The problem is, that your error handlers should always be at the end of your application stack. This means, that you can either move the error handler from your middleware to your app.js and use them after your requires (app.use()) or include your routes before your middleware.
I faced a situation where Auth::user() always returns null, it was because I was trying to get the User in a controller’s constructor. I realized that you can’t access the authenticated user in your controller’s constructor because the middleware has not run yet. As an alternative, you can define a Closure based middleware directly in … Read more
Even though there is no build-in middleware filter system in expressjs, you can achieve this in at least two ways. First method is to mount all middlewares that you want to skip to a regular expression path than includes a negative lookup: // Skip all middleware except rateLimiter and proxy when route is /example_route app.use(/\/((?!example_route).)*/, … Read more
The session middleware implements generic session functionality with in-memory storage by default. It allows you to specify other storage formats, though. The cookieSession middleware, on the other hand, implements cookie-backed storage (that is, the entire session is serialized to the cookie, rather than just a session key. It should really only be used when session … Read more
You want decorator_from_middleware. from django.utils.decorators import decorator_from_middleware @decorator_from_middleware(MyMiddleware) def view_function(request): #blah blah It doesn’t apply to URLs, but it works per-view, so you can have fine-grained control over its effect.
Unable to resolve service for type ‘Microsoft.AspNetCore.Session.ISessionStore’ while attempting to activate ‘Microsoft.AspNetCore.Session.SessionMiddleware’ If you get this error message in ASP.NET Core, you need to configure the session services in Startup.cs: public void ConfigureServices(IServiceCollection services) { services.AddMvc() .AddSessionStateTempDataProvider(); services.AddSession(); } public void Configure(IApplicationBuilder app, IHostingEnvironment env) { app.UseSession(); app.UseMvcWithDefaultRoute(); }
The correct answer is using the res.on(“finish”, cb) callback. i.e.: express.use(function(req, res, next) { console.log(“before”); res.on(“finish”, function() { console.log(“after”); }); next(); });
applyMiddleware takes each piece of middleware as a new argument (not an array). So just pass in each piece of middleware you’d like. const createStoreWithMiddleware = applyMiddleware(ReduxThunk, logger)(createStore);
Consider following example: const middleware = { requireAuthentication: function(req, res, next) { console.log(‘private route list!’); next(); }, logger: function(req, res, next) { console.log(‘Original request hit : ‘+req.originalUrl); next(); } } Now you can add multiple middleware using the following code: app.get(“https://stackoverflow.com/”, [middleware.requireAuthentication, middleware.logger], function(req, res) { res.send(‘Hello!’); }); So, from the above piece of code, … Read more
Here is a Typesafe/Reactive point of view on the question from Jonas Bonér. From the third paragraph of this blog post: The difference being that messages are directed, events are not — a message has a clear addressable recipient while an event just happen for others (0-N) to observe it.