diff --git a/index.go b/index.go
new file mode 100644
index 0000000..117804e
--- /dev/null
+++ b/index.go
@@ -0,0 +1 @@
+package third_platform_sdk
diff --git a/platform/meituan-csr/aes.go b/platform/meituan-csr/aes.go
new file mode 100644
index 0000000..d0fe53d
--- /dev/null
+++ b/platform/meituan-csr/aes.go
@@ -0,0 +1,61 @@
+package meituan_csr
+
+import (
+	"bytes"
+	"crypto/aes"
+	"encoding/base64"
+)
+
+type AES struct {
+	AesKey string
+}
+
+func NewAes(aesKey string) *AES {
+	return &AES{
+		AesKey: aesKey,
+	}
+}
+
+func (c *AES) Encode(data string) (string, error) {
+	_key := []byte(c.AesKey)
+
+	block, err := aes.NewCipher(_key)
+	if err != nil {
+		return "", err
+	}
+	// 计算需要补齐的字节数
+	paddingSize := block.BlockSize() - len([]byte(data))%block.BlockSize()
+	paddedText := append([]byte(data), bytes.Repeat([]byte{byte(paddingSize)}, paddingSize)...)
+
+	encryptedData := make([]byte, len(paddedText))
+	for i := 0; i < len(paddedText); i += block.BlockSize() {
+		block.Encrypt(encryptedData[i:], paddedText[i:]) // 分组加密
+	}
+
+	encodedString := base64.StdEncoding.EncodeToString(encryptedData) // Base64编码
+	return encodedString, nil
+}
+func (c *AES) Decode(data string) (str string, err error) {
+	_key := []byte(c.AesKey)
+
+	decodedBytes, err := base64.StdEncoding.DecodeString(data) // Base64解码
+	if err != nil {
+		return "", err
+	}
+	block, err := aes.NewCipher(_key) // 创建AES对象
+	if err != nil {
+		return "", err
+	}
+	decryptedData := make([]byte, len(decodedBytes))
+	for i := 0; i < len(decodedBytes); i += block.BlockSize() {
+		block.Decrypt(decryptedData[i:], decodedBytes[i:]) // 分组解密
+	}
+	unpadedText := c._PKCS5UnPadding(decryptedData) // 去除填充
+	return string(unpadedText), nil
+}
+
+func (c *AES) _PKCS5UnPadding(data []byte) []byte {
+	length := len(data)
+	unpadding := int(data[length-1])
+	return data[:(length - unpadding)]
+}
diff --git a/platform/meituan-csr/api.go b/platform/meituan-csr/api.go
index 8b9ceb1..48739e7 100644
--- a/platform/meituan-csr/api.go
+++ b/platform/meituan-csr/api.go
@@ -1,11 +1,12 @@
 package meituan_csr
 
 import (
+	"context"
 	"fmt"
-	"sort"
-	"strings"
+	"time"
 
 	"github.com/zeromicro/go-zero/core/logx"
+	"github.com/zeromicro/go-zero/core/trace"
 
 	"chengdu-lenntc/third-platform-sdk/client"
 	"chengdu-lenntc/third-platform-sdk/util"
@@ -13,16 +14,50 @@ import (
 
 // Api 调用第三方平台的api
 type MeituanCsrApi interface {
+	GetLink(params PromotionLinkRequest) (*PromotionLinkResponse, error)
+	Url(ctx context.Context, url string) string
 }
 
-type meituanApiImpl struct {
+type meituanCsrApiImpl struct {
 	log    logx.Logger
 	client *Client
 }
 
-func newMeituanApiImpl(log logx.Logger, client *Client) MeituanCsrApi {
-	return &meituanApiImpl{
+func newMeituanCsrApiImpl(log logx.Logger, client *Client) MeituanCsrApi {
+	return &meituanCsrApiImpl{
 		log:    log,
 		client: client,
 	}
-}
\ No newline at end of file
+}
+
+func (a *meituanCsrApiImpl) GetLink(params PromotionLinkRequest) (*PromotionLinkResponse, error) {
+	queryArgs := util.StructToMap(params)
+	req := &client.HttpRequest{Headers: a.client.Headers, QueryArgs: queryArgs}
+	response := new(PromotionLinkResponse)
+	if err := a.client.HttpGet(GetLinkUrl, req, &client.HttpResponse{Result: response}); err != nil {
+		return nil, err
+	}
+	return response, nil
+}
+
+func (a *meituanCsrApiImpl) Url(ctx context.Context, url string) string {
+	requestId := trace.TraceIDFromContext(ctx)
+	timestamp := time.Now().Unix()
+	accessToken := a.generateAccessToken(timestamp)
+	return fmt.Sprintf("%s?requestId=%s&version=%s&accessToken=%s&utmSource=%s&timestamp=%d", url, requestId, "2.0", accessToken, a.client.authConfig.UtmSource, timestamp)
+}
+
+func (a *meituanCsrApiImpl) sign(params map[string]any) string {
+	//kvPairs := util.MapToSliceByKeyValue(params)
+	//sort.Strings(kvPairs)
+	//paramStr := strings.Join(kvPairs, "")
+	//return util.Md5String(a.SignKey + paramStr + a.SignKey)
+	return ""
+}
+
+func (a *meituanCsrApiImpl) generateAccessToken(ts int64) string {
+	//Access_token生成规则
+	//将媒体utmSource与时间戳（秒）拼接起来，然后使用AES加密生成。例如：utmSource为1000，时间戳1555510603，则access_token为AesEncode(10001555510603)，每个token有效期为1小时
+	encodeStr, _ := a.client.authConfig.aes.Encode(fmt.Sprintf("%s%d", a.client.authConfig.UtmSource, ts))
+	return encodeStr
+}
diff --git a/platform/meituan-csr/client.go b/platform/meituan-csr/client.go
index 566b7d1..3ee392e 100644
--- a/platform/meituan-csr/client.go
+++ b/platform/meituan-csr/client.go
@@ -1 +1,35 @@
 package meituan_csr
+
+import (
+	"github.com/zeromicro/go-zero/core/logx"
+
+	"chengdu-lenntc/third-platform-sdk/client"
+)
+
+// AuthConfig api鉴权参数
+type AuthConfig struct {
+	AppKey    string
+	UtmSource string
+	aes       *AES
+}
+
+// 连接第三方平台的client
+type Client struct {
+	client.ThirdClient
+	log        logx.Logger
+	authConfig AuthConfig
+	Headers    map[string]string
+}
+
+func newClient(log logx.Logger, conf AuthConfig) *Client {
+	return &Client{
+		ThirdClient: client.NewThirdClient(log),
+		log:         log,
+		authConfig:  conf,
+	}
+}
+
+func NewApiClient(log logx.Logger, conf AuthConfig) MeituanCsrApi {
+	clt := newClient(log, conf)
+	return newMeituanCsrApiImpl(log, clt)
+}
diff --git a/platform/meituan-csr/consts.go b/platform/meituan-csr/consts.go
index 566b7d1..8f83bf5 100644
--- a/platform/meituan-csr/consts.go
+++ b/platform/meituan-csr/consts.go
@@ -1 +1,6 @@
 package meituan_csr
+
+const (
+	Domain     = "https://union.dianping.com"
+	GetLinkUrl = Domain + "/api/promotion/link"
+)
diff --git a/platform/meituan-csr/types.go b/platform/meituan-csr/types.go
index 566b7d1..58c8ba2 100644
--- a/platform/meituan-csr/types.go
+++ b/platform/meituan-csr/types.go
@@ -1 +1,29 @@
 package meituan_csr
+
+type PromotionLinkRequest struct {
+	UtmSource    string  `json:"utmSource"`
+	UtmMedium    string  `json:"utmMedium"`
+	Activity     string  `json:"activity"`
+	PromotionId  string  `json:"promotionId"`
+	PageLevel    int64   `json:"pageLevel"`
+	UserLevel    float64 `json:"userLevel"`
+	DemandQrInfo bool    `json:"demandQrInfo"`
+}
+
+type LinkVO struct {
+	Activity             string `json:"activity"`
+	CommonLink           string `json:"commonLink"`
+	ShortLink            string `json:"shortLink"`
+	CommonQrCode         string `json:"commonQrCode"`
+	MiniProgramPath      string `json:"miniProgramPath"`
+	MiniProgramQrCode    string `json:"miniProgramQrCode"`
+	MaterialDownloadLink string `json:"materialDownloadLink"`
+	BeginTime            int64  `json:"beginTime"`
+	EndTime              int64  `json:"endTime"`
+}
+
+type PromotionLinkResponse struct {
+	Code int64  `json:"code"`
+	Msg  string `json:"msg"`
+	Data LinkVO `json:"data"`
+}
diff --git a/platform/meituan-union/api.go b/platform/meituan-union/api.go
index b1f6e33..b8699e6 100644
--- a/platform/meituan-union/api.go
+++ b/platform/meituan-union/api.go
@@ -19,19 +19,19 @@ type MeituanUnionApi interface {
 	GetOrderByBatch(params GetOrderByBatchRequest) (*GetOrderByBatchResponse, error)
 }
 
-type meituanApiImpl struct {
+type meituanUnionApiImpl struct {
 	log    logx.Logger
 	client *Client
 }
 
-func newMeituanApiImpl(log logx.Logger, client *Client) MeituanUnionApi {
-	return &meituanApiImpl{
+func newMeituanUnionApiImpl(log logx.Logger, client *Client) MeituanUnionApi {
+	return &meituanUnionApiImpl{
 		log:    log,
 		client: client,
 	}
 }
 
-func (a *meituanApiImpl) GetLink(params GenerateLinkRequest) (*GenerateLinkResponse, error) {
+func (a *meituanUnionApiImpl) GetLink(params GenerateLinkRequest) (*GenerateLinkResponse, error) {
 	params.Sign = a.sign(util.StructToMap(params))
 	queryArgs := util.StructToMap(params)
 	req := &client.HttpRequest{Headers: a.client.Headers, QueryArgs: queryArgs}
@@ -42,7 +42,7 @@ func (a *meituanApiImpl) GetLink(params GenerateLinkRequest) (*GenerateLinkRespo
 	return response, nil
 }
 
-func (a *meituanApiImpl) MiniCode(params MiniCodeRequest) (*MimiCodeResponse, error) {
+func (a *meituanUnionApiImpl) MiniCode(params MiniCodeRequest) (*MimiCodeResponse, error) {
 	params.Sign = a.sign(util.StructToMap(params))
 	queryArgs := util.StructToMap(params)
 	req := &client.HttpRequest{Headers: a.client.Headers, QueryArgs: queryArgs}
@@ -52,7 +52,7 @@ func (a *meituanApiImpl) MiniCode(params MiniCodeRequest) (*MimiCodeResponse, er
 	}
 	return response, nil
 }
-func (a *meituanApiImpl) GetOrderBySinge(params GetOrderBySingeRequest) (*GetOrderBySingeResponse, error) {
+func (a *meituanUnionApiImpl) GetOrderBySinge(params GetOrderBySingeRequest) (*GetOrderBySingeResponse, error) {
 	params.Sign = a.sign(util.StructToMap(params))
 	queryArgs := util.StructToMap(params)
 	req := &client.HttpRequest{Headers: a.client.Headers, QueryArgs: queryArgs}
@@ -62,7 +62,7 @@ func (a *meituanApiImpl) GetOrderBySinge(params GetOrderBySingeRequest) (*GetOrd
 	}
 	return response, nil
 }
-func (a *meituanApiImpl) GetOrderByBatch(params GetOrderByBatchRequest) (*GetOrderByBatchResponse, error) {
+func (a *meituanUnionApiImpl) GetOrderByBatch(params GetOrderByBatchRequest) (*GetOrderByBatchResponse, error) {
 	params.Sign = a.sign(util.StructToMap(params))
 	queryArgs := util.StructToMap(params)
 	req := &client.HttpRequest{Headers: a.client.Headers, QueryArgs: queryArgs}
@@ -73,21 +73,21 @@ func (a *meituanApiImpl) GetOrderByBatch(params GetOrderByBatchRequest) (*GetOrd
 	return response, nil
 }
 
-func (a *meituanApiImpl) sign(params map[string]interface{}) string {
+func (a *meituanUnionApiImpl) sign(params map[string]interface{}) string {
 	kvPairs := a.getSignStr(params)
 	sort.Strings(kvPairs)
 	paramStr := strings.Join(kvPairs, "")
 	return util.Md5String(a.client.authConfig.SignKey + paramStr + a.client.authConfig.SignKey)
 }
 
-func (a *meituanApiImpl) notifySign(params map[string]interface{}) string {
+func (a *meituanUnionApiImpl) notifySign(params map[string]interface{}) string {
 	kvPairs := a.getSignStr(params)
 	sort.Strings(kvPairs)
 	paramStr := strings.Join(kvPairs, "")
 	return util.Md5String(a.client.authConfig.NotifyKey + paramStr + a.client.authConfig.NotifyKey)
 }
 
-func (a *meituanApiImpl) getSignStr(dataMap map[string]any) []string {
+func (a *meituanUnionApiImpl) getSignStr(dataMap map[string]any) []string {
 	var kvPairs []string
 	for k, v := range dataMap {
 		key := a.lowerFirstLetter(k)
@@ -99,7 +99,7 @@ func (a *meituanApiImpl) getSignStr(dataMap map[string]any) []string {
 	return kvPairs
 }
 
-func (a *meituanApiImpl) lowerFirstLetter(s string) string {
+func (a *meituanUnionApiImpl) lowerFirstLetter(s string) string {
 	if len(s) == 0 {
 		return s
 	}
diff --git a/platform/meituan-union/client.go b/platform/meituan-union/client.go
index 2982e5c..fd5bc0d 100644
--- a/platform/meituan-union/client.go
+++ b/platform/meituan-union/client.go
@@ -31,5 +31,5 @@ func newClient(log logx.Logger, conf AuthConfig) *Client {
 
 func NewApiClient(log logx.Logger, conf AuthConfig) MeituanUnionApi {
 	clt := newClient(log, conf)
-	return newMeituanApiImpl(log, clt)
+	return newMeituanUnionApiImpl(log, clt)
 }