public async Task Invoke(HttpContext httpContext)
{
// serializer may be mutated in JsonRpcRequest.CreateAsync, so we need new instance for every request
JsonSerializer serializer = JsonSerializer.Create(_options.JsonSerializerSettings);
try
{
using (var scope = _rpcServices.GetRequiredService <IServiceScopeFactory>().CreateScope())
{
var requestServices = new CompositeServiceProvider(
httpContext.RequestServices,
scope.ServiceProvider
);
JsonRpcRequest request;
try
{
request = await JsonRpcRequest.CreateAsync(httpContext, serializer);
}
catch (Exception ex)
{
// todo: log
if (!httpContext.Response.HasStarted && !httpContext.RequestAborted.IsCancellationRequested)
{
await SendResponse(httpContext, new JsonRpcResponse(null, JsonRpcError.PARSE_ERROR, errorData : ex.ToString()), serializer);
}
return;
}
var rpcContext = new JsonRpcContext(requestServices, _server, request);
await _server.ProcessAsync(rpcContext);
if (rpcContext.Request.IsNotification)
{
httpContext.Response.StatusCode = 204;
}
else
{
await SendResponse(httpContext, rpcContext.Response, serializer);
}
}
}
catch (Exception ex)
{
// todo: log
if (!httpContext.Response.HasStarted && !httpContext.RequestAborted.IsCancellationRequested)
{
await SendResponse(httpContext, new JsonRpcResponse(null, JsonRpcError.INTERNAL_ERROR, errorData : ex.ToString()), serializer);
}
}
}