prueba tecnica

backend/ProximaContracts/ProximaContracts.API/Middleware/ExceptionHandlingMiddleware.cs

@@ -0,0 +1,69 @@
+using ProximaContracts.Shared.Exceptions.Repositories.Contract;
+using ProximaContracts.Shared.Exceptions.Repositories.Rates;
+using System.Diagnostics.Contracts;
+using System.Net;
+using System.Text.Json;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace ProximaContracts.API.Middleware
+{
+    public sealed class ExceptionHandlingMiddleware
+    {
+        private readonly RequestDelegate _next;
+        private readonly ILogger<ExceptionHandlingMiddleware> _logger;
+
+        public ExceptionHandlingMiddleware(
+            RequestDelegate next,
+            ILogger<ExceptionHandlingMiddleware> logger)
+        {
+            _next = next;
+            _logger = logger;
+        }
+
+        public async Task InvokeAsync(HttpContext context)
+        {
+            try
+            {
+                await _next(context);
+            }
+            catch (Exception ex)
+            {
+
+                _logger.LogError(ex, "Unhandled exception");
+                await HandleExceptionAsync(context, ex);
+            }
+        }
+
+        private static Task HandleExceptionAsync(HttpContext ctx, Exception ex)
+        {
+           
+            (HttpStatusCode code, string title) mapping = ex switch
+            {
+                GetContractByIdException => (HttpStatusCode.InternalServerError, "Error getting contract by Id."),
+                GetContractsException => (HttpStatusCode.InternalServerError, "Error getting all contracts."),
+                CreateContractException => (HttpStatusCode.InternalServerError, "Error creating contract."),
+                CreateContractRateNotFoundException => (HttpStatusCode.BadRequest, "Error creating contract =>Rate not found."),
+                UpdateContractException => (HttpStatusCode.InternalServerError, "Error updating contract."),
+                CheckIfRateIdExistsException =>(HttpStatusCode.InternalServerError, "Error checking rates."),
+                GetAllRatesException => (HttpStatusCode.InternalServerError, "Error getting all rates."),
+                GetAllRates404Exception =>(HttpStatusCode.NotFound, "No Rates found."),
+                _ => (HttpStatusCode.InternalServerError, $"Internal server error.")
+            };
+            
+            var problem = new
+            {
+                type = $"https://httpstatuses.com/{(int)mapping.code}",
+                title = mapping.title,
+                status = (int)mapping.code,
+                detail = ex.Message,
+                instance = ctx.Request.Path
+            };
+
+            string json = JsonSerializer.Serialize(problem);
+            ctx.Response.ContentType = "application/problem+json";
+            ctx.Response.StatusCode = (int)mapping.code;
+            return ctx.Response.WriteAsync(json);
+        }
+    }
+
+}