- fix elm callback sign error(it's different from call elm API).

platform/elmapi/elmapi.go

@@ -74,8 +74,14 @@ func (e *ELMAPI) signParamsMap(mapData map[string]interface{}, prefix string) st
 	keyValues := make([]string, 0)
 	for k, v := range mapData {
 		if k != signKey {
+			vStr := ""
+			if prefix == "" { // callback sign
+				vStr = fmt.Sprint(v)
+			} else { // call sign
 				vBytes := utils.MustMarshal(v)
-			keyValues = append(keyValues, k+"="+string(vBytes))
+				vStr = string(vBytes)
+			}
+			keyValues = append(keyValues, k+"="+vStr)
 		}
 	}
 

platform/elmapi/elmapi_test.go

@@ -15,7 +15,12 @@ var (
 func init() {
 	logger, _ := zap.NewDevelopment()
 	sugarLogger = logger.Sugar()
-	elmapi = NewELMAPI("bab2a27f99562f394b411dbb9a6214da", "KLRDcOZGrk", "1fc221f8265506531da36fb613d5f5ad673f2e9a", sugarLogger, true)
+
+	// sandbox
+	elmapi = NewELMAPI("2d2b583447b04b6bba5a6f3faed3559b", "RwT214gAsS", "56afff4b9ebd8a7eb532d18fa33f17be57f9b9db", sugarLogger, false)
+
+	// prod
+	// elmapi = NewELMAPI("bab2a27f99562f394b411dbb9a6214da", "KLRDcOZGrk", "1fc221f8265506531da36fb613d5f5ad673f2e9a", sugarLogger, true)
 }
 
 func TestTest(t *testing.T) {
@@ -46,3 +51,11 @@ func TestGetOrder(t *testing.T) {
 		}
 	}
 }
+
+func TestCallbackSign(t *testing.T) {
+	jsonStr := `{"requestId":"200016348669063447","type":18,"appId":78247922,"message":"{\"orderId\":\"3024923917769149510\",\"state\":\"settled\",\"shopId\":157492364,\"updateTime\":1529465510,\"role\":1}","shopId":157492364,"timestamp":1529465510255,"signature":"D65F917D93B4F599B85486C799599141","userId":336072266322770688}`
+	msg, response := elmapi.GetMsgFromData([]byte(jsonStr))
+	if response != nil || msg == nil {
+		t.Fatal("Something wrong")
+	}
+}