diff --git a/main/main.c b/main/main.c
index 7cb43ee..78ffa77 100644
--- a/main/main.c
+++ b/main/main.c
@@ -103,24 +103,14 @@ void process_setPosition(RxContext_t *context, cJSON *rxjson) {
   construct_set_position_packet_and_report(context->index, setPosition_code);
 }
 
-void process_getStatus(cJSON *rxjson) {
-  int index = 0;
-  if (cJSON_IsNumber(cJSON_GetObjectItem(rxjson, "index"))) {
-    index = cJSON_GetNumberValue(cJSON_GetObjectItem(rxjson, "index"));
-  }
+void process_getStatus(RxContext_t *context, cJSON *rxjson) {
   double motor_position = motor_get_position_degree();
-  construct_get_status_packet_and_report(index, motor_position);
+  construct_get_status_packet_and_report(context->index, motor_position);
 }
 
-void process_setMotorCurrentSize(cJSON *rxjson) {
-  int index = 0;
-  if (cJSON_IsNumber(cJSON_GetObjectItem(rxjson, "index"))) {
-    index = cJSON_GetNumberValue(cJSON_GetObjectItem(rxjson, "index"));
-  }
-
+void process_setMotorCurrentSize(RxContext_t *context, cJSON *rxjson) {
   motor_set_zero_point();
-
-  construct_set_motorCurrentSize_packet_and_report(index);
+  construct_set_motorCurrentSize_packet_and_report(context->index);
 }
 
 void processrxjson(cJSON *rxjson) {
@@ -140,9 +130,9 @@ void processrxjson(cJSON *rxjson) {
   if (strcmp(rxcontext.order, "setPosition") == 0) {
     process_setPosition(&rxcontext, rxjson);
   } else if (strcmp(rxcontext.order, "getStatus") == 0) {
-    process_getStatus(rxjson);
+    process_getStatus(&rxcontext, rxjson);
   } else if (strcmp(rxcontext.order, "setMotorCurrentSize") == 0) {
-    process_setMotorCurrentSize(rxjson);
+    process_setMotorCurrentSize(&rxcontext, rxjson);
   }
 }