public async Task <IDictionary <string, Backend> > GetBackendsAsync(IConfigErrorReporter errorReporter, CancellationToken cancellation)
{
var backends = await _backendsRepo.GetBackendsAsync(cancellation) ?? new Dictionary <string, Backend>(StringComparer.Ordinal);
var configuredBackends = new Dictionary <string, Backend>(StringComparer.Ordinal);
// The IBackendsRepo provides a fresh snapshot that we need to reconfigure each time.
foreach (var(id, backend) in backends)
{
try
{
if (id != backend.Id)
{
errorReporter.ReportError(ConfigErrors.ConfigBuilderBackendIdMismatch, id,
$"The backend Id '{backend.Id}' and its lookup key '{id}' do not match.");
continue;
}
foreach (var filter in _filters)
{
await filter.ConfigureBackendAsync(backend, cancellation);
}
ValidateSessionAffinity(errorReporter, id, backend);
configuredBackends[id] = backend;
}
catch (Exception ex)
{
errorReporter.ReportError(ConfigErrors.ConfigBuilderBackendException, id, "An exception was thrown from the configuration callbacks.", ex);
}
}
return(configuredBackends);
}
public async Task <IDictionary <string, Backend> > GetBackendsAsync(IConfigErrorReporter errorReporter, CancellationToken cancellation)
{
var backends = await _backendsRepo.GetBackendsAsync(cancellation) ?? new Dictionary <string, Backend>(StringComparer.Ordinal);
var configuredBackends = new Dictionary <string, Backend>(StringComparer.Ordinal);
// The IBackendsRepo provides a fresh snapshot that we need to reconfigure each time.
foreach (var(id, backend) in backends)
{
try
{
foreach (var filter in _filters)
{
await filter.ConfigureBackendAsync(id, backend, cancellation);
}
configuredBackends[id] = backend;
}
catch (Exception ex)
{
errorReporter.ReportError(ConfigErrors.ConfigBuilderBackendException, id, "An exception was thrown from the configuration callbacks.", ex);
}
}
return(configuredBackends);
}
public async Task <Result <DynamicConfigRoot> > BuildConfigAsync(IConfigErrorReporter errorReporter, CancellationToken cancellation)
{
Contracts.CheckValue(errorReporter, nameof(errorReporter));
var backends = await _backendsRepo.GetBackendsAsync(cancellation) ?? new Dictionary <string, Backend>(StringComparer.Ordinal);
var routes = await GetRoutesAsync(errorReporter, cancellation);
var config = new DynamicConfigRoot
{
Backends = backends,
Routes = routes,
};
return(Result.Success(config));
}