diff --git a/platform/elmapi/callback.go b/platform/elmapi/callback.go
new file mode 100644
index 00000000..5e5c7dfc
--- /dev/null
+++ b/platform/elmapi/callback.go
@@ -0,0 +1,25 @@
+package elmapi
+
+const (
+	OrderEffective    = 10
+	MerchantValid     = 12
+	OrderCanceled     = 14
+	MerchantInvalid   = 15
+	OrderForceInvalid = 17
+	OrderFinished     = 18
+)
+
+type ELMCallbackResponse struct {
+	Message string `json:"message"`
+}
+
+type ELMCallbackMsg struct {
+	AppId     int    `json:"appId"`
+	RequestId string `json:"requestId"`
+	Type      int    `json:"type"`
+	Message   string `json:"message"`
+	ShopId    int    `json:"shopId"`
+	Timestamp int64  `json:"timestamp"`
+	UserId    int64  `json:"userId"`
+	Signature string `json:"signature"`
+}
diff --git a/platform/elmapi/elmapi.go b/platform/elmapi/elmapi.go
index edd27f46..4bb630e2 100644
--- a/platform/elmapi/elmapi.go
+++ b/platform/elmapi/elmapi.go
@@ -2,7 +2,6 @@ package elmapi
 
 import (
 	"crypto/md5"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"io/ioutil"
@@ -37,7 +36,7 @@ var (
 
 type ELMResult struct {
 	Id     string
-	Result map[string]interface{}
+	Result interface{}
 	Error  map[string]interface{}
 }
 
@@ -85,7 +84,7 @@ func (e *ELMAPI) signParams(action string, payload *ELMPayload) string {
 	}
 	for _, data := range allData {
 		for k, v := range data {
-			vBytes, _ := json.Marshal(v)
+			vBytes := utils.MustMarshal(v)
 			keyValues = append(keyValues, k+"="+string(vBytes))
 		}
 	}
@@ -102,7 +101,7 @@ func (e *ELMAPI) AccessELM(action string, params map[string]interface{}) (*ELMRe
 	}
 	metas := map[string]interface{}{
 		"app_key":   e.appKey,
-		"timestamp": int(utils.GetCurTimestamp()),
+		"timestamp": utils.GetCurTimestamp(),
 	}
 
 	payload := &ELMPayload{
@@ -115,11 +114,8 @@ func (e *ELMAPI) AccessELM(action string, params map[string]interface{}) (*ELMRe
 	}
 
 	payload.Signature = e.signParams(action, payload)
-	dataBytes, err := json.Marshal(payload)
-	if err != nil {
-		e.sugarLogger.Errorf("Error when marshal %v, error:%v", payload, err)
-		return nil, err
-	}
+	dataBytes := utils.MustMarshal(payload)
+
 	dataStr := string(dataBytes)
 	exceedLimitRetryCount := 0
 	systemErrorRetryCount := 0
@@ -162,11 +158,10 @@ func (e *ELMAPI) AccessELM(action string, params map[string]interface{}) (*ELMRe
 
 		jsonResult1, err := utils.HttpResponse2Json(response)
 		resultError, _ := jsonResult1["error"].(map[string]interface{})
-		result, _ := jsonResult1["result"].(map[string]interface{})
 		jsonResult := &ELMResult{
 			Id:     jsonResult1["id"].(string),
 			Error:  resultError,
-			Result: result,
+			Result: jsonResult1["result"],
 		}
 		if err != nil {
 			e.sugarLogger.Warnf("HttpResponse2Json return:%v", err)
diff --git a/platform/elmapi/elmapi_test.go b/platform/elmapi/elmapi_test.go
index 60c0b63f..814410c2 100644
--- a/platform/elmapi/elmapi_test.go
+++ b/platform/elmapi/elmapi_test.go
@@ -28,10 +28,23 @@ func TestAccessELM(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Error when accessing AccessJDQuery result:%v, error:%v", result, err)
 	} else {
-		userIdNumber := result.Result["userId"].(json.Number)
+		mapResult := result.Result.(map[string]interface{})
+		userIdNumber := mapResult["userId"].(json.Number)
 		userId, err := userIdNumber.Int64()
 		if userId != 336072266326420104 || err != nil {
 			t.Fatalf("userId is not correct:%v", userIdNumber)
 		}
 	}
 }
+
+func TestGetOrder(t *testing.T) {
+	result, err := elmapi.GetOrder("3023582487561731159")
+	if err != nil {
+		t.Fatalf("Error when accessing AccessJDQuery result:%v, error:%v", result, err)
+	} else {
+		shopId := int(utils.MustInterface2Int64(result["shopId"]))
+		if shopId != 157451615 {
+			t.Fatalf("userId is not correct:%v", shopId)
+		}
+	}
+}
diff --git a/platform/elmapi/order.go b/platform/elmapi/order.go
new file mode 100644
index 00000000..cf8921fa
--- /dev/null
+++ b/platform/elmapi/order.go
@@ -0,0 +1,15 @@
+package elmapi
+
+type ELMOrderInfo map[string]interface{}
+
+func (e *ELMAPI) GetOrder(orderId string) (ELMOrderInfo, error) {
+	result, err := e.AccessELM("eleme.order.getOrder", map[string]interface{}{
+		"orderId": orderId,
+	})
+
+	if err == nil {
+		innerResult := ELMOrderInfo(result.Result.(map[string]interface{}))
+		return innerResult, nil
+	}
+	return nil, err
+}
diff --git a/utils/utils.go b/utils/utils.go
index 6c8c15ca..6010f1ab 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -144,6 +144,10 @@ func GetAPIOperator() string {
 	return time.Now().Format("2006-01-02_15:04:05")
 }
 
+func Timestamp2Str(timestamp int64) string {
+	return time.Unix(timestamp/1000, 0).Format("2006-01-02 15:04:05")
+}
+
 func HttpResponse2Json(response *http.Response) (map[string]interface{}, error) {
 	var jsonResult map[string]interface{}
 	bodyData, err := ioutil.ReadAll(response.Body)
@@ -157,3 +161,15 @@ func HttpResponse2Json(response *http.Response) (map[string]interface{}, error)
 	}
 	return jsonResult, nil
 }
+
+func MustInterface2Int64(data interface{}) int64 {
+	dataNumber, ok := data.(json.Number)
+	if !ok {
+		panic(fmt.Sprintf("error when convert:%v", data))
+	}
+	retVal, err := dataNumber.Int64()
+	if err != nil {
+		panic(err.Error())
+	}
+	return retVal
+}