What is interception in EF Core used for?
PICTURE THIS: DOM IS A TREE
Simple meaning
SaveChanges and command interceptors add auditing, multi-tenant filters, or soft-delete stamps.
WHY — EF Core instead of guessing?
Why interviewers care about EF Core:
people who only read docs from people who shipped.
and tied to .NET work.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens step by step?
Before you speak the answer, walk the interviewer through these steps:
- 1SaveChanges and command interceptors
add auditing, multi-tenant filters, or soft-delete stamps.
- 2Keep them fast and
side-effect aware.
- 3Heavy logic belongs in
the domain layer.
- 4Give an example
One tiny concrete case you can say aloud.
- 5Common mistake
What juniors usually get wrong.
- 6Close
When you pick this over the alternative.
EXAMPLE — See it in action
Here's a short line you can speak, broken into clear beats:
Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
SaveChanges and command interceptors add auditing, multi-tenant filters, or soft-delete stamps. Keep them fast and side-effect aware.