How can I cache the response of API calls in Flutter for a month, and then refresh the cache at the beginning of each month?

I am practicing my API calls in Flutter. Now, I want to implement caching for these API calls on a monthly basis. The caching process should occur initially when the JSON data is fetched for the first time. Then, from the beginning to the end of each month, the cached data should be used. At the start of a new month, the cache should be refreshed with updated JSON data. How can I achieve this?

I am using SQFlite. But any other database solution is welcome here.

class PrayerTimesApi {
  static Future<void> fetchAndStorePrayerTimes() async {
    String url = 'example.com';

    var response = await http.post(
      Uri.parse(url),
      headers: <String, String>{
        'Content-Type': 'application/json; charset=UTF-8',
      },
    );

    if (response.statusCode == 200) {
      Map<String, dynamic> responseData = jsonDecode(response.body);
      List<dynamic> prayerTimesData = responseData['prayerTimes'];

    
      String currentDate =
          DateFormat('EEEE dd MMMM yyyy').format(DateTime.now());

      Map<String, dynamic>? currentPrayerTimes;
      for (var prayerTime in prayerTimesData) {
        if (prayerTime['date'] == currentDate) {
          currentPrayerTimes = prayerTime;
          break;
        }
      }

      if (currentPrayerTimes != null) {
        
        PrayerTimes prayerTimes = PrayerTimes.fromJson(currentPrayerTimes);

        await LocalDatabase.insertPrayerTimes(prayerTimes);
      } else {
        throw 'Not available for $currentDate.';
      }
    } else {
      throw 'Failed to fetch.';
    }
  }
}