public override async Task <bool> Attempt(string url)
{
try
{
var cache = ApiResponseCache <T> .Create(url);
var requestInfo = new RequestInfo(ApiClient)
{
HttpMethod = "GET"
};
Result = await requestInfo.TrySend <T>();
if (requestInfo.Error == null)
{
await cache.Update(requestInfo.ResponseText);
return(true);
}
else
{
Error = requestInfo.Error;
}
}
catch (Exception exception)
{
Error = exception;
Log.For(this).Error(exception);
}
return(false);
}
public override async Task <bool> Attempt(string url)
{
var cache = ApiResponseCache <T> .Create(url);
if (!await cache.HasValidValue(CacheAge))
{
Error = new Exception("No valid cache is available.");
return(false);
}
Result = cache.Data;
if (!Silent && FallBackEventPolicy == ApiFallBackEventPolicy.Raise)
{
await FallBackEvent.Raise(new FallBackEvent
{
Url = url,
CacheAge = cache.Age,
FriendlyMessage = $"Failed to get fresh results from {url.AsUri().Host}. Using the latest cache from {cache.Age.ToNaturalTime(1)} ago."
});
}
return(true);
}
/// <summary> /// Deletes the cached Get API result for the specified API url. /// </summary> public Task DisposeCache <TResponse>(string getApiUrl) => ApiResponseCache <TResponse> .Create(getApiUrl).Delete();