private async Task <TValue> FetchAndAddToCache <TValue>(
string key,
Func <string, Task <TValue> > fetchFactory)
{
using (await _cacheLock.LockAsync(key).ConfigureAwait(false))
{
var result = await Provider.TryGet <TValue>(key).ConfigureAwait(false);
if (result.Succeeded)
{
return(result.Value);
}
TValue value = await fetchFactory(key).ConfigureAwait(false);
await Provider.Set(key, value).ConfigureAwait(false);
return(value);
}
}
