private async Task <RepositoryDescription> GetRepositoryDescription(ServiceInvocationContext context)
{
// We use ConfigureAwait(false) to prevent .NET from trying to synchronize back to our current Sync Context (UI Thread/HttpContext/etc)
// when continuing from await. We don't care about Sync Context, so this saves the perf hit of syncing back. Our caller will still
// sync back to their current Sync Context when they await us, so this doesn't affect them.
using (context.Trace.EnterExit())
{
try
{
// Invoke the request
var url = new Uri("/", UriKind.Relative);
var response = await context.GetAsync(url, context.CancellationToken)
.ConfigureAwait(continueOnCapturedContext: false);
context.CancellationToken.ThrowIfCancellationRequested();
response.EnsureSuccessStatusCode();
// Parse the response as JSON
var json = JObject.Parse(await response.Content.ReadAsStringAsync()
.ConfigureAwait(continueOnCapturedContext: false));
// Load the json in to a result
return(RepositoryDescription.FromJson(json, context.Trace, context.ResolveUrl(url)));
}
catch (Exception ex)
{
context.Trace.Error(ex);
throw;
}
}
}
