I need a simple httplistener in a core .net app to allow local server on another port to connect. No middleware stack. Barebones

Hey man, if you are a developer, its easy and you can fix it by yourself. The issue is when using the fetch API with POST method, the browser sends a "preflight" OPTIONS request before the actual POST request. You need to modify your C# HttpListener to handle OPTIONS requests and respond with appropriate CORS headers. Here's a example: public void HandleRequest(HttpListenerContext context) { HttpListenerRequest request = [login to view URL]; HttpListenerResponse response = [login to view URL]; // Set common CORS headers [login to view URL]("Access-Control-Allow-Origin", "http://localhost:3000"); // or "*" for all [login to view URL]("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With"); [login to view URL]("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS"); if ([login to view URL] == "OPTIONS") { // Preflight request: return OK status code [login to view URL] = (int)[login to view URL]; [login to view URL](); } // Handle POST or other requests here... } Replace "http://localhost:3000" with your React app's actual origin or use "*" to allow all origins (not recommended for production). Include all headers your fetch request might use in the "Access-Control-Allow-Headers" line. Cheers (this is not a bid but an advice for free).

Hi Dear sir I understand that you're looking for a simple httplistener in a core .net app to allow local server on another port to connect. No middleware stack. Barebones. I believe I am the perfect fit for this project because of my extensive knowledge of C# programming and specifically core 2.1. I have the skills necessary to help you achieve your goal: I have experience working with C# console apps, specifically HttpListeners, which is what you need for this project. This makes me the perfect fit for this job as I can easily understand how to augment the httplistener to respond on preflight automatically before sending data. Additionally, I never use stacks or MVC middleware services when building my apps, instead opting for a barebones approach so they are isolated to the internal network only. I would be more than happy to discuss this project further with you if you feel my skillset would be best suited to meet your needs? Please don't hesitate to contact me if you have any questions or would like more information about me or my services in general. Thank you for considering me for this position!

Hi. Experienced .Net developer here with 10+ years of hands-on experience in Web development. I've worked on numerous SaaS-based web applications during the course of this time, a few mentioned in my portfolio. To understand this scope better, I would appreciate your answers to my following relevant questions: 1. Can you share the complete scope of this project? 2. What are the user types of this application? 3. Do you have mockup designs for the website? Happy to provide you with my relevant portfolio work within the chat. Kindly initiate the chat so we can thoroughly discuss the scope of this project. Thanks!