public Task <T> GetAsync <T>(string key)
{
if (string.IsNullOrEmpty(key))
{
throw new ArgumentException("Key MUST have a value");
}
var tcs = new TaskCompletionSource <T>();
string filePath = Path.Combine(_folderPath, GenerateStoredKey(key, typeof(T)));
if (File.Exists(filePath))
{
try
{
string obj = File.ReadAllText(filePath);
tcs.SetResult(NewtonsoftJsonSerializer.Instance.Deserialize <T>(DataProtection.Unprotect(obj)));
}
catch (Exception ex)
{
tcs.SetException(ex);
}
}
else
{
tcs.SetResult(default(T));
}
return(tcs.Task);
}
public Task StoreAsync <T>(string key, T value)
{
if (string.IsNullOrEmpty(key))
{
throw new ArgumentException("Key MUST have a value");
}
string serialized = NewtonsoftJsonSerializer.Instance.Serialize(value);
string filePath = Path.Combine(_folderPath, GenerateStoredKey(key, typeof(T)));
File.WriteAllText(filePath, DataProtection.Protect(serialized));
return(TaskEx.Delay(0));
}