diff --git a/Readme.md b/Readme.md
index 894201f..8b27931 100644
--- a/Readme.md
+++ b/Readme.md
@@ -377,6 +377,45 @@ fmt.Printf("返回结果: %#v", res)
 
 ## 用户信息
 
+- 初始化
+
+```go
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/medivhzhan/weapp/v3"
+	"github.com/medivhzhan/weapp/v3/auth"
+)
+
+func main() {
+	sdk := weapp.NewClient("your-appid", "your-secret")
+
+	cli := sdk.NewAuth()
+
+    // 用户支付完成后，获取该用户的 UnionId，无需用户授权。
+	rsp, err := cli.GetPaidUnionId(&auth.GetPaidUnionIdRequest{})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+    // 检查加密信息是否由微信生成（当前只支持手机号加密数据），只能检测最近3天生成的加密数据
+	rsp, err := cli.CheckEncryptedData(&auth.CheckEncryptedDataRequest{})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if err := rsp.GetResponseError(); err != nil {
+		log.Println(err)
+	}
+
+	fmt.Println(rsp)
+}
+
+```
+
 ### getPaidUnionId
 
 [官方文档](https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/user-info/auth.getPaidUnionId.html)
diff --git a/auth/auth.go b/auth/auth.go
new file mode 100644
index 0000000..1b0a3b5
--- /dev/null
+++ b/auth/auth.go
@@ -0,0 +1,20 @@
+package auth
+
+import "github.com/medivhzhan/weapp/v3/request"
+
+// 用户信息
+type Auth struct {
+	request *request.Request
+	// 组成完整的 URL 地址
+	// 默认包含 AccessToken
+	conbineURI func(url string, req interface{}) (string, error)
+}
+
+func NewAuth(request *request.Request, conbineURI func(url string, req interface{}) (string, error)) *Auth {
+	sm := Auth{
+		request:    request,
+		conbineURI: conbineURI,
+	}
+
+	return &sm
+}
diff --git a/auth/check_encrypted_data.go b/auth/check_encrypted_data.go
new file mode 100644
index 0000000..980eb94
--- /dev/null
+++ b/auth/check_encrypted_data.go
@@ -0,0 +1,35 @@
+package auth
+
+import "github.com/medivhzhan/weapp/v3/request"
+
+const apiCheckEncryptedData = "/wxa/business/checkencryptedmsg"
+
+type CheckEncryptedDataRequest struct {
+	// 必填 加密数据的sha256，通过Hex（Base16）编码后的字符串
+	EncryptedMsgHash string `json:"encrypted_msg_hash"`
+}
+
+type CheckEncryptedDataResponse struct {
+	request.CommonError
+	// 是否是合法的数据
+	Valid bool `json:"vaild"`
+	// 加密数据生成的时间戳
+	CreateTime int64 `json:"create_time"`
+}
+
+// 检查加密信息是否由微信生成（当前只支持手机号加密数据），只能检测最近3天生成的加密数据
+func (cli *Auth) CheckEncryptedData(req *CheckEncryptedDataRequest) (*CheckEncryptedDataResponse, error) {
+
+	api, err := cli.conbineURI(apiCheckEncryptedData, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	res := new(CheckEncryptedDataResponse)
+	err = cli.request.Post(api, req, res)
+	if err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}
diff --git a/auth/get_paid_union_id.go b/auth/get_paid_union_id.go
new file mode 100644
index 0000000..962894c
--- /dev/null
+++ b/auth/get_paid_union_id.go
@@ -0,0 +1,39 @@
+package auth
+
+import "github.com/medivhzhan/weapp/v3/request"
+
+const apiGetPaidUnionId = "/wxa/getpaidunionid"
+
+type GetPaidUnionIdRequest struct {
+	// 必填	支付用户唯一标识
+	Openid string `json:"openid"`
+	// 非必填	微信支付订单号
+	TransactionId string `json:"transaction_id"`
+	// 非必填	微信支付分配的商户号，和商户订单号配合使用
+	MchId string `json:"mch_id"`
+	// 非必填	微信支付商户订单号，和商户号配合使用
+	OutTradeNo string `json:"out_trade_no"`
+}
+
+type GetPaidUnionIdResponse struct {
+	request.CommonError
+	// 用户唯一标识，调用成功后返回
+	UnionID string `json:"unionid"`
+}
+
+// 用户支付完成后，获取该用户的 UnionId，无需用户授权。
+func (cli *Auth) GetPaidUnionId(req *GetPaidUnionIdRequest) (*GetPaidUnionIdResponse, error) {
+
+	api, err := cli.conbineURI(apiGetPaidUnionId, req)
+	if err != nil {
+		return nil, err
+	}
+
+	res := new(GetPaidUnionIdResponse)
+	err = cli.request.Get(api, res)
+	if err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}
diff --git a/livebroadcast/get_liveInfo.go b/livebroadcast/get_liveInfo.go
index 62c7665..a3e9c83 100644
--- a/livebroadcast/get_liveInfo.go
+++ b/livebroadcast/get_liveInfo.go
@@ -8,7 +8,7 @@ type PriceType uint8
 
 const (
 	_                 PriceType = iota
-	PriceTypeOne                // 一口价
+	PriceTypeNormal             // 一口价
 	PriceTypeRange              // 区间价格
 	PriceTypeDiscount           // 折扣价格
 )
diff --git a/livebroadcast/get_shared_code.go b/livebroadcast/get_shared_code.go
index 3debd25..e654f97 100644
--- a/livebroadcast/get_shared_code.go
+++ b/livebroadcast/get_shared_code.go
@@ -2,16 +2,16 @@ package livebroadcast
 
 import "github.com/medivhzhan/weapp/v3/request"
 
-const apigetSharedCode = "/wxaapi/broadcast/room/getsharedcode"
+const apiGetSharedCode = "/wxaapi/broadcast/room/GetSharedCode"
 
-type getSharedCodeRequest struct {
+type GetSharedCodeRequest struct {
 	//	房间ID
 	RoomId int64 `json:"roomId"`
 	// 自定义参数
 	Params int64 `json:"params"`
 }
 
-type getSharedCodeResponse struct {
+type GetSharedCodeResponse struct {
 	request.CommonError
 	// 分享二维码地址
 	CdnUrl string `json:"cdnUrl"`
@@ -22,14 +22,14 @@ type getSharedCodeResponse struct {
 }
 
 // 获取直播间分享二维码
-func (cli *LiveBroadcast) GetSharedCode(req *getSharedCodeRequest) (*getSharedCodeResponse, error) {
+func (cli *LiveBroadcast) GetSharedCode(req *GetSharedCodeRequest) (*GetSharedCodeResponse, error) {
 
-	api, err := cli.conbineURI(apigetSharedCode, req)
+	api, err := cli.conbineURI(apiGetSharedCode, req)
 	if err != nil {
 		return nil, err
 	}
 
-	res := new(getSharedCodeResponse)
+	res := new(GetSharedCodeResponse)
 	err = cli.request.Get(api, res)
 	if err != nil {
 		return nil, err
diff --git a/livebroadcast/get_sub_anchor.go b/livebroadcast/get_sub_anchor.go
new file mode 100644
index 0000000..15c3374
--- /dev/null
+++ b/livebroadcast/get_sub_anchor.go
@@ -0,0 +1,32 @@
+package livebroadcast
+
+import "github.com/medivhzhan/weapp/v3/request"
+
+const apiGetSubAnchor = "/wxaapi/broadcast/room/GetSubAnchor"
+
+type GetSubAnchorRequest struct {
+	//	房间ID
+	RoomId int64 `json:"roomId"`
+}
+
+type GetSubAnchorResponse struct {
+	request.CommonError
+	Username string `json:"username"`
+}
+
+// 获取主播副号
+func (cli *LiveBroadcast) GetSubAnchor(req *GetSubAnchorRequest) (*GetSubAnchorResponse, error) {
+
+	api, err := cli.conbineURI(apiGetSubAnchor, req)
+	if err != nil {
+		return nil, err
+	}
+
+	res := new(GetSubAnchorResponse)
+	err = cli.request.Get(api, res)
+	if err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}
diff --git a/livebroadcast/goods_add.go b/livebroadcast/goods_add.go
new file mode 100644
index 0000000..3b61bc7
--- /dev/null
+++ b/livebroadcast/goods_add.go
@@ -0,0 +1,52 @@
+package livebroadcast
+
+import "github.com/medivhzhan/weapp/v3/request"
+
+const apiGoodsAdd = "/wxaapi/broadcast/goods/add"
+
+type GoodsAddRequest struct {
+	//	商品信息
+	GoodsInfo GoodsInfo `json:"goodsInfo"`
+}
+
+type GoodsInfo struct {
+	// 必填 填入mediaID（mediaID获取后，三天内有效）；图片mediaID的获取，请参考以下文档： https://developers.weixin.qq.com/doc/offiaccount/Asset_Management/New_temporary_materials.html；图片规则：图片尺寸最大300像素*300像素；
+	CoverImgUrl string `json:"coverImgUrl"`
+	// 必填 商品名称，最长14个汉字，1个汉字相当于2个字符
+	Name string `json:"name"`
+	// 必填 价格类型，1：一口价（只需要传入price，price2不传） 2：价格区间（price字段为左边界，price2字段为右边界，price和price2必传） 3：显示折扣价（price字段为原价，price2字段为现价， price和price2必传）
+	PriceType PriceType `json:"priceType"`
+	// 必填 数字，最多保留两位小数，单位元
+	Price float64 `json:"price"`
+	// 非必填	数字，最多保留两位小数，单位元
+	Price2 float64 `json:"price2"`
+	// 必填 商品详情页的小程序路径，路径参数存在 url 的，该参数的值需要进行 encode 处理再填入
+	Url string `json:"url"`
+	// 非必填	当商品为第三方小程序的商品则填写为对应第三方小程序的appid，自身小程序商品则为''
+	ThirdPartyAppid string `json:"thirdPartyAppid"`
+}
+
+type GoodsAddResponse struct {
+	request.CommonError
+	// 商品ID
+	GoodsId string `json:"goodsId"`
+	// 审核单ID
+	AuditId string `json:"auditId"`
+}
+
+// 商品添加并提审
+func (cli *LiveBroadcast) GoodsAdd(req *GoodsAddRequest) (*GoodsAddResponse, error) {
+
+	api, err := cli.conbineURI(apiGoodsAdd, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	res := new(GoodsAddResponse)
+	err = cli.request.Post(api, req, res)
+	if err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}
diff --git a/weapp.go b/weapp.go
index 3bb2f0f..78d3eab 100644
--- a/weapp.go
+++ b/weapp.go
@@ -5,6 +5,7 @@ import (
 	"net/http"
 	"os"
 
+	"github.com/medivhzhan/weapp/v3/auth"
 	"github.com/medivhzhan/weapp/v3/cache"
 	"github.com/medivhzhan/weapp/v3/livebroadcast"
 	"github.com/medivhzhan/weapp/v3/logger"
@@ -163,6 +164,11 @@ func (cli *Client) conbineURI(url string, req interface{}) (string, error) {
 	return request.EncodeURL(baseURL+url, output)
 }
 
+// 用户信息
+func (cli *Client) NewAuth() *auth.Auth {
+	return auth.NewAuth(cli.request, cli.conbineURI)
+}
+
 // 微信通知监听服务
 func (cli *Client) NewServer(token, aesKey, mchID, apiKey string, validate bool, handler func(map[string]interface{}) map[string]interface{}) (*server.Server, error) {
 	return server.NewServer(cli.appid, token, aesKey, mchID, apiKey, validate, handler)