middleware

Cant load a react app after starting server

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In file: node_modules/react-scripts/config/webpackDevServer.config.js like this onBeforeSetupMiddleware(devServer) { // Keep `evalSourceMapMiddleware` // middlewares before `redirectServedPath` otherwise will not have any effect // This lets us fetch source contents from webpack for the error overlay devServer.app.use(evalSourceMapMiddleware(devServer)); if (fs.existsSync(paths.proxySetup)) { // This registers user provided middleware for proxy reasons require(paths.proxySetup)(devServer.app); } }, onAfterSetupMiddleware(devServer) { // Redirect to `PUBLIC_URL` … Read more

How do I access the Rack environment from within Rails?

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I’m pretty sure you can use the Rack::Request object for passing request-scope variables: # middleware: def call(env) request = Rack::Request.new(env) # no matter how many times you do ‘new’ you always get the same object request[:foo] = ‘bar’ @app.call(env) end # Controller: def index if params[:foo] == ‘bar’ … end end Alternatively, you can get … Read more

Read Controller and Action name in middleware .Net Core

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I had the same issue and this worked for me in .NetCore 3.1: public async Task InvokeAsync(HttpContext httpContext) { var controllerActionDescriptor = httpContext .GetEndpoint() .Metadata .GetMetadata<ControllerActionDescriptor>(); var controllerName = controllerActionDescriptor.ControllerName; var actionName = controllerActionDescriptor.ActionName; await _next(httpContext); } In order for GetEndpoint() to return the actual endpoint instad of null, the following conditions have to be … Read more

Why don’t my Django unittests know that MessageMiddleware is installed?

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Django 1.4 has a expected behavior when you create the request with RequestFactory that can trigger this error. To resolve this issue, create your request with RequestFactory and do this: from django.contrib.messages.storage.fallback import FallbackStorage setattr(request, ‘session’, ‘session’) messages = FallbackStorage(request) setattr(request, ‘_messages’, messages) Works for me!

Compojure routes with different middleware

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(defroutes user-routes* (GET “-endpoint1” [] (“USER ENDPOINT 1”)) (GET “-endpoint2” [] (“USER ENDPOINT 1”))) (def user-routes (-> #’user-routes* (wrap-basic-authentication user-auth?))) (defroutes admin-routes* (GET “-endpoint” [] (“ADMIN ENDPOINT”))) (def admin-routes (-> #’admin-routes* (wrap-basic-authentication admin-auth?))) (defroutes main-routes (ANY “*” [] admin-routes) (ANY “*” [] user-routes) This will run the incoming request first through admin-routes and then through … Read more

How to use the middleware to check the authorization before entering each route in express?

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As long as app.use(authChecker); is before app.use(app.router); it will get called for every request. However, you will get the “too many redirects” because it is being called for ALL ROUTES, including /auth. So in order to get around this, I would suggest modifying the function to something like: function authChecker(req, res, next) { if (req.session.auth … Read more

Where do you put your Rack middleware files and requires?

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As of Rails 3.2, Rack middleware belongs in the app/middleware directory. It works “out-of-the-box” without any explicit require statements. Quick example: I’m using a middleware class called CanonicalHost which is implemented in app/middleware/canonical_host.rb. I’ve added the following line to production.rb (note that the middleware class is explicitly given, rather than as a quoted string, which … Read more