release v1.3.2

README.md

@@ -4,7 +4,7 @@
 <br/>
 
 ![Go version](https://img.shields.io/badge/go-v1.16-9cf)
-[![Release](https://img.shields.io/badge/release-1.3.1-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-1.3.2-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)

README_zh-CN.md

@@ -4,7 +4,7 @@
 <br/>
 
 ![Go version](https://img.shields.io/badge/go-v1.16-9cf)
-[![Release](https://img.shields.io/badge/release-1.3.1-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-1.3.2-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)

docs/netutil.md

@@ -7,6 +7,8 @@ Package netutil contains functions to get net information and send http request.
 
 [https://github.com/duke-git/lancet/blob/v1/netutil/net.go](https://github.com/duke-git/lancet/blob/v1/netutil/net.go)
 
+[https://github.com/duke-git/lancet/blob/v1/netutil/http_client.go](https://github.com/duke-git/lancet/blob/v1/netutil/http_client.go)
+
 [https://github.com/duke-git/lancet/blob/v1/netutil/http.go](https://github.com/duke-git/lancet/blob/v1/netutil/http.go)
 
 <div STYLE="page-break-after: always;"></div>
@@ -29,13 +31,18 @@ import (
 - [GetPublicIpInfo](#GetPublicIpInfo)
 - [GetRequestPublicIp](#GetRequestPublicIp)
 - [IsPublicIP](#IsPublicIP)
-
 - [IsInternalIP](#IsInternalIP)
-- [HttpGet](#HttpGet)
+- [HttpRequest](#HttpRequest)
-- [HttpDelete](#HttpDelete)
+- [HttpClient](#HttpClient)
-- [HttpPost](#HttpPost)
+- [SendRequest](#SendRequest)
-- [HttpPut](#HttpPut)
+- [DecodeResponse](#DecodeResponse)
-- [HttpPatch](#HttpPatch)
+- [StructToUrlValues](#StructToUrlValues)
+
+- [HttpGet<sup>Deprecated</sup>](#HttpGet)
+- [HttpDelete<sup>Deprecated</sup>](#HttpDelete)
+- [HttpPost<sup>Deprecated</sup>](#HttpPost)
+- [HttpPut<sup>Deprecated</sup>](#HttpPut)
+- [HttpPatch<sup>Deprecated</sup>](#HttpPatch)
 - [ParseHttpResponse](#ParseHttpResponse)
 
 <div STYLE="page-break-after: always;"></div>
@@ -319,7 +326,7 @@ package main
 import (
     "fmt"
 	"net"
-    "github.com/duke-git/lancet/v2/netutil"
+    "github.com/duke-git/lancet/netutil"
 )
 
 func main() {
@@ -333,8 +340,231 @@ func main() {
 
 
 
+### <span id="HttpRequest">HttpRequest</span>
+<p>HttpRequest is a struct used to abstract HTTP request entity.</p>
 
-### <span id="HttpGet">HttpGet</span>
+<b>Signature:</b>
+
+```go
+type HttpRequest struct {
+	RawURL      string
+	Method      string
+	Headers     http.Header
+	QueryParams url.Values
+	FormData    url.Values
+	Body        []byte
+}
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	header := http.Header{}
+	header.Add("Content-Type", "multipart/form-data")
+
+	postData := url.Values{}
+	postData.Add("userId", "1")
+	postData.Add("title", "testItem")
+
+	request := &netutil.HttpRequest{
+		RawURL:   "https://jsonplaceholder.typicode.com/todos",
+		Method:   "POST",
+		Headers:  header,
+		FormData: postData,
+	}
+}
+```
+
+
+### <span id="HttpClient">HttpClient</span>
+<p>HttpClient is a struct used to send HTTP request. It can be instanced with some configurations or none config.</p>
+
+<b>Signature:</b>
+
+```go
+type HttpClient struct {
+	*http.Client
+	TLS     *tls.Config
+	Request *http.Request
+	Config  HttpClientConfig
+}
+
+type HttpClientConfig struct {
+	SSLEnabled       bool
+	TLSConfig        *tls.Config
+	Compressed       bool
+	HandshakeTimeout time.Duration
+	ResponseTimeout  time.Duration
+	Verbose          bool
+}
+
+func NewHttpClient() *HttpClient
+
+func NewHttpClientWithConfig(config *HttpClientConfig) *HttpClient
+
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	httpClientCfg := netutil.HttpClientConfig{
+		SSLEnabled: true,
+		HandshakeTimeout:10 * time.Second
+	}
+	httpClient := netutil.NewHttpClientWithConfig(&httpClientCfg)
+}
+```
+
+
+
+### <span id="SendRequest">SendRequest</span>
+<p>Use HttpClient to send HTTP request.</p>
+
+<b>Signature:</b>
+
+```go
+func (client *HttpClient) SendRequest(request *HttpRequest) (*http.Response, error)
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	request := &netutil.HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := netutil.NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	fmt.Println(todo.Id) //1
+}
+```
+
+
+
+### <span id="DecodeResponse">DecodeResponse</span>
+<p>Decode http response into target object.</p>
+
+<b>Signature:</b>
+
+```go
+func (client *HttpClient) DecodeResponse(resp *http.Response, target interface{}) error
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	request := &netutil.HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := netutil.NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	fmt.Println(todo.Id) //1
+}
+```
+
+
+### <span id="StructToUrlValues">StructToUrlValues</span>
+<p>Convert struct to url values, only convert the field which is exported and has `json` tag.</p>
+
+<b>Signature:</b>
+
+```go
+func StructToUrlValues(targetStruct interface{}) url.Values
+```
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	type TodoQuery struct {
+		Id     int `json:"id"`
+		UserId int `json:"userId"`
+	}
+	todoQuery := TodoQuery{
+		Id:     1,
+		UserId: 2,
+	}
+	todoValues := netutil.StructToUrlValues(todoQuery)
+
+	fmt.Println(todoValues.Get("id")) //1
+	fmt.Println(todoValues.Get("userId")) //2
+}
+```
+
+
+### <span id="HttpGet">HttpGet (Deprecated: use SendRequest for replacement)</span>
 <p>Send http get request.</p>
 
 <b>Signature:</b>
@@ -376,7 +606,7 @@ func main() {
 
 
 
-### <span id="HttpPost">HttpPost</span>
+### <span id="HttpPost">HttpPost (Deprecated: use SendRequest for replacement)</span>
 <p>Send http post request.</p>
 
 <b>Signature:</b>
@@ -425,7 +655,7 @@ func main() {
 
 
 
-### <span id="HttpPut">HttpPut</span>
+### <span id="HttpPut">HttpPut (Deprecated: use SendRequest for replacement)</span>
 <p>Send http put request.</p>
 
 <b>Signature:</b>
@@ -475,7 +705,7 @@ func main() {
 
 
 
-### <span id="HttpDelete">HttpDelete</span>
+### <span id="HttpDelete">HttpDelete (Deprecated: use SendRequest for replacement)</span>
 <p>Send http delete request.</p>
 
 <b>Signature:</b>
@@ -514,7 +744,7 @@ func main() {
 
 
 
-### <span id="HttpPatch">HttpPatch</span>
+### <span id="HttpPatch">HttpPatch (Deprecated: use SendRequest for replacement)</span>
 <p>Send http patch request.</p>
 
 <b>Signature:</b>

docs/netutil_zh-CN.md

@@ -7,6 +7,7 @@ netutil网络包支持获取ip地址，发送http请求。
 
 [https://github.com/duke-git/lancet/blob/v1/netutil/net.go](https://github.com/duke-git/lancet/blob/v1/netutil/net.go)
 
+[https://github.com/duke-git/lancet/blob/v1/netutil/http_client.go](https://github.com/duke-git/lancet/blob/v1/netutil/http_client.go)
 [https://github.com/duke-git/lancet/blob/v1/netutil/http.go](https://github.com/duke-git/lancet/blob/v1/netutil/http.go)
 
 <div STYLE="page-break-after: always;"></div>
@@ -28,14 +29,19 @@ import (
 - [GetMacAddrs](#GetMacAddrs)
 - [GetPublicIpInfo](#GetPublicIpInfo)
 - [GetRequestPublicIp](#GetRequestPublicIp)
-
 - [IsPublicIP](#IsPublicIP)
 - [IsInternalIP](#IsInternalIP)
-- [HttpGet](#HttpGet)
+- [HttpRequest](#HttpRequest)
-- [HttpDelete](#HttpDelete)
+- [HttpClient](#HttpClient)
-- [HttpPost](#HttpPost)
+- [SendRequest](#SendRequest)
-- [HttpPut](#HttpPut)
+- [DecodeResponse](#DecodeResponse)
-- [HttpPatch](#HttpPatch)
+- [StructToUrlValues](#StructToUrlValues)
+
+- [HttpGet<sup>Deprecated</sup>](#HttpGet)
+- [HttpDelete<sup>Deprecated</sup>](#HttpDelete)
+- [HttpPost<sup>Deprecated</sup>](#HttpPost)
+- [HttpPut<sup>Deprecated</sup>](#HttpPut)
+- [HttpPatch<sup>Deprecated</sup>](#HttpPatch)
 - [ParseHttpResponse](#ParseHttpResponse)
 
 <div STYLE="page-break-after: always;"></div>
@@ -333,8 +339,232 @@ func main() {
 ```
 
 
+### <span id="HttpRequest">HttpRequest</span>
+<p>HttpRequest用于抽象HTTP请求实体的结构</p>
 
-### <span id="HttpGet">HttpGet</span>
+<b>函数签名:</b>
+
+```go
+type HttpRequest struct {
+	RawURL      string
+	Method      string
+	Headers     http.Header
+	QueryParams url.Values
+	FormData    url.Values
+	Body        []byte
+}
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	header := http.Header{}
+	header.Add("Content-Type", "multipart/form-data")
+
+	postData := url.Values{}
+	postData.Add("userId", "1")
+	postData.Add("title", "testItem")
+
+	request := &netutil.HttpRequest{
+		RawURL:   "https://jsonplaceholder.typicode.com/todos",
+		Method:   "POST",
+		Headers:  header,
+		FormData: postData,
+	}
+}
+```
+
+
+### <span id="HttpClient">HttpClient</span>
+<p>HttpClient是用于发送HTTP请求的结构体。它可以用一些配置参数或无配置实例化.</p>
+
+<b>函数签名:</b>
+
+```go
+type HttpClient struct {
+	*http.Client
+	TLS     *tls.Config
+	Request *http.Request
+	Config  HttpClientConfig
+}
+
+type HttpClientConfig struct {
+	SSLEnabled       bool
+	TLSConfig        *tls.Config
+	Compressed       bool
+	HandshakeTimeout time.Duration
+	ResponseTimeout  time.Duration
+	Verbose          bool
+}
+
+func NewHttpClient() *HttpClient
+
+func NewHttpClientWithConfig(config *HttpClientConfig) *HttpClient
+
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	httpClientCfg := netutil.HttpClientConfig{
+		SSLEnabled: true,
+		HandshakeTimeout:10 * time.Second
+	}
+	httpClient := netutil.NewHttpClientWithConfig(&httpClientCfg)
+}
+```
+
+
+
+### <span id="SendRequest">SendRequest</span>
+<p>HttpClient发送http请求</p>
+
+<b>函数签名:</b>
+
+```go
+func (client *HttpClient) SendRequest(request *HttpRequest) (*http.Response, error)
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	request := &netutil.HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := netutil.NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	fmt.Println(todo.Id) //1
+}
+```
+
+
+
+### <span id="DecodeResponse">DecodeResponse</span>
+<p>解析http响应体到目标结构体</p>
+
+<b>函数签名:</b>
+
+```go
+func (client *HttpClient) DecodeResponse(resp *http.Response, target interface{}) error
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+	"net"
+	"time"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	request := &netutil.HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := netutil.NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	fmt.Println(todo.Id) //1
+}
+```
+
+
+### <span id="StructToUrlValues">StructToUrlValues</span>
+<p>将结构体转为url values, 仅转化结构体导出字段并且包含`json` tag.</p>
+
+<b>函数签名:</b>
+
+```go
+func StructToUrlValues(targetStruct interface{}) url.Values
+```
+<b>例子:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/netutil"
+)
+
+func main() {
+	type TodoQuery struct {
+		Id     int `json:"id"`
+		UserId int `json:"userId"`
+	}
+	todoQuery := TodoQuery{
+		Id:     1,
+		UserId: 2,
+	}
+	todoValues := netutil.StructToUrlValues(todoQuery)
+
+	fmt.Println(todoValues.Get("id")) //1
+	fmt.Println(todoValues.Get("userId")) //2
+}
+```
+
+
+
+### <span id="HttpGet">HttpGet (Deprecated: use SendRequest for replacement)</span>
 <p>发送http get请求</p>
 
 <b>函数签名:</b>
@@ -376,7 +606,7 @@ func main() {
 
 
 
-### <span id="HttpPost">HttpPost</span>
+### <span id="HttpPost">HttpPost (Deprecated: use SendRequest for replacement)</span>
 <p>发送http post请求</p>
 
 <b>函数签名:</b>
@@ -425,7 +655,7 @@ func main() {
 
 
 
-### <span id="HttpPut">HttpPut</span>
+### <span id="HttpPut">HttpPut (Deprecated: use SendRequest for replacement)</span>
 <p>发送http put请求</p>
 
 <b>函数签名:</b>
@@ -475,7 +705,7 @@ func main() {
 
 
 
-### <span id="HttpDelete">HttpDelete</span>
+### <span id="HttpDelete">HttpDelete (Deprecated: use SendRequest for replacement)</span>
 <p>发送http delete请求</p>
 
 <b>函数签名:</b>
@@ -514,7 +744,7 @@ func main() {
 
 
 
-### <span id="HttpPatch">HttpPatch</span>
+### <span id="HttpPatch">HttpPatch (Deprecated: use SendRequest for replacement)</span>
 <p>发送http patch请求</p>
 
 <b>函数签名:</b>

netutil/http_client.go

@@ -0,0 +1,228 @@
+package netutil
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"reflect"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/duke-git/lancet/slice"
+)
+
+// HttpRequest struct is a composed http request
+type HttpRequest struct {
+	RawURL      string
+	Method      string
+	Headers     http.Header
+	QueryParams url.Values
+	FormData    url.Values
+	Body        []byte
+}
+
+// HttpClientConfig contains some configurations for http client
+type HttpClientConfig struct {
+	SSLEnabled       bool
+	TLSConfig        *tls.Config
+	Compressed       bool
+	HandshakeTimeout time.Duration
+	ResponseTimeout  time.Duration
+	Verbose          bool
+}
+
+// defaultHttpClientConfig defalut client config
+var defaultHttpClientConfig = &HttpClientConfig{
+	Compressed:       false,
+	HandshakeTimeout: 20 * time.Second,
+	ResponseTimeout:  40 * time.Second,
+}
+
+// HttpClient is used for sending http request
+type HttpClient struct {
+	*http.Client
+	TLS     *tls.Config
+	Request *http.Request
+	Config  HttpClientConfig
+}
+
+// NewHttpClient make a HttpClient instance
+func NewHttpClient() *HttpClient {
+	client := &HttpClient{
+		Client: &http.Client{
+			Transport: &http.Transport{
+				TLSHandshakeTimeout:   defaultHttpClientConfig.HandshakeTimeout,
+				ResponseHeaderTimeout: defaultHttpClientConfig.ResponseTimeout,
+				DisableCompression:    !defaultHttpClientConfig.Compressed,
+			},
+		},
+		Config: *defaultHttpClientConfig,
+	}
+
+	return client
+}
+
+// NewHttpClientWithConfig make a HttpClient instance with pass config
+func NewHttpClientWithConfig(config *HttpClientConfig) *HttpClient {
+	if config == nil {
+		config = defaultHttpClientConfig
+	}
+
+	client := &HttpClient{
+		Client: &http.Client{
+			Transport: &http.Transport{
+				TLSHandshakeTimeout:   config.HandshakeTimeout,
+				ResponseHeaderTimeout: config.ResponseTimeout,
+				DisableCompression:    !config.Compressed,
+			},
+		},
+		Config: *config,
+	}
+
+	if config.SSLEnabled {
+		client.TLS = config.TLSConfig
+	}
+
+	return client
+}
+
+// SendRequest send http request
+func (client *HttpClient) SendRequest(request *HttpRequest) (*http.Response, error) {
+	err := validateRequest(request)
+	if err != nil {
+		return nil, err
+	}
+
+	rawUrl := request.RawURL
+
+	req, err := http.NewRequest(request.Method, rawUrl, bytes.NewBuffer(request.Body))
+	if err != nil {
+		return nil, err
+	}
+
+	client.setTLS(rawUrl)
+	client.setHeader(req, request.Headers)
+	client.setQueryParam(req, rawUrl, request.QueryParams)
+
+	if request.FormData != nil {
+		client.setFormData(req, request.FormData)
+	}
+
+	client.Request = req
+
+	resp, err := client.Client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	return resp, nil
+}
+
+// DecodeResponse decode response into target object
+func (client *HttpClient) DecodeResponse(resp *http.Response, target interface{}) error {
+	if resp == nil {
+		return errors.New("invalid target param")
+	}
+	defer resp.Body.Close()
+	return json.NewDecoder(resp.Body).Decode(target)
+}
+
+// setTLS set http client transport TLSClientConfig
+func (client *HttpClient) setTLS(rawUrl string) {
+	if strings.HasPrefix(rawUrl, "https") {
+		if transport, ok := client.Client.Transport.(*http.Transport); ok {
+			transport.TLSClientConfig = client.TLS
+		}
+	}
+}
+
+// setHeader set http rquest header
+func (client *HttpClient) setHeader(req *http.Request, headers http.Header) {
+	if headers == nil {
+		headers = make(http.Header)
+	}
+
+	if _, ok := headers["Accept"]; !ok {
+		headers["Accept"] = []string{"*/*"}
+	}
+	if _, ok := headers["Accept-Encoding"]; !ok && client.Config.Compressed {
+		headers["Accept-Encoding"] = []string{"deflate, gzip"}
+	}
+
+	req.Header = headers
+}
+
+// setQueryParam set http request query string param
+func (client *HttpClient) setQueryParam(req *http.Request, reqUrl string, queryParam url.Values) error {
+	if queryParam != nil {
+		if !strings.Contains(reqUrl, "?") {
+			reqUrl = reqUrl + "?" + queryParam.Encode()
+		} else {
+			reqUrl = reqUrl + "&" + queryParam.Encode()
+		}
+		u, err := url.Parse(reqUrl)
+		if err != nil {
+			return err
+		}
+		req.URL = u
+	}
+	return nil
+}
+
+func (client *HttpClient) setFormData(req *http.Request, values url.Values) {
+	formData := []byte(values.Encode())
+	req.Body = ioutil.NopCloser(bytes.NewReader(formData))
+	req.ContentLength = int64(len(formData))
+}
+
+// validateRequest check if a request has url, and valid method.
+func validateRequest(req *HttpRequest) error {
+	if req.RawURL == "" {
+		return errors.New("invalid request url")
+	}
+
+	// common HTTP methods
+	methods := []string{"GET", "POST", "PUT", "DELETE", "PATCH",
+		"HEAD", "CONNECT", "OPTIONS", "TRACE"}
+
+	if !slice.Contain(methods, strings.ToUpper(req.Method)) {
+		return errors.New("invalid request method")
+	}
+
+	return nil
+}
+
+// StructToUrlValues convert struct to url valuse,
+// only convert the field which is exported and has `json` tag
+func StructToUrlValues(targetStruct interface{}) url.Values {
+	rv := reflect.ValueOf(targetStruct)
+	rt := reflect.TypeOf(targetStruct)
+
+	if rt.Kind() == reflect.Ptr {
+		rt = rt.Elem()
+	}
+	if rt.Kind() != reflect.Struct {
+		panic(fmt.Errorf("data type %T not support, shuld be struct or pointer to struct", targetStruct))
+	}
+
+	result := url.Values{}
+
+	fieldNum := rt.NumField()
+	pattern := `^[A-Z]`
+	regex := regexp.MustCompile(pattern)
+	for i := 0; i < fieldNum; i++ {
+		name := rt.Field(i).Name
+		tag := rt.Field(i).Tag.Get("json")
+		if regex.MatchString(name) && tag != "" {
+			result.Add(tag, fmt.Sprintf("%v", rv.Field(i).Interface()))
+		}
+	}
+
+	return result
+}

netutil/http_client_test.go

@@ -0,0 +1,95 @@
+package netutil
+
+import (
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/url"
+	"testing"
+
+	"github.com/duke-git/lancet/internal"
+)
+
+func TestHttpClient_Get(t *testing.T) {
+	assert := internal.NewAssert(t, "TestHttpClient_Get")
+
+	request := &HttpRequest{
+		RawURL: "https://jsonplaceholder.typicode.com/todos/1",
+		Method: "GET",
+	}
+
+	httpClient := NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	type Todo struct {
+		UserId    int    `json:"userId"`
+		Id        int    `json:"id"`
+		Title     string `json:"title"`
+		Completed bool   `json:"completed"`
+	}
+
+	var todo Todo
+	httpClient.DecodeResponse(resp, &todo)
+
+	assert.Equal(1, todo.Id)
+}
+
+func TestHttpClent_Post(t *testing.T) {
+	header := http.Header{}
+	header.Add("Content-Type", "multipart/form-data")
+
+	postData := url.Values{}
+	postData.Add("userId", "1")
+	postData.Add("title", "testItem")
+
+	request := &HttpRequest{
+		RawURL:   "https://jsonplaceholder.typicode.com/todos",
+		Method:   "POST",
+		Headers:  header,
+		FormData: postData,
+	}
+
+	httpClient := NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	body, _ := ioutil.ReadAll(resp.Body)
+	t.Log("response: ", resp.StatusCode, string(body))
+}
+
+func TestStructToUrlValues(t *testing.T) {
+	assert := internal.NewAssert(t, "TestStructToUrlValues")
+
+	type TodoQuery struct {
+		Id     int `json:"id"`
+		UserId int `json:"userId"`
+	}
+	todoQuery := TodoQuery{
+		Id:     1,
+		UserId: 1,
+	}
+	todoValues := StructToUrlValues(todoQuery)
+
+	assert.Equal("1", todoValues.Get("id"))
+	assert.Equal("1", todoValues.Get("userId"))
+
+	request := &HttpRequest{
+		RawURL:      "https://jsonplaceholder.typicode.com/todos",
+		Method:      "GET",
+		QueryParams: todoValues,
+	}
+
+	httpClient := NewHttpClient()
+	resp, err := httpClient.SendRequest(request)
+	if err != nil || resp.StatusCode != 200 {
+		log.Fatal(err)
+	}
+
+	body, _ := ioutil.ReadAll(resp.Body)
+	t.Log("response: ", string(body))
+}