Implemented GetEvidenceEndpoint

PostFundManagement.Api/Endpoints/Evidence/GetEvidenceEndpoint.cs

@@ -0,0 +1,33 @@
+using PostFundManagement.Application.Extensions;
+using PostFundManagement.Application.Services.Evidence;
+using PostFundManagement.Domain.Abstractions;
+using PostFundManagement.Domain.Extensions;
+using PostFundManagement.Domain.Security;
+
+namespace PostFundManagement.Api.Endpoints.Evidence;
+
+[ApiVersionTarget(1)]
+public sealed class GetEvidenceEndpoint : IEndpoint
+{
+    public void Map(IEndpointRouteBuilder builder)
+    {
+        builder.MapGet("api/evidence/{evidenceId}", async (string evidenceId, EvidenceService service, 
+            CancellationToken cancellationToken = default) =>
+        {
+            var result = await service.GetEvidenceAsync(evidenceId, cancellationToken);
+
+            return result.IsSuccess
+                ? Results.Ok(result.Value)
+                : Results.NotFound();
+
+        })
+        .WithDescription("Get a specific evidence record and assiciated file URLs")
+        .WithName(typeof(GetEvidenceEndpoint).ToEndpointName())
+        .MapToApiVersion(new ApiVersion(1))
+        .Produces<Domain.Models.Evidence>(StatusCodes.Status200OK)
+        .Produces(StatusCodes.Status404NotFound)
+        .Produces(StatusCodes.Status401Unauthorized)
+        .WithTags(EndpointTags.Evidence)
+        .CacheOutput();
+    }
+}

PostFundManagement.Application/Services/Evidence/EvidenceService.cs

@@ -277,4 +277,27 @@ public sealed class EvidenceService(IDbContextFactory<ApplicationDbContext> cont
             return Result.Fail(new Error(ex.Message).CausedBy(ex));
         }
     }
+
+    public async ValueTask<Result<Domain.Models.Evidence>> GetEvidenceAsync(string evidenceId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            var decodeResult = hashService.DecodeLongIdHash(evidenceId);
+
+            if (decodeResult.IsFailed)
+                return Result.Fail(decodeResult.Errors);
+
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var evidence = await context.Evidences.AsNoTracking().FirstOrDefaultAsync(e => e.Id == decodeResult.Value, cancellationToken);
+
+            return evidence is not null
+                ? Result.Ok(evidence.Map())
+                : Result.Fail("Failed to get a specific evidence record.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
 }