private CallInvoker CreateInvoker(EntryKey key)
{
var(name, type) = (key.Name, key.Type);
var scope = _scopeFactory.CreateScope();
var services = scope.ServiceProvider;
try
{
var httpClientFactoryOptions = _httpClientFactoryOptionsMonitor.Get(name);
if (httpClientFactoryOptions.HttpClientActions.Count > 0)
{
throw new InvalidOperationException($"The ConfigureHttpClient method is not supported when creating gRPC clients. Unable to create client with name '{name}'.");
}
var clientFactoryOptions = _grpcClientFactoryOptionsMonitor.Get(name);
var httpHandler = _messageHandlerFactory.CreateHandler(name);
if (httpHandler == null)
{
throw new ArgumentNullException(nameof(httpHandler));
}
var channelOptions = new GrpcChannelOptions();
channelOptions.HttpHandler = httpHandler;
channelOptions.LoggerFactory = _loggerFactory;
channelOptions.ServiceProvider = services;
if (clientFactoryOptions.ChannelOptionsActions.Count > 0)
{
foreach (var applyOptions in clientFactoryOptions.ChannelOptionsActions)
{
applyOptions(channelOptions);
}
}
var address = clientFactoryOptions.Address;
if (address == null)
{
throw new InvalidOperationException($@"Could not resolve the address for gRPC client '{name}'. Set an address when registering the client: services.AddGrpcClient<{type.Name}>(o => o.Address = new Uri(""https://localhost:5001""))");
}
var channel = GrpcChannel.ForAddress(address, channelOptions);
var httpClientCallInvoker = channel.CreateCallInvoker();
var resolvedCallInvoker = GrpcClientFactoryOptions.BuildInterceptors(
httpClientCallInvoker,
services,
clientFactoryOptions,
InterceptorScope.Channel);
return(resolvedCallInvoker);
}
catch
{
// If something fails while creating the handler, dispose the services.
scope?.Dispose();
throw;
}
}
protected override void Options(GrpcClientFactoryOptions options)
{
options.Address = new Uri($"https://{Target.GRPC_CHANNEL_IP}:{Target.GRPC_CHANNEL_PORT}");
options.ChannelOptionsActions.Add(chOptions => {
// Return "true" to allow certificates that are untrusted/invalid
chOptions.HttpHandler = new HttpClientHandler {
ServerCertificateCustomValidationCallback = HttpClientHandler.DangerousAcceptAnyServerCertificateValidator
};
});
}
public override TClient CreateClient <
#if NET5_0_OR_GREATER
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)]
#endif
TClient>(string name) where TClient : class
{
var defaultClientActivator = _serviceProvider.GetService <DefaultClientActivator <TClient> >();
if (defaultClientActivator == null)
{
throw new InvalidOperationException($"No gRPC client configured with name '{name}'.");
}
var callInvoker = _callInvokerFactory.CreateInvoker(name, typeof(TClient));
var clientFactoryOptions = _grpcClientFactoryOptionsMonitor.Get(name);
var resolvedCallInvoker = GrpcClientFactoryOptions.BuildInterceptors(
callInvoker,
_serviceProvider,
clientFactoryOptions,
InterceptorScope.Client);
#pragma warning disable CS0618 // Type or member is obsolete
if (clientFactoryOptions.Interceptors.Count != 0)
{
resolvedCallInvoker = resolvedCallInvoker.Intercept(clientFactoryOptions.Interceptors.ToArray());
}
#pragma warning restore CS0618 // Type or member is obsolete
if (clientFactoryOptions.CallOptionsActions.Count != 0)
{
resolvedCallInvoker = new CallOptionsConfigurationInvoker(resolvedCallInvoker, clientFactoryOptions.CallOptionsActions, _serviceProvider);
}
if (clientFactoryOptions.Creator != null)
{
var c = clientFactoryOptions.Creator(resolvedCallInvoker);
if (c is TClient client)
{
return(client);
}
else if (c == null)
{
throw new InvalidOperationException("A null instance was returned by the configured client creator.");
}
throw new InvalidOperationException($"The {c.GetType().FullName} instance returned by the configured client creator is not compatible with {typeof(TClient).FullName}.");
}
else
{
return(defaultClientActivator.CreateClient(resolvedCallInvoker));
}
}
public void Configure(string name, GrpcClientFactoryOptions client)
{
var options = _options.Get(name);
if (options.Address != null)
{
var address = new Regex(@"^(?!\w+:\/\/)")
.Replace(options.Address, "http://");
client.Address = new Uri(address);
}
client.Interceptors.AddCorrelationId(_services);
if (options.RetryCount != null)
{
client.Interceptors.AddExponentialBackoff(_services,
options.RetryCount.Value, options.RetryInterval, options.RetryForever);
}
}
public CallInvoker CreateCallInvoker(HttpClient httpClient, string name, GrpcClientFactoryOptions clientFactoryOptions)
{
if (httpClient == null)
{
throw new ArgumentNullException(nameof(httpClient));
}
var channelOptions = new GrpcChannelOptions();
channelOptions.HttpClient = httpClient;
channelOptions.LoggerFactory = _loggerFactory;
if (clientFactoryOptions.ChannelOptionsActions.Count > 0)
{
foreach (var applyOptions in clientFactoryOptions.ChannelOptionsActions)
{
applyOptions(channelOptions);
}
}
var address = clientFactoryOptions.Address ?? httpClient.BaseAddress;
if (address == null)
{
throw new InvalidOperationException($"Could not resolve the address for gRPC client '{name}'.");
}
var channel = GrpcChannel.ForAddress(address, channelOptions);
var httpClientCallInvoker = channel.CreateCallInvoker();
var resolvedCallInvoker = clientFactoryOptions.Interceptors.Count == 0
? httpClientCallInvoker
: httpClientCallInvoker.Intercept(clientFactoryOptions.Interceptors.ToArray());
return(resolvedCallInvoker);
}
private CallInvoker CreateInvoker(EntryKey key)
{
var(name, type) = (key.Name, key.Type);
var scope = _scopeFactory.CreateScope();
var services = scope.ServiceProvider;
try
{
var httpClientFactoryOptions = _httpClientFactoryOptionsMonitor.Get(name);
if (httpClientFactoryOptions.HttpClientActions.Count > 0)
{
throw new InvalidOperationException($"The ConfigureHttpClient method is not supported when creating gRPC clients. Unable to create client with name '{name}'.");
}
var clientFactoryOptions = _grpcClientFactoryOptionsMonitor.Get(name);
var httpHandler = _messageHandlerFactory.CreateHandler(name);
if (httpHandler == null)
{
throw new ArgumentNullException(nameof(httpHandler));
}
var channelOptions = new GrpcChannelOptions();
channelOptions.HttpHandler = httpHandler;
channelOptions.LoggerFactory = _loggerFactory;
channelOptions.ServiceProvider = services;
if (clientFactoryOptions.ChannelOptionsActions.Count > 0)
{
foreach (var applyOptions in clientFactoryOptions.ChannelOptionsActions)
{
applyOptions(channelOptions);
}
}
var address = clientFactoryOptions.Address;
if (address == null)
{
throw new InvalidOperationException($@"Could not resolve the address for gRPC client '{name}'. Set an address when registering the client: services.AddGrpcClient<{type.Name}>(o => o.Address = new Uri(""https://*****:*****@"client.AddCallCredentials((context, metadata) => {}).ConfigureChannel(o => o.UnsafeUseInsecureChannelCallCredentials = true)");
}
var channel = GrpcChannel.ForAddress(address, channelOptions);
var httpClientCallInvoker = channel.CreateCallInvoker();
var resolvedCallInvoker = GrpcClientFactoryOptions.BuildInterceptors(
httpClientCallInvoker,
services,
clientFactoryOptions,
InterceptorScope.Channel);
return(resolvedCallInvoker);
}
catch
{
// If something fails while creating the handler, dispose the services.
scope?.Dispose();
throw;
}
}
protected abstract void Options(GrpcClientFactoryOptions options);
public CallInvoker CreateCallInvoker(HttpMessageHandler httpHandler, string name, Type type, GrpcClientFactoryOptions clientFactoryOptions)
{
if (httpHandler == null)
{
throw new ArgumentNullException(nameof(httpHandler));
}
var channelOptions = new GrpcChannelOptions();
channelOptions.HttpHandler = httpHandler;
channelOptions.LoggerFactory = _loggerFactory;
if (clientFactoryOptions.ChannelOptionsActions.Count > 0)
{
foreach (var applyOptions in clientFactoryOptions.ChannelOptionsActions)
{
applyOptions(channelOptions);
}
}
var address = clientFactoryOptions.Address;
if (address == null)
{
throw new InvalidOperationException($@"Could not resolve the address for gRPC client '{name}'. Set an address when registering the client: services.AddGrpcClient<{type.Name}>(o => o.Address = new Uri(""https://localhost:5001""))");
}
var channel = GrpcChannel.ForAddress(address, channelOptions);
var httpClientCallInvoker = channel.CreateCallInvoker();
var resolvedCallInvoker = clientFactoryOptions.Interceptors.Count == 0
? httpClientCallInvoker
: httpClientCallInvoker.Intercept(clientFactoryOptions.Interceptors.ToArray());
return(resolvedCallInvoker);
}
protected virtual void ConfigureGrpcClient(GrpcClientFactoryOptions options)
{
}
