Rails 7.1: implementing Custom Middleware Interfering with Rack Session Management
I'm prototyping a solution and Could someone explain Quick question that's been bugging me - I'm working on a personal project and I'm working with a strange scenario with my Rails 7.1 application where my custom middleware seems to be interfering with the Rack session management. I have a custom middleware that checks for certain headers and manipulates the request before it reaches the controllers. However, after adding this middleware, my sessions are not persisting across requests; I notice that `session[:user_id]` is `nil` even after successfully logging in. Here’s a simplified version of the middleware I implemented: ```ruby class CustomHeaderMiddleware def initialize(app) @app = app end def call(env) req = Rack::Request.new(env) # Check for a custom header and do something if req.headers['X-Custom-Header'] == 'true' # Perform some actions end @app.call(env) end end ``` In my `application.rb`, I added the middleware like this: ```ruby config.middleware.use CustomHeaderMiddleware ``` I’ve also confirmed that the session store is configured properly, as follows: ```ruby config.session_store :cookie_store, key: '_myapp_session', expire_after: 14.days ``` I tried placing debug statements inside the middleware to trace the flow of the request and found that the session data is indeed being lost. When I comment out the middleware, the sessions behave as expected. I also checked the Rails logs, and I see no errors related to session storage or Rack. Is there something I might be missing in my middleware that could cause the session to be reset? Could it be related to how I'm manipulating the request, or is there something specific about session management in Rails that I need to be aware of? Any insight would be greatly appreciated! My development environment is Linux. Is there a better approach? This is part of a larger service I'm building. I'd really appreciate any guidance on this. This issue appeared after updating to Ruby 3.10. Could someone point me to the right documentation? Any help would be greatly appreciated! Thanks in advance!