public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IJsonRpcProcessor jsonRpcProcessor, IJsonRpcService jsonRpcService, IJsonRpcLocalStats jsonRpcLocalStats)
{
void SerializeTimeoutException(IJsonRpcService service, Stream resultStream)
{
JsonRpcErrorResponse?error = service.GetErrorResponse(ErrorCodes.Timeout, "Request was canceled due to enabled timeout.");
_jsonSerializer.Serialize(resultStream, error);
}
_jsonSerializer = CreateJsonSerializer();
foreach (JsonConverter converter in jsonRpcService.Converters)
{
_jsonSerializer.RegisterConverter(converter);
}
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseCors("Cors");
app.UseRouting();
IConfigProvider configProvider = app.ApplicationServices.GetService <IConfigProvider>();
IInitConfig initConfig = configProvider.GetConfig <IInitConfig>();
IJsonRpcConfig jsonRpcConfig = configProvider.GetConfig <IJsonRpcConfig>();
IHealthChecksConfig healthChecksConfig = configProvider.GetConfig <IHealthChecksConfig>();
if (initConfig.WebSocketsEnabled)
{
app.UseWebSockets();
app.UseWhen(ctx => ctx.WebSockets.IsWebSocketRequest &&
ctx.Connection.LocalPort == jsonRpcConfig.WebSocketsPort,
builder => builder.UseWebSocketsModules());
}
app.UseEndpoints(endpoints =>
{
if (healthChecksConfig.Enabled)
{
endpoints.MapHealthChecks("/health", new HealthCheckOptions()
{
Predicate = _ => true,
ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse
});
if (healthChecksConfig.UIEnabled)
{
endpoints.MapHealthChecksUI(setup => setup.AddCustomStylesheet(Path.Combine(AppDomain.CurrentDomain.BaseDirectory !, "nethermind.css")));
}
}
});
app.Use(async(ctx, next) =>
{
if (ctx.Request.Method == "GET")
{
await ctx.Response.WriteAsync("Nethermind JSON RPC");
}
if (ctx.Connection.LocalPort == jsonRpcConfig.Port && ctx.Request.Method == "POST")
{
Stopwatch stopwatch = Stopwatch.StartNew();
using StreamReader reader = new StreamReader(ctx.Request.Body, Encoding.UTF8);
string request = await reader.ReadToEndAsync();
using JsonRpcResult result = await jsonRpcProcessor.ProcessAsync(request);
ctx.Response.ContentType = "application/json";
Stream resultStream = jsonRpcConfig.BufferResponses ? new MemoryStream() : ctx.Response.Body;
try
{
if (result.IsCollection)
{
_jsonSerializer.Serialize(resultStream, result.Responses);
}
else
{
_jsonSerializer.Serialize(resultStream, result.Response);
}
if (jsonRpcConfig.BufferResponses)
{
ctx.Response.ContentLength = resultStream.Length;
resultStream.Seek(0, SeekOrigin.Begin);
await resultStream.CopyToAsync(ctx.Response.Body);
}
}
catch (Exception e) when(e.InnerException is OperationCanceledException)
{
SerializeTimeoutException(jsonRpcService, resultStream);
}
catch (OperationCanceledException)
{
SerializeTimeoutException(jsonRpcService, resultStream);
}
finally
{
await ctx.Response.CompleteAsync();
if (jsonRpcConfig.BufferResponses)
{
await resultStream.DisposeAsync();
}
}
if (result.IsCollection)
{
jsonRpcLocalStats.ReportCalls(result.Reports);
jsonRpcLocalStats.ReportCall(new RpcReport("# collection serialization #", stopwatch.ElapsedMicroseconds(), true));
}
else
{
jsonRpcLocalStats.ReportCall(result.Report, stopwatch.ElapsedMicroseconds());
}
}
});
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IJsonRpcProcessor jsonRpcProcessor, IJsonRpcService jsonRpcService, IJsonRpcLocalStats jsonRpcLocalStats, IJsonSerializer jsonSerializer)
{
long SerializeTimeoutException(IJsonRpcService service, Stream resultStream)
{
JsonRpcErrorResponse?error = service.GetErrorResponse(ErrorCodes.Timeout, "Request was canceled due to enabled timeout.");
return(jsonSerializer.Serialize(resultStream, error));
}
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseCors("Cors");
app.UseRouting();
app.UseResponseCompression();
IConfigProvider?configProvider = app.ApplicationServices.GetService <IConfigProvider>();
if (configProvider == null)
{
throw new ApplicationException($"{nameof(IConfigProvider)} has not been loaded properly");
}
ILogManager? logManager = app.ApplicationServices.GetService <ILogManager>() ?? NullLogManager.Instance;
ILogger logger = logManager.GetClassLogger();
IInitConfig initConfig = configProvider.GetConfig <IInitConfig>();
IJsonRpcConfig jsonRpcConfig = configProvider.GetConfig <IJsonRpcConfig>();
IJsonRpcUrlCollection jsonRpcUrlCollection = app.ApplicationServices.GetRequiredService <IJsonRpcUrlCollection>();
IHealthChecksConfig healthChecksConfig = configProvider.GetConfig <IHealthChecksConfig>();
if (initConfig.WebSocketsEnabled)
{
app.UseWebSockets(new WebSocketOptions());
app.UseWhen(ctx =>
ctx.WebSockets.IsWebSocketRequest &&
jsonRpcUrlCollection.TryGetValue(ctx.Connection.LocalPort, out JsonRpcUrl jsonRpcUrl) &&
jsonRpcUrl.RpcEndpoint.HasFlag(RpcEndpoint.Ws),
builder => builder.UseWebSocketsModules());
}
app.UseEndpoints(endpoints =>
{
if (healthChecksConfig.Enabled)
{
try
{
endpoints.MapHealthChecks(healthChecksConfig.Slug, new HealthCheckOptions()
{
Predicate = _ => true,
ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse
});
if (healthChecksConfig.UIEnabled)
{
endpoints.MapHealthChecksUI(setup => setup.AddCustomStylesheet(Path.Combine(AppDomain.CurrentDomain.BaseDirectory !, "nethermind.css")));
}
}
catch (Exception e)
{
if (logger.IsError)
{
logger.Error("Unable to initialize health checks. Check if you have Nethermind.HealthChecks.dll in your plugins folder.", e);
}
}
}
});
app.Run(async(ctx) =>
{
if (ctx.Request.Method == "GET")
{
await ctx.Response.WriteAsync("Nethermind JSON RPC");
}
if (ctx.Request.Method == "POST" &&
jsonRpcUrlCollection.TryGetValue(ctx.Connection.LocalPort, out JsonRpcUrl jsonRpcUrl) &&
jsonRpcUrl.RpcEndpoint.HasFlag(RpcEndpoint.Http))
{
Stopwatch stopwatch = Stopwatch.StartNew();
using CountingTextReader request = new(new StreamReader(ctx.Request.Body, Encoding.UTF8));
try
{
await foreach (JsonRpcResult result in jsonRpcProcessor.ProcessAsync(request, JsonRpcContext.Http(jsonRpcUrl)))
{
using (result)
{
Stream resultStream = jsonRpcConfig.BufferResponses ? new MemoryStream() : ctx.Response.Body;
long responseSize;
try
{
ctx.Response.ContentType = "application/json";
ctx.Response.StatusCode = GetStatusCode(result);
responseSize = result.IsCollection
? jsonSerializer.Serialize(resultStream, result.Responses)
: jsonSerializer.Serialize(resultStream, result.Response);
if (jsonRpcConfig.BufferResponses)
{
ctx.Response.ContentLength = responseSize = resultStream.Length;
resultStream.Seek(0, SeekOrigin.Begin);
await resultStream.CopyToAsync(ctx.Response.Body);
}
}
catch (Exception e) when(e.InnerException is OperationCanceledException)
{
responseSize = SerializeTimeoutException(jsonRpcService, resultStream);
}
catch (OperationCanceledException)
{
responseSize = SerializeTimeoutException(jsonRpcService, resultStream);
}
finally
{
await ctx.Response.CompleteAsync();
if (jsonRpcConfig.BufferResponses)
{
await resultStream.DisposeAsync();
}
}
long handlingTimeMicroseconds = stopwatch.ElapsedMicroseconds();
if (result.IsCollection)
{
jsonRpcLocalStats.ReportCalls(result.Reports);
jsonRpcLocalStats.ReportCall(new RpcReport("# collection serialization #", handlingTimeMicroseconds, true), handlingTimeMicroseconds, responseSize);
}
else
{
jsonRpcLocalStats.ReportCall(result.Report, handlingTimeMicroseconds, responseSize);
}
Interlocked.Add(ref Metrics.JsonRpcBytesSentHttp, responseSize);
}
// There should be only one response because we don't expect multiple JSON tokens in the request
break;
}
}
catch (Microsoft.AspNetCore.Http.BadHttpRequestException e)
{
if (logger.IsDebug)
{
logger.Debug($"Couldn't read request.{Environment.NewLine}{e}");
}
}
finally
{
Interlocked.Add(ref Metrics.JsonRpcBytesReceivedHttp, ctx.Request.ContentLength ?? request.Length);
}
}
});
}
