public async ValueTask <object> InvokeMethodAsync(HubInvocationContext invocationContext,
Func <HubInvocationContext, ValueTask <object> > next)
{
//HubException from here can terminate the invokation before calling the hub method or any next, and the clietn will recieve an error
//practical: you can add custom attribute on the method and fetch it's data from here
//E.G:
// var languageFilter = (LanguageFilterAttribute)Attribute.GetCustomAttribute(
// invocationContext.HubMethod, typeof(LanguageFilterAttribute));
// if (languageFilter != null &&
// invocationContext.HubMethodArguments.Count > languageFilter.FilterArgument &&
// invocationContext.HubMethodArguments[languageFilter.FilterArgument] is string str)
_logger.LogInformation(
$"Calling hub method '{invocationContext.HubMethodName}'" +
$" with args {string.Join(", ", invocationContext.HubMethodArguments)}");
var activeUser = _sessionRepo.GetActiveUser(invocationContext.Context.UserIdentifier);
var domain = _methodDomains.GetDomain(invocationContext.HubMethodName);
if (activeUser.IsDisconnected)
{
throw new Exception(
"there's something wrong with ur sys, a user is disconnected and calling!");
}
if (domain == null)
{
throw new BadUserInputException(
"the user is invoking a function that doesn't exist or it's not an rpc");
}
if (!activeUser.Domain.IsSubclassOf(domain) &&
!activeUser.Domain.IsEquivalentTo(domain))
{
throw new BadUserInputException(
$"the called function with domain {domain} is not valid in the current user domain {activeUser.Domain}");
}
_requestCache.Init(invocationContext.Context.UserIdentifier);
try
{
return(await next(invocationContext));
// invokes the next filter. And if it's the last filter, invokes the hub method
}
catch (BadUserInputException)
{
_logger.LogInformation("BadUserInputException happened");
throw;
// return new ValueTask<int>(1);
// return new ValueTask<User>(new User {Name = "test name on the returned user"});
// return new ValueTask<object>($"there's a buie exc on the server {e.Message}");
}
// catch (Exception ex)
// {
// _logger.LogInformation($"Exception calling '{invocationContext.HubMethodName}': {ex}");
// throw;
// }
finally
{
//check againest the called funtion if it's a trigger
//is it throw?
//call the serverloop to create new scope to check for distribute or finalize
//my issue is the place
//so create a trigger system
}
}
