仅针对IOS应用IP地址转换的IPv6升级

Question

您好，我升级旧项目，仅支持Apple的IP6要求。我有这些硬编码的点号IP。我们如何将其转移到域名以满足新的要求。任何帮助都非常感激。感谢

//Development
static NSString *const SINGPOST_UAT_BASE_URL = @"https://uatesb1.singpost.com";
static NSString *const CMS_UAT_BASE_URL = @"http://27.109.106.170/mobile2/";
static NSString *const CMS_UAT_BASE_URL_V4 = @"http://27.109.106.170/mobile2/v5/";
static NSString *const AD_UAT_BASE_URL = @"https://uat.mysam.sg/restful-services/advertisementServices/";

//Production
static NSString *const SINGPOST_PRODUCTION_BASE_URL = @"https://prdesb1.singpost.com";
static NSString *const CMS_PRODUCTION_BASE_URL = @"http://mobile.singpost.com/mobile2/";
static NSString *const CMS_PRODUCTION_BASE_URL_V4 = @"http://mobile.singpost.com/mobile2/v5/";
static NSString *const AD_PRODUCTION_BASE_URL = @"https://www.mysam.sg/restful-services/advertisementServices/";