media upload

Femto.Modules.Media/Contracts/LoadFile/LoadFileQueryHandler.cs

@@ -0,0 +1,25 @@
+using Femto.Modules.Media.Contracts.LoadFile.Dto;
+using Femto.Modules.Media.Data;
+using Femto.Modules.Media.Infrastructure;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace Femto.Modules.Media.Contracts.LoadFile;
+
+internal class LoadFileQueryHandler(IStorageProvider storage, MediaContext context)
+    : IRequestHandler<LoadFileQuery, LoadFileQueryResult>
+{
+    public async Task<LoadFileQueryResult> Handle(
+        LoadFileQuery query,
+        CancellationToken cancellationToken
+    )
+    {
+        var blob = await context
+            .SavedBlobs.Where(b => b.Id == query.FileId)
+            .SingleAsync(cancellationToken: cancellationToken);
+
+        var data = await storage.LoadBlob(query.FileId.ToString());
+
+        return new(data, blob.Type, blob.Size);
+    }
+}