Debugging local ASP.NET Core API responses from IoT device without errors
I'm trying to implement I'm learning this framework and Recently started working with an ASP.NET Core Web API designed to interact with a series of IoT devices using HTTP protocols... During local development, the API is meant to process data packets sent from these devices, but I’m observing that my endpoints return 404 errors intermittently. The devices are configured to send JSON payloads, and I believe the issue might be related to how the routes are organized or perhaps with the middleware handling. For instance, I have the following controller setup: ```csharp [ApiController] [Route("api/[controller]")] public class DeviceController : ControllerBase { [HttpPost] public IActionResult ReceiveData([FromBody] DeviceData data) { if (data == null) return BadRequest(); // Process the data return Ok(); } } ``` When the IoT device sends packets, the logs suggest the request is reaching the middleware but isn’t hitting this action correctly. I've tried enabling detailed error messages in `Startup.cs`: ```csharp app.UseExceptionHandler("/error"); app.UseDeveloperExceptionPage(); ``` Still, the 404 doesn’t provide much context. I’ve also checked the CORS policy as the devices are sending requests from different origins: ```csharp services.AddCors(options => { options.AddPolicy("AllowAll", builder => builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader()); }); ``` This setup seems correct, yet I still suspect that certain requests might not conform to expected routes due to varying configurations across devices. Could there be specific patterns in the JSON payloads that could affect routing? I would appreciate insights on how to effectively debug the routing to gain more clarity on why these responses are failing. Are there best practices for logging or middleware setup that can help capture more detailed output? Any advice on potential pitfalls when configuring ASP.NET Core to handle incoming requests from diverse IoT devices would be invaluable. This is my first time working with Csharp 3.10. Cheers for any assistance! I've been using Csharp for about a year now. Thanks for your help in advance!