How to handle transactions across multiple repositories?

Short answer: Use DbContext transaction or IDbContextTransaction: using var transaction = await _context.Database.BeginTransactionAsync(); try { // multiple repository operations await _unitOfWork.CommitAsync();

Example code

await transaction.CommitAsync();
} catch {
await transaction.RollbackAsync(); throw; }

Real-world example (ShopNest)

ShopNest’s order service uses EF Core to save an Order and its line items in one SaveChangesAsync() call inside a transaction.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.