public async Task <(ResponseCode code, List <Part> result)> SearchPartsAsync(string keyword)
{
IPartsServiceAPI api = RestService.For <IPartsServiceAPI>(Helpers.Constants.BaseUrl);
var pollyResult = await Policy.ExecuteAndCaptureAsync(async() => await api.SearchParts(keyword, Constants.ApiManagementKey));
if (pollyResult.Result != null)
{
return(ResponseCode.Success, pollyResult.Result);
}
return(ResponseCode.Error, null);
}
public async Task <(ResponseCode code, List <Part> result)> SearchPartsAsync(string keyword)
{
IPartsServiceAPI api = GetManagedApiService <IPartsServiceAPI>();
var pollyResult = await Policy.ExecuteAndCaptureAsync(async() => await api.SearchParts(keyword));
if (pollyResult.Result != null)
{
return(ResponseCode.Success, pollyResult.Result);
}
return(ResponseCode.Error, null);
}
public async Task <(ResponseCode code, List <Part> result)> GetPartsAsync(bool force = false)
{
// Handle online/offline scenario
if (Connectivity.NetworkAccess != NetworkAccess.Internet && Barrel.Current.Exists(CacheKey))
{
// If no connectivity, we'll return the cached list.
return(ResponseCode.NotConnected, Barrel.Current.Get <List <Part> >(CacheKey));
}
// If the data isn't too old, we'll go ahead and return it rather than call the backend again.
if (!force && !Barrel.Current.IsExpired(CacheKey) && Barrel.Current.Exists(CacheKey))
{
var parts = Barrel.Current.Get <IEnumerable <Part> >(CacheKey);
return(ResponseCode.Success, parts.ToList());
}
try
{
IPartsServiceAPI api = RestService.For <IPartsServiceAPI>(Helpers.Constants.BaseUrl);
// Use Polly to handle retrying
var pollyResult = await Policy.ExecuteAndCaptureAsync(async() => await api.GetParts(Constants.ApiManagementKey));
if (pollyResult.Result != null)
{
// Save parts into the cache
Barrel.Current.Add(CacheKey, pollyResult.Result, TimeSpan.FromMinutes(5));
return(ResponseCode.Success, pollyResult.Result);
}
}
catch (UriFormatException)
{
// No or invalid BaseUrl set in Constants.cs
return(ResponseCode.ConfigurationError, null);
}
catch (ArgumentException ex)
{
//Lets report this exception to App Center
Crashes.TrackError(ex);
// Backend not found at specified BaseUrl in Constants.cs or call limit reached
return(ResponseCode.BackendNotFound, null);
}
catch (Exception)
{
// Everything else
return(ResponseCode.Error, null);
}
return(ResponseCode.Error, null);
}
