/// <summary>
/// Führt eine POST-Anfrage auf dem Server aus.
/// </summary>
/// <returns></returns>
public async Task <object> PostAsync(Type type)
{
HttpClient client = await GetHttpClientAsync();
Uri apiEndpoint = ServerAddress;
try
{
HttpResponseMessage response = await client.PostAsync(apiEndpoint, Body);
await response.GetContentAsync(type);
}
catch (Exception ex)
{
var context = new EndpointFailedContext(apiEndpoint, ex);
await RunEndpointEventsAsync(context);
if (!context.IsHandled)
{
throw context.Error;
}
}
return(null);
}
/// <summary>
/// Wenn <see cref="EndpointFailedContext"/> angegeben sind, dann ausführen.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
private async Task RunEndpointEventsAsync(EndpointFailedContext context)
{
if (_client.Options.EndpointEvents?.OnRequestFailed != null)
{
await _client.Options.EndpointEvents.OnRequestFailed(context);
}
if (!context.IsHandled)
{
throw context.Error;
}
}
/// <summary>
/// Führt eine DELETE-Anfrage auf dem Server aus.
/// </summary>
/// <returns></returns>
public async Task DeleteAsync()
{
HttpClient client = await GetHttpClientAsync();
Uri apiEndpoint = ServerAddress;
try
{
HttpResponseMessage response = await client.DeleteAsync(apiEndpoint);
await response.GetContentAsync();
}
catch (Exception ex)
{
var context = new EndpointFailedContext(apiEndpoint, ex);
await RunEndpointEventsAsync(context);
if (!context.IsHandled)
{
throw context.Error;
}
}
}
/// <summary>
/// Wird ausgeführt, wenn ein Anfrage an den Server fehlschlägt.
/// </summary>
/// <param name="context">Ein <see cref="EndpointFailedContext"/> mit weiteren Informationen.</param>
/// <returns></returns>
private Task OnRequestFailed(EndpointFailedContext context)
{
MessageBox.Show(context.Error.Message, "Request Error", MessageBoxButton.OK, MessageBoxImage.Error);
context.Handled();
return(Task.CompletedTask);
}
