
+		return "", err
+	}
+	
+	return path, nil
+}
+
+// genFilePath generate file path based on response content type
+func (d *Download) genFilePath(resp *Response, dir string) string {
+	path := strings.TrimRight(dir, string(os.PathSeparator)) + string(os.PathSeparator) + internal.RandStr(16)
+	
+	if suffix := internal.GetFileType(resp.ReadBytes()); suffix != "" {
+		path += "." + suffix
+	}
+	
+	if internal.Exists(path) {
+		return d.genFilePath(resp, dir)
+	}
+	
+	return path
+}

internal/conv.go

@@ -0,0 +1,234 @@
+/**
+ * @Author: fuxiao
+ * @Email: 576101059@qq.com
+ * @Date: 2021/8/26 5:00 下午
+ * @Desc: TODO
+ */
+
+package internal
+
+import (
+	"encoding"
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"strconv"
+	"time"
+	"unsafe"
+)
+
+type stringInterface interface {
+	String() string
+}
+
+type errorInterface interface {
+	Error() string
+}
+
+func String(any interface{}) string {
+	switch v := any.(type) {
+	case nil:
+		return ""
+	case string:
+		return v
+	case int:
+		return strconv.Itoa(v)
+	case int8:
+		return strconv.Itoa(int(v))
+	case int16:
+		return strconv.Itoa(int(v))
+	case int32:
+		return strconv.Itoa(int(v))
+	case int64:
+		return strconv.FormatInt(v, 10)
+	case uint:
+		return strconv.FormatUint(uint64(v), 10)
+	case uint8:
+		return strconv.FormatUint(uint64(v), 10)
+	case uint16:
+		return strconv.FormatUint(uint64(v), 10)
+	case uint64:
+		return strconv.FormatUint(v, 10)
+	case float32:
+		return strconv.FormatFloat(float64(v), 'f', -1, 32)
+	case float64:
+		return strconv.FormatFloat(v, 'f', -1, 64)
+	case bool:
+		return strconv.FormatBool(v)
+	case []byte:
+		return string(v)
+	case time.Time:
+		return v.String()
+	case *time.Time:
+		if v == nil {
+			return ""
+		}
+		return v.String()
+	default:
+		if v == nil {
+			return ""
+		}
+		
+		if i, ok := v.(stringInterface); ok {
+			return i.String()
+		}
+		
+		if i, ok := v.(errorInterface); ok {
+			return i.Error()
+		}
+		
+		var (
+			rv   = reflect.ValueOf(v)
+			kind = rv.Kind()
+		)
+		
+		switch kind {
+		case reflect.Chan,
+			reflect.Map,
+			reflect.Slice,
+			reflect.Func,
+			reflect.Ptr,
+			reflect.Interface,
+			reflect.UnsafePointer:
+			if rv.IsNil() {
+				return ""
+			}
+		case reflect.String:
+			return rv.String()
+		}
+		
+		if kind == reflect.Ptr {
+			return String(rv.Elem().Interface())
+		}
+		
+		if b, e := json.Marshal(v); e != nil {
+			return fmt.Sprint(v)
+		} else {
+			return string(b)
+		}
+	}
+}
+
+func Scan(b []byte, any interface{}) error {
+	switch v := any.(type) {
+	case nil:
+		return fmt.Errorf("cache: Scan(nil)")
+	case *string:
+		*v = String(b)
+		return nil
+	case *[]byte:
+		*v = b
+		return nil
+	case *int:
+		var err error
+		*v, err = strconv.Atoi(String(b))
+		return err
+	case *int8:
+		n, err := strconv.ParseInt(String(b), 10, 8)
+		if err != nil {
+			return err
+		}
+		*v = int8(n)
+		return nil
+	case *int16:
+		n, err := strconv.ParseInt(String(b), 10, 16)
+		if err != nil {
+			return err
+		}
+		*v = int16(n)
+		return nil
+	case *int32:
+		n, err := strconv.ParseInt(String(b), 10, 32)
+		if err != nil {
+			return err
+		}
+		*v = int32(n)
+		return nil
+	case *int64:
+		n, err := strconv.ParseInt(String(b), 10, 64)
+		if err != nil {
+			return err
+		}
+		*v = n
+		return nil
+	case *uint:
+		n, err := strconv.ParseUint(String(b), 10, 64)
+		if err != nil {
+			return err
+		}
+		*v = uint(n)
+		return nil
+	case *uint8:
+		n, err := strconv.ParseUint(String(b), 10, 8)
+		if err != nil {
+			return err
+		}
+		*v = uint8(n)
+		return nil
+	case *uint16:
+		n, err := strconv.ParseUint(String(b), 10, 16)
+		if err != nil {
+			return err
+		}
+		*v = uint16(n)
+		return nil
+	case *uint32:
+		n, err := strconv.ParseUint(String(b), 10, 32)
+		if err != nil {
+			return err
+		}
+		*v = uint32(n)
+		return nil
+	case *uint64:
+		n, err := strconv.ParseUint(String(b), 10, 64)
+		if err != nil {
+			return err
+		}
+		*v = n
+		return nil
+	case *float32:
+		n, err := strconv.ParseFloat(String(b), 32)
+		if err != nil {
+			return err
+		}
+		*v = float32(n)
+		return err
+	case *float64:
+		var err error
+		*v, err = strconv.ParseFloat(String(b), 64)
+		return err
+	case *bool:
+		*v = len(b) == 1 && b[0] == '1'
+		return nil
+	case *time.Time:
+		var err error
+		*v, err = time.Parse(time.RFC3339Nano, String(b))
+		return err
+	case encoding.BinaryUnmarshaler:
+		return v.UnmarshalBinary(b)
+	default:
+		var (
+			rv   = reflect.ValueOf(v)
+			kind = rv.Kind()
+		)
+		
+		if kind != reflect.Ptr {
+			return fmt.Errorf("can't unmarshal %T", v)
+		}
+		
+		switch kind = rv.Elem().Kind(); kind {
+		case reflect.Array, reflect.Slice, reflect.Map, reflect.Struct:
+			return json.Unmarshal(b, v)
+		}
+		
+		return fmt.Errorf("can't unmarshal %T", v)
+	}
+}
+
+func UnsafeStringToBytes(s string) []byte {
+	return *(*[]byte)(unsafe.Pointer(&s))
+}
+
+func UnsafeBytesToString(b []byte) string {
+	return *(*string)(unsafe.Pointer(&b))
+}

internal/file.go

@@ -0,0 +1,66 @@
+/**
+ * @Author: fuxiao
+ * @Email: 576101059@qq.com
+ * @Date: 2021/8/26 4:59 下午
+ * @Desc: TODO
+ */
+
+package internal
+
+import (
+	"io"
+	"os"
+	"path/filepath"
+)
+
+// Exists check if the file or path exists.
+func Exists(path string) bool {
+	if stat, err := os.Stat(path); stat != nil && !os.IsNotExist(err) {
+		return true
+	}
+	return false
+}
+
+// SaveToFile save data to file.
+func SaveToFile(path string, data []byte) error {
+	dir := filepath.Dir(path)
+	if !Exists(dir) {
+		if err := MakeDir(dir); err != nil {
+			return err
+		}
+	}
+	
+	f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, os.FileMode(0666))
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	
+	if n, err := f.Write(data); err != nil {
+		return err
+	} else if n < len(data) {
+		return io.ErrShortWrite
+	}
+	
+	return nil
+}
+
+// MakeDir create directories recursively.
+func MakeDir(dir string) error {
+	if err := os.MkdirAll(dir, os.ModePerm); err != nil {
+		return err
+	}
+	return nil
+}
+
+// RealPath get the real path.
+func RealPath(path string) string {
+	p, err := filepath.Abs(path)
+	if err != nil {
+		return ""
+	}
+	if !Exists(p) {
+		return ""
+	}
+	return p
+}

internal/rand.go

@@ -0,0 +1,28 @@
+/**
+ * @Author: fuxiao
+ * @Email: 576101059@qq.com
+ * @Date: 2021/8/26 4:51 下午
+ * @Desc: TODO
+ */
+
+package internal
+
+import (
+	"math/rand"
+	"time"
+)
+
+var seedStr = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+// RandStr generate a string of specified length.
+func RandStr(length int) (lastStr string) {
+	rand.Seed(time.Now().UnixNano())
+	
+	pos, seedLen := 0, len(seedStr)
+	for i := 0; i < length; i++ {
+		pos = rand.Intn(seedLen)
+		lastStr += seedStr[pos : pos+1]
+	}
+	
+	return lastStr
+}

internal/stream.go

@@ -0,0 +1,120 @@
+/**
+ * @Author: fuxiao
+ * @Email: 576101059@qq.com
+ * @Date: 2021/8/26 6:21 下午
+ * @Desc: TODO
+ */
+
+package internal
+
+import (
+	"bytes"
+	"encoding/hex"
+	"strconv"
+	"strings"
+	"sync"
+)
+
+var fileTypeMap sync.Map
+
+func init() {
+	fileTypeMap.Store("ffd8ffe000104a464946", "jpg")
+	fileTypeMap.Store("89504e470d0a1a0a0000", "png")
+	fileTypeMap.Store("47494638396126026f01", "gif")
+	fileTypeMap.Store("49492a00227105008037", "tif")
+	fileTypeMap.Store("424d228c010000000000", "bmp")
+	fileTypeMap.Store("424d8240090000000000", "bmp")
+	fileTypeMap.Store("424d8e1b030000000000", "bmp")
+	fileTypeMap.Store("41433130313500000000", "dwg")
+	fileTypeMap.Store("3c21444f435459504520", "html")
+	fileTypeMap.Store("3c68746d6c3e0", "html")
+	fileTypeMap.Store("3c21646f637479706520", "htm")
+	fileTypeMap.Store("48544d4c207b0d0a0942", "css")
+	fileTypeMap.Store("696b2e71623d696b2e71", "js")
+	fileTypeMap.Store("7b5c727466315c616e73", "rtf")
+	fileTypeMap.Store("38425053000100000000", "psd")
+	fileTypeMap.Store("46726f6d3a203d3f6762", "eml")
+	fileTypeMap.Store("d0cf11e0a1b11ae10000", "doc")
+	fileTypeMap.Store("d0cf11e0a1b11ae10000", "vsd")
+	fileTypeMap.Store("5374616E64617264204A", "mdb")
+	fileTypeMap.Store("252150532D41646F6265", "ps")
+	fileTypeMap.Store("255044462d312e350d0a", "pdf")
+	fileTypeMap.Store("2e524d46000000120001", "rmvb")
+	fileTypeMap.Store("464c5601050000000900", "flv")
+	fileTypeMap.Store("00000020667479706d70", "mp4")
+	fileTypeMap.Store("49443303000000002176", "mp3")
+	fileTypeMap.Store("000001ba210001000180", "mpg")
+	fileTypeMap.Store("3026b2758e66cf11a6d9", "wmv")
+	fileTypeMap.Store("52494646e27807005741", "wav")
+	fileTypeMap.Store("52494646d07d60074156", "avi")
+	fileTypeMap.Store("4d546864000000060001", "mid")
+	fileTypeMap.Store("504b0304140000000800", "zip")
+	fileTypeMap.Store("526172211a0700cf9073", "rar")
+	fileTypeMap.Store("235468697320636f6e66", "ini")
+	fileTypeMap.Store("504b03040a0000000000", "jar")
+	fileTypeMap.Store("4d5a9000030000000400", "exe")
+	fileTypeMap.Store("3c25402070616765206c", "jsp")
+	fileTypeMap.Store("4d616e69666573742d56", "mf")
+	fileTypeMap.Store("3c3f786d6c2076657273", "xml")
+	fileTypeMap.Store("494e5345525420494e54", "sql")
+	fileTypeMap.Store("7061636b616765207765", "java")
+	fileTypeMap.Store("406563686f206f66660d", "bat")
+	fileTypeMap.Store("1f8b0800000000000000", "gz")
+	fileTypeMap.Store("6c6f67346a2e726f6f74", "properties")
+	fileTypeMap.Store("cafebabe0000002e0041", "class")
+	fileTypeMap.Store("49545346030000006000", "chm")
+	fileTypeMap.Store("04000000010000001300", "mxp")
+	fileTypeMap.Store("504b0304140006000800", "docx")
+	fileTypeMap.Store("d0cf11e0a1b11ae10000", "wps")
+	fileTypeMap.Store("6431303a637265617465", "torrent")
+	fileTypeMap.Store("6D6F6F76", "mov")
+	fileTypeMap.Store("FF575043", "wpd")
+	fileTypeMap.Store("CFAD12FEC5FD746F", "dbx")
+	fileTypeMap.Store("2142444E", "pst")
+	fileTypeMap.Store("AC9EBD8F", "qdf")
+	fileTypeMap.Store("E3828596", "pwl")
+	fileTypeMap.Store("2E7261FD", "ram")
+}
+
+// bytesToHexString get the binary of the previous result byte.
+func bytesToHexString(stream []byte) string {
+	if stream == nil || len(stream) <= 0 {
+		return ""
+	}
+	
+	var (
+		hv   string
+		res  = bytes.Buffer{}
+		temp = make([]byte, 0)
+	)
+	
+	for _, v := range stream {
+		if hv = hex.EncodeToString(append(temp, v&0xFF)); len(hv) < 2 {
+			res.WriteString(strconv.FormatInt(int64(0), 10))
+		}
+		
+		res.WriteString(hv)
+	}
+	
+	return res.String()
+}
+
+// GetFileType judge the file type based on the binary byte stream.
+func GetFileType(stream []byte) string {
+	var (
+		fileType string
+		fileCode = bytesToHexString(stream)
+	)
+	
+	fileTypeMap.Range(func(key, value interface{}) bool {
+		if strings.HasPrefix(fileCode, strings.ToLower(key.(string))) ||
+			strings.HasPrefix(key.(string), strings.ToLower(fileCode)) {
+			fileType = value.(string)
+			return false
+		}
+		
+		return true
+	})
+	
+	return fileType
+}

internal/utils.go

@@ -8,27 +8,13 @@
 package internal
 
 import (
-	"encoding"
 	"encoding/json"
-	"fmt"
 	"net/url"
-	"os"
-	"reflect"
-	"strconv"
 	"strings"
-	"time"
-	"unsafe"
 )
 
 const fileUploadingKey = "@file:"
 
-func Exists(path string) bool {
-	if stat, err := os.Stat(path); stat != nil && !os.IsNotExist(err) {
-		return true
-	}
-	return false
-}
-
 func BuildParams(params interface{}) string {
 	switch v := params.(type) {
 	case string:
@@ -86,219 +72,3 @@ func BuildParams(params interface{}) string {
 	
 	return str
 }
-
-func String(any interface{}) string {
-	switch v := any.(type) {
-	case nil:
-		return ""
-	case string:
-		return v
-	case int:
-		return strconv.Itoa(v)
-	case int8:
-		return strconv.Itoa(int(v))
-	case int16:
-		return strconv.Itoa(int(v))
-	case int32:
-		return strconv.Itoa(int(v))
-	case int64:
-		return strconv.FormatInt(v, 10)
-	case uint:
-		return strconv.FormatUint(uint64(v), 10)
-	case uint8:
-		return strconv.FormatUint(uint64(v), 10)
-	case uint16:
-		return strconv.FormatUint(uint64(v), 10)
-	case uint64:
-		return strconv.FormatUint(v, 10)
-	case float32:
-		return strconv.FormatFloat(float64(v), 'f', -1, 32)
-	case float64:
-		return strconv.FormatFloat(v, 'f', -1, 64)
-	case bool:
-		return strconv.FormatBool(v)
-	case []byte:
-		return string(v)
-	case time.Time:
-		return v.String()
-	case *time.Time:
-		if v == nil {
-			return ""
-		}
-		return v.String()
-	default:
-		if v == nil {
-			return ""
-		}
-		
-		if i, ok := v.(stringInterface); ok {
-			return i.String()
-		}
-		
-		if i, ok := v.(errorInterface); ok {
-			return i.Error()
-		}
-		
-		var (
-			rv   = reflect.ValueOf(v)
-			kind = rv.Kind()
-		)
-		
-		switch kind {
-		case reflect.Chan,
-			reflect.Map,
-			reflect.Slice,
-			reflect.Func,
-			reflect.Ptr,
-			reflect.Interface,
-			reflect.UnsafePointer:
-			if rv.IsNil() {
-				return ""
-			}
-		case reflect.String:
-			return rv.String()
-		}
-		
-		if kind == reflect.Ptr {
-			return String(rv.Elem().Interface())
-		}
-		
-		if b, e := json.Marshal(v); e != nil {
-			return fmt.Sprint(v)
-		} else {
-			return string(b)
-		}
-	}
-}
-
-func Scan(b []byte, any interface{}) error {
-	switch v := any.(type) {
-	case nil:
-		return fmt.Errorf("cache: Scan(nil)")
-	case *string:
-		*v = String(b)
-		return nil
-	case *[]byte:
-		*v = b
-		return nil
-	case *int:
-		var err error
-		*v, err = strconv.Atoi(String(b))
-		return err
-	case *int8:
-		n, err := strconv.ParseInt(String(b), 10, 8)
-		if err != nil {
-			return err
-		}
-		*v = int8(n)
-		return nil
-	case *int16:
-		n, err := strconv.ParseInt(String(b), 10, 16)
-		if err != nil {
-			return err
-		}
-		*v = int16(n)
-		return nil
-	case *int32:
-		n, err := strconv.ParseInt(String(b), 10, 32)
-		if err != nil {
-			return err
-		}
-		*v = int32(n)
-		return nil
-	case *int64:
-		n, err := strconv.ParseInt(String(b), 10, 64)
-		if err != nil {
-			return err
-		}
-		*v = n
-		return nil
-	case *uint:
-		n, err := strconv.ParseUint(String(b), 10, 64)
-		if err != nil {
-			return err
-		}
-		*v = uint(n)
-		return nil
-	case *uint8:
-		n, err := strconv.ParseUint(String(b), 10, 8)
-		if err != nil {
-			return err
-		}
-		*v = uint8(n)
-		return nil
-	case *uint16:
-		n, err := strconv.ParseUint(String(b), 10, 16)
-		if err != nil {
-			return err
-		}
-		*v = uint16(n)
-		return nil
-	case *uint32:
-		n, err := strconv.ParseUint(String(b), 10, 32)
-		if err != nil {
-			return err
-		}
-		*v = uint32(n)
-		return nil
-	case *uint64:
-		n, err := strconv.ParseUint(String(b), 10, 64)
-		if err != nil {
-			return err
-		}
-		*v = n
-		return nil
-	case *float32:
-		n, err := strconv.ParseFloat(String(b), 32)
-		if err != nil {
-			return err
-		}
-		*v = float32(n)
-		return err
-	case *float64:
-		var err error
-		*v, err = strconv.ParseFloat(String(b), 64)
-		return err
-	case *bool:
-		*v = len(b) == 1 && b[0] == '1'
-		return nil
-	case *time.Time:
-		var err error
-		*v, err = time.Parse(time.RFC3339Nano, String(b))
-		return err
-	case encoding.BinaryUnmarshaler:
-		return v.UnmarshalBinary(b)
-	default:
-		var (
-			rv   = reflect.ValueOf(v)
-			kind = rv.Kind()
-		)
-		
-		if kind != reflect.Ptr {
-			return fmt.Errorf("can't unmarshal %T", v)
-		}
-		
-		switch kind = rv.Elem().Kind(); kind {
-		case reflect.Array, reflect.Slice, reflect.Map, reflect.Struct:
-			return json.Unmarshal(b, v)
-		}
-		
-		return fmt.Errorf("can't unmarshal %T", v)
-	}
-}
-
-type stringInterface interface {
-	String() string
-}
-
-type errorInterface interface {
-	Error() string
-}
-
-func UnsafeStringToBytes(s string) []byte {
-	return *(*[]byte)(unsafe.Pointer(&s))
-}
-
-func UnsafeBytesToString(b []byte) string {
-	return *(*string)(unsafe.Pointer(&b))
-}

response.go

@@ -10,6 +10,7 @@ package http
 import (
 	"io/ioutil"
 	"net/http"
+	"sync"
 	
 	"github.com/dobyte/http/internal"
 )
@@ -19,16 +20,19 @@ type Response struct {
 	Request *http.Request
 	body    []byte
 	cookies map[string]string
+	mu      sync.Mutex
 }
 
-// Bytes retrieves and returns the response content as []byte.
-func (r *Response) Bytes() []byte {
+// ReadBytes retrieves and returns the response content as []byte.
+func (r *Response) ReadBytes() []byte {
 	if r == nil || r.Response == nil {
 		return []byte{}
 	}
 	
 	if r.body == nil {
 		var err error
+		r.mu.Lock()
+		defer r.mu.Unlock()
 		if r.body, err = ioutil.ReadAll(r.Response.Body); err != nil {
 			return nil
 		}
@@ -37,14 +41,14 @@ func (r *Response) Bytes() []byte {
 	return r.body
 }
 
-// String retrieves and returns the response content as string.
-func (r *Response) String() string {
-	return internal.UnsafeBytesToString(r.Bytes())
+// ReadString retrieves and returns the response content as string.
+func (r *Response) ReadString() string {
+	return internal.UnsafeBytesToString(r.ReadBytes())
 }
 
 // Scan convert the response into a complex data structure.
 func (r *Response) Scan(any interface{}) error {
-	return internal.Scan(r.Bytes(), any)
+	return internal.Scan(r.ReadBytes(), any)
 }
 
 // Close closes the response when it will never be used.