Parse sync response from server

esp32_device/main/sync_response.h

@@ -0,0 +1,39 @@
+/**
+ * Synchronisation response
+ */
+
+#pragma once
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <cJSON.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    typedef struct sync_response
+    {
+        size_t len;
+        bool relays[];
+    } sync_response;
+
+    /**
+     * Decode synchronize response from server
+     */
+    sync_response *sync_response_parse(cJSON *res);
+
+    /**
+     * Print synchronize reponse content
+     */
+    void sync_response_print(sync_response *res);
+
+    /**
+     * Free memory allocated for synchronize response
+     */
+    void sync_response_free(sync_response *res);
+
+#ifdef __cplusplus
+}
+#endif