diff --git a/sdk/auth/credentials/access_key_creditial.go b/sdk/auth/credentials/access_key_credential.go
similarity index 100%
rename from sdk/auth/credentials/access_key_creditial.go
rename to sdk/auth/credentials/access_key_credential.go
diff --git a/sdk/auth/credentials/sts_token_credential.go b/sdk/auth/credentials/sts_token_credential.go
new file mode 100644
index 0000000..ef5847c
--- /dev/null
+++ b/sdk/auth/credentials/sts_token_credential.go
@@ -0,0 +1,15 @@
+package credentials
+
+type StdTokenCredential struct {
+	AccessKeyId     string
+	AccessKeySecret string
+	AccessKeyFrom   string
+}
+
+func NewStsTokenCredential(accessKeyId, accessKeySecret, accessFrom string) *StdTokenCredential {
+	return &StdTokenCredential{
+		AccessKeyId:     accessKeyId,
+		AccessKeySecret: accessKeySecret,
+		AccessKeyFrom:   accessFrom,
+	}
+}
diff --git a/sdk/auth/rpc_signature_composer.go b/sdk/auth/rpc_signature_composer.go
index 2c32042..049f80f 100644
--- a/sdk/auth/rpc_signature_composer.go
+++ b/sdk/auth/rpc_signature_composer.go
@@ -26,7 +26,9 @@ func signRpcRequest(request requests.AcsRequest, signer Signer) (err error) {
 	request.SetStringToSign(stringToSign)
 	signature := signer.Sign(stringToSign, "&")
 	request.GetQueryParams()["sign"] = signature
-	debug("grsdk sign %s", signature)
+	debug("GrSdk sign: %s", signature)
+	debug("GrSdk sign string: %s", stringToSign)
+	debug("GrSdk sign: \r\n")
 	return
 }
 
@@ -107,7 +109,7 @@ func unsignRpcRequest(request *http.Request, signer Signer) (err error) {
 	stringToSign = strings.Replace(stringToSign, "%7E", "~", -1)
 	stringToSign = url.QueryEscape(stringToSign)
 	stringToSign = request.Method + "&%2F&" + stringToSign
-	debug("grsdk signstring %s", stringToSign)
+	debug("GrSdk sign: %s", stringToSign)
 
 	if timestamp, err := strconv.ParseInt(signParams["access_time"], 10, 64); err != nil {
 		return err
diff --git a/sdk/auth/signer.go b/sdk/auth/signer.go
index 86ffa8c..2b29ec5 100644
--- a/sdk/auth/signer.go
+++ b/sdk/auth/signer.go
@@ -22,6 +22,8 @@ func NewSignerWithCredential(credential Credential, commonApi func(request *requ
 		signer = signers.NewAccessKeySigner(instance)
 	case *credentials.BaseCredential:
 		signer = signers.NewAccessKeySigner(instance.ToAccessKeyCredential())
+	case *credentials.StdTokenCredential:
+		signer = signers.NewStsTokenSigner(instance)
 	default:
 		err = errors.New("UnsupportedCredentialErrorCode  = SDK.UnsupportedCredential")
 	}
diff --git a/sdk/auth/signers/sts_token_signer.go b/sdk/auth/signers/sts_token_signer.go
new file mode 100644
index 0000000..c4bc69b
--- /dev/null
+++ b/sdk/auth/signers/sts_token_signer.go
@@ -0,0 +1,41 @@
+package signers
+
+import (
+	"crypto/md5"
+	"fmt"
+	"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/auth/credentials"
+)
+
+type StsTokenSigner struct {
+	credential *credentials.StdTokenCredential
+}
+
+func (signer *StsTokenSigner) GetAccessKeyId() (string, error) {
+	return signer.credential.AccessKeyId, nil
+}
+
+func (signer *StsTokenSigner) GetAccessKeyFrom() (string, error) {
+	return signer.credential.AccessKeyFrom, nil
+}
+
+func (*StsTokenSigner) GetName() string {
+	return "MD5"
+}
+
+func (signer *StsTokenSigner) Sign(stringToSign, secretSuffix string) string {
+	secret := signer.credential.AccessKeySecret + secretSuffix
+	return Md5(stringToSign, secret)
+}
+
+func NewStsTokenSigner(credential *credentials.StdTokenCredential) *StsTokenSigner {
+	return &StsTokenSigner{
+		credential: credential,
+	}
+}
+
+func Md5(source, secret string) string {
+	data := []byte(fmt.Sprintf("%s##%s", secret, source))
+	has := md5.Sum(data)
+	md5str := fmt.Sprintf("%x", has)
+	return md5str
+}
diff --git a/sdk/client.go b/sdk/client.go
index d636928..e638a59 100644
--- a/sdk/client.go
+++ b/sdk/client.go
@@ -1,6 +1,7 @@
 package sdk
 
 import (
+	"bytes"
 	"context"
 	"crypto/tls"
 	"fmt"
@@ -11,6 +12,7 @@ import (
 	"golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/utils"
 	"net"
 	"net/http"
+	"net/http/httputil"
 	"net/url"
 	"os"
 	"regexp"
@@ -91,6 +93,16 @@ func (client *Client) InitWithAccessKey(accessKeyId, accessKeySecret, accessKeyF
 	return client.InitWithOptions(config, credential)
 }
 
+func (client *Client) InitWithStsToken(accessKeyId, accessKeySecret, accessKeyFrom string) (err error) {
+	config := client.InitWithConfig()
+	credential := &credentials.StdTokenCredential{
+		AccessKeyId:     accessKeyId,
+		AccessKeySecret: accessKeySecret,
+		AccessKeyFrom:   accessKeyFrom,
+	}
+	return client.InitWithOptions(config, credential)
+}
+
 func (client *Client) InitWithOptions(config *Config, credential auth.Credential) (err error) {
 	client.httpClient = &http.Client{}
 	client.config = config
@@ -227,8 +239,10 @@ func (client *Client) DoActionWithSigner(request requests.AcsRequest, response r
 		client.httpClient.Transport = trans
 	}
 
-	var httpResponse *http.Response
+	dump, err := httputil.DumpRequest(httpRequest, true)
+	debug("client %s", bytes.NewBuffer(dump).String())
 
+	var httpResponse *http.Response
 	httpResponse, err = hookDo(client.httpClient.Do)(httpRequest)
 	if err != nil {
 		return
@@ -285,8 +299,6 @@ func (client *Client) buildRequestWithSigner(request requests.AcsRequest, signer
 	userAgent := DefaultUserAgent
 	httpRequest.Header.Set("User-Agent", userAgent)
 
-	debug("%s", request.GetStringToSign())
-	debug("%s", httpRequest.Method)
 	return
 }
 
diff --git a/sdk/requests/request.go b/sdk/requests/request.go
index 437fb73..67ee426 100644
--- a/sdk/requests/request.go
+++ b/sdk/requests/request.go
@@ -202,8 +202,8 @@ func defaultBaseRequest() (request *baseRequest) {
 		Method:       GET,
 		QueryParams:  make(map[string]string),
 		Headers: map[string]string{
-			"gr-sdk-client":      "golang/1.14",
-			"gr-sdk-invoke-type": "normal",
+			"Gr-Sdk-Client":      "golang/1.14",
+			"Gr-Sdk-Invoke-Type": "normal",
 			"Accept-Encoding":    Json,
 		},
 		FormParams: make(map[string]string),
diff --git a/services/jedi/send_sms.go b/services/jedi/send_sms.go
index d4ee5da..5584423 100644
--- a/services/jedi/send_sms.go
+++ b/services/jedi/send_sms.go
@@ -7,10 +7,9 @@ import (
 
 type SendSmsRequest struct {
 	*requests.RpcRequest
-	User     string `position:"Query" field:"user" default:"" `
-	Code     string `position:"Query" field:"code" default:"" `
-	Params   string `position:"Query" field:"params" default:"" `
-	TestBody string `position:"Body" field:"test_body" default:"2121" `
+	User   string `position:"Query" field:"user" default:"" `
+	Code   string `position:"Query" field:"code" default:"" `
+	Params string `position:"Query" field:"params" default:"" `
 }
 
 type SendSmsResponseData struct {
diff --git a/services/jedi/test_demo.go b/services/jedi/test_demo.go
index 8fa4cfa..e2ede2c 100644
--- a/services/jedi/test_demo.go
+++ b/services/jedi/test_demo.go
@@ -7,15 +7,16 @@ import (
 
 type DemoTestRequest struct {
 	*requests.RpcRequest
-	Param1 string `position:"Query" field:"param_1" default:"" `
-	Param2 int    `position:"Query" field:"param_2" default:"10086" `
-	Param3 bool   `position:"Query" field:"param_3" default:"false" `
+	Param1    string `position:"Query" field:"param_1" default:"" `
+	Param2    int    `position:"Query" field:"param_2" default:"10086" `
+	Param3    bool   `position:"Query" field:"param_3" default:"false" `
+	ParamBody string `position:"Body" field:"param_body" default:"foobar" `
 }
 
 func CreateDemoTestRequest() (req *DemoTestRequest) {
 	req = &DemoTestRequest{RpcRequest: &requests.RpcRequest{}}
 	req.InitWithApiInfo(HOST, VERSION, "/api/sms/Index")
-	req.Method = requests.GET
+	req.Method = requests.POST
 	return
 }