SetBody支持io.Reader，BindBody支持io.Writer

README.md

@@ -15,6 +15,8 @@ gout 是go写的http 客户端，为提高工作效率而开发
     - [http header](#http-header)
     - [http body](#http-body)
         - [body](#body)
+            - [SetBody](#setbody)
+            - [BindBody](#bindbody)
         - [json](#json)
         - [yaml](#yaml)
         - [xml](#xml)
@@ -184,24 +186,36 @@ SetHeader([]string{"active", "enable", "action", "drop"})
 
 ## http body
 ### body
+#### SetBody
 * SetBody 设置string, []byte等类型数据到http body里面
-* BindBody bind body到string, []byte等类型变量里面
 ```go
+// 设置string变量至请求的http body
+err := gout.New(nil).POST(url).SetBody("hello world"/*更多支持类型请看下面*/).Do()
 
-err := gout.New(nil).POST(url).SetBody(/*支持的类型如下*/).Do()
-
+// 设置实现io.Reader接口的变量至 请求的http body
+err = gout.POST(url).SetBody(bytes.NewBufferString("hello world")).Code(&code).Do()
+```
+#### bindBody
+* BindBody bind body到string, []byte等类型变量里面
+```go
+// 解析http body到string类型变量里面
 var s string
-err := gout.New(nil).GET(url).BindBody(&s/*支持的指针类型变量如下*/).Do()
+err := gout.New(nil).GET(url).BindBody(&s/*更多支持指针类型变量请看下面*/).Do()
 
+// 解析http body至实现io.Writer接口的变量里面
+var b bytes.Buffer{}
+err = gout.GET(url).BindBody(&b).Code(&code).Do()
 ```
-## 支持的类型有
+#### 支持的类型有
+* io.Reader(SetBody 支持)
+* io.Writer(BindBody 支持)
 * int, int8, int16, int32, int64
 * uint, uint8, uint16, uint32, uint64
 * string
 * []byte
 * float32, float64
 
-## 明确不支持的类型有
+#### 明确不支持的类型有
 * struct
 * array, slice
 

decode/body.go

@@ -40,6 +40,11 @@ func (b *BodyDecode) Decode(r io.Reader) error {
 }
 
 func DecodeBody(r io.Reader, obj interface{}) error {
+	if w, ok := obj.(io.Writer); ok {
+		_, err := io.Copy(w, r)
+		return err
+	}
+
 	all, err := ioutil.ReadAll(r)
 	if err != nil {
 		return err

decode/body_test.go

@@ -65,6 +65,9 @@ func testDecodeBody(t *testing.T, funcName string) {
 
 		{r: bytes.NewBufferString("test string"), need: core.NewPtrVal("test string"), got: new(string)},
 		{r: bytes.NewBuffer([]byte("test bytes")), need: core.NewPtrVal([]byte("test bytes")), got: new([]byte)},
+
+		// test io.Writer
+		{r: bytes.NewBuffer([]byte("test buffer")), need: bytes.NewBufferString("test buffer"), got: bytes.NewBufferString("")},
 	}
 
 	for _, v := range tests {

encode/body.go

@@ -20,8 +20,14 @@ func NewBodyEncode(obj interface{}) *BodyEncode {
 }
 
 func (b *BodyEncode) Encode(w io.Writer) error {
+	if r, ok := b.obj.(io.Reader); ok {
+		_, err := io.Copy(w, r)
+		return err
+	}
+
 	val := reflect.ValueOf(b.obj)
 	val = core.LoopElem(val)
+
 	switch t := val.Kind(); t {
 	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:

encode/body_test.go

@@ -1,10 +1,12 @@
 package encode
 
 import (
+	"bytes"
 	"github.com/guonaihong/gout/core"
 	"github.com/stretchr/testify/assert"
 	"strings"
 	"testing"
+	"time"
 )
 
 func TestNewBodyEncode(t *testing.T) {
@@ -18,6 +20,12 @@ type bodyTest struct {
 	need string
 }
 
+func Test_body_EncodeFail(t *testing.T) {
+	b := NewBodyEncode(&time.Time{})
+	err := b.Encode(bytes.NewBufferString("hello world"))
+	assert.Error(t, err)
+}
+
 func Test_body_Encode(t *testing.T) {
 
 	tests := []bodyTest{
@@ -35,8 +43,10 @@ func Test_body_Encode(t *testing.T) {
 		{w: &strings.Builder{}, set: []byte("test bytes"), need: "test bytes"},
 		{w: &strings.Builder{}, set: "test string", need: "test string"},
 		{w: &strings.Builder{}, set: int(1), need: "1"},
-
 		{w: &strings.Builder{}, set: core.NewPtrVal(1010), need: "1010"},
+
+		// test io.Reader
+		{w: &strings.Builder{}, set: bytes.NewBufferString("set body:hello world"), need: "set body:hello world"},
 	}
 
 	for _, v := range tests {

group_test.go

@@ -616,12 +616,19 @@ type testBodyNeed struct {
 	Int64   bool `form:"int64"`
 	String  bool `form:"string"`
 	Bytes   bool `form:"bytes"`
+	Reader  bool `form:"reader"`
 }
 
 type testBodyBind struct {
 	Type string `uri:"type"`
 }
 
+type testBodyReq struct {
+	url  string
+	got  interface{}
+	need interface{}
+}
+
 func TestBindBody(t *testing.T) {
 	router := func() *gin.Engine {
 		router := gin.Default()
@@ -660,6 +667,8 @@ func TestBindBody(t *testing.T) {
 				c.String(200, "string")
 			case "bytes":
 				c.String(200, "bytes")
+			case "io.writer":
+				c.String(200, "io.writer")
 			default:
 				c.String(500, "unknown")
 			}
@@ -669,77 +678,34 @@ func TestBindBody(t *testing.T) {
 	}()
 
 	ts := httptest.NewServer(http.HandlerFunc(router.ServeHTTP))
-	code := 0
-
-	var u uint
-	err := New(nil).GET(ts.URL + "/uint").BindBody(&u).Code(&code).Do()
-	assert.Equal(t, u, uint(1))
-	assert.NoError(t, err)
-
-	var u8 uint8
-	err = New(nil).GET(ts.URL + "/uint8").BindBody(&u8).Code(&code).Do()
-	assert.Equal(t, u8, uint8(2))
-	assert.NoError(t, err)
-
-	var u16 uint16
-	err = New(nil).GET(ts.URL + "/uint16").BindBody(&u16).Code(&code).Do()
-	assert.Equal(t, u16, uint16(3))
-	assert.NoError(t, err)
-
-	var u32 uint32
-	err = New(nil).GET(ts.URL + "/uint32").BindBody(&u32).Code(&code).Do()
-	assert.Equal(t, u32, uint32(4))
-	assert.NoError(t, err)
-
-	var u64 uint64
-	err = New(nil).GET(ts.URL + "/uint64").BindBody(&u64).Code(&code).Do()
-	assert.Equal(t, u64, uint64(5))
-	assert.NoError(t, err)
-
-	var i int
-	err = New(nil).GET(ts.URL + "/int").BindBody(&i).Code(&code).Do()
-	assert.Equal(t, i, int(6))
-	assert.NoError(t, err)
-
-	var i8 int8
-	err = New(nil).GET(ts.URL + "/int8").BindBody(&i8).Code(&code).Do()
-	assert.Equal(t, i8, int8(7))
-	assert.NoError(t, err)
 
-	var i16 int16
-	err = New(nil).GET(ts.URL + "/int16").BindBody(&i16).Code(&code).Do()
-	assert.Equal(t, i16, int16(8))
-	assert.NoError(t, err)
-
-	var i32 int32
-	err = New(nil).GET(ts.URL + "/int32").BindBody(&i32).Code(&code).Do()
-	assert.Equal(t, i32, int32(9))
-	assert.NoError(t, err)
-
-	var i64 int64
-	err = New(nil).GET(ts.URL + "/int64").BindBody(&i64).Code(&code).Do()
-	assert.Equal(t, i64, int64(10))
-	assert.NoError(t, err)
-
-	var f32 float32
-	err = New(nil).GET(ts.URL + "/float32").BindBody(&f32).Code(&code).Do()
-	assert.Equal(t, f32, float32(11))
-	assert.NoError(t, err)
+	tests := []testBodyReq{
+		{url: "/uint", got: new(uint), need: core.NewPtrVal(uint(1))},
+		{url: "/uint8", got: new(uint8), need: core.NewPtrVal(uint8(2))},
+		{url: "/uint16", got: new(uint16), need: core.NewPtrVal(uint16(3))},
+		{url: "/uint32", got: new(uint32), need: core.NewPtrVal(uint32(4))},
+		{url: "/uint64", got: new(uint64), need: core.NewPtrVal(uint64(5))},
+		{url: "/int", got: new(int), need: core.NewPtrVal(int(6))},
+		{url: "/int8", got: new(int8), need: core.NewPtrVal(int8(7))},
+		{url: "/int16", got: new(int16), need: core.NewPtrVal(int16(8))},
+		{url: "/int32", got: new(int32), need: core.NewPtrVal(int32(9))},
+		{url: "/int64", got: new(int64), need: core.NewPtrVal(int64(10))},
+		{url: "/float32", got: new(float32), need: core.NewPtrVal(float32(11))},
+		{url: "/float64", got: new(float64), need: core.NewPtrVal(float64(12))},
+		{url: "/string", got: new(string), need: core.NewPtrVal("string")},
+		{url: "/bytes", got: new([]byte), need: core.NewPtrVal([]byte("bytes"))},
+		{url: "/io.writer", got: bytes.NewBufferString(""), need: bytes.NewBufferString("io.writer")},
+	}
 
-	var f64 float64
-	err = New(nil).GET(ts.URL + "/float64").BindBody(&f64).Code(&code).Do()
-	assert.Equal(t, f64, float64(12))
-	assert.NoError(t, err)
+	for _, v := range tests {
 
-	var s string
-	err = New(nil).GET(ts.URL + "/string").BindBody(&s).Code(&code).Do()
-	assert.Equal(t, s, "string")
-	assert.NoError(t, err)
+		code := 0
+		err := New(nil).GET(ts.URL + v.url).BindBody(v.got).Code(&code).Do()
+		assert.Equal(t, code, 200)
+		assert.NoError(t, err)
+		assert.Equal(t, v.got, v.need)
+	}
 
-	var b []byte
-	err = New(nil).GET(ts.URL + "/bytes").BindBody(&b).Code(&code).Do()
-	assert.Equal(t, b, []byte("bytes"))
-	assert.NoError(t, err)
 }
 
 func TestSetBody(t *testing.T) {
@@ -787,6 +753,8 @@ func TestSetBody(t *testing.T) {
 				assert.Equal(t, s, "11")
 			case testBody.Float64:
 				assert.Equal(t, s, "12")
+			case testBody.Reader:
+				assert.Equal(t, s, "test io.Reader")
 			default:
 				c.JSON(500, "unknown type")
 			}
@@ -855,6 +823,11 @@ func TestSetBody(t *testing.T) {
 	err = New(nil).POST(ts.URL).SetQuery(H{"bytes": true}).SetBody([]byte("test bytes")).Code(&code).Do()
 	assert.NoError(t, err)
 	assert.Equal(t, code, 200)
+
+	// test io.Reader
+	err = New(nil).POST(ts.URL).SetQuery(H{"reader": true}).SetBody(bytes.NewBufferString("test io.Reader")).Code(&code).Do()
+	assert.NoError(t, err)
+	assert.Equal(t, code, 200)
 }
 
 func setupProxy(t *testing.T) *gin.Engine {