add: token in env var

src/utils.cpp

@@ -54,3 +54,15 @@ int get_article_data(std::string& str, unsigned int& quantity, float& price)
 
     return 0;
 }
+
+std::string get_token(char** av, char** env)
+{
+    if (av[1] != NULL)
+        return av[1];
+    for (size_t i = 0; env[i] != NULL; ++i)
+    {
+        if (std::strncmp("BOT_TOKEN", env[i], 9) == 0)
+            return env[i] + 10;
+    }
+    return BOT_TOKEN;
+}