public async static Task <bool> GetContactsFromWeb(bool isUpdated)
{
try
{
//Если необходимо ошибку вызвать
//throw new HttpListenerException();
string json1;
string json2;
string json3;
using (WebClient client = new WebClient())
{
var baseAddress = "https://raw.githubusercontent.com/Newbilius/ElbaMobileXamarinDeveloperTest/master/json/";
json1 = client.DownloadString($"{baseAddress}generated-01.json");
json2 = client.DownloadString($"{baseAddress}generated-02.json");
json3 = client.DownloadString($"{baseAddress}generated-03.json");
}
// using newtonsoft json.net - use http://json2csharp.com/ to verfiy
// that your C# model class actually matches your json
var data = JsonConvert.DeserializeObject <List <Contact> >(json1);
data.AddRange(JsonConvert.DeserializeObject <List <Contact> >(json2));
data.AddRange(JsonConvert.DeserializeObject <List <Contact> >(json3));
_db.ClearDbAsync();
foreach (Contact contact in data)
{
var eduId = Guid.NewGuid().ToString();
contact.EducationPeriodId = eduId;
contact.EducationPeriod = contact.EducationPeriod;
contact.EducationPeriod.Id = eduId;
}
await _db.SaveAllItemsAsync(data.Select(x => x.EducationPeriod), isUpdated);
await _db.SaveAllItemsAsync(data, isUpdated);
ContactList = data.OrderBy(x => x.Name).ToList();
return(true);
}
catch
{
_db.ClearDbAsync();
foreach (Contact contact in ContactList)
{
var eduId = Guid.NewGuid().ToString();
contact.EducationPeriodId = eduId;
contact.EducationPeriod = contact.EducationPeriod;
contact.EducationPeriod.Id = eduId;
}
await _db.SaveAllItemsAsync(ContactList.Select(x => x.EducationPeriod), isUpdated);
await _db.SaveAllItemsAsync(ContactList, isUpdated);
return(false);
}
}
