.NET Serialization Expert FAQs

Question 1

Why should I avoid Newtonsoft.Json in modern .NET applications?

Accepted Answer

Newtonsoft.Json relies heavily on runtime reflection, which is significantly slower than modern source-generated alternatives and is incompatible with Native AOT publishing.

Question 2

When should I choose Protobuf over JSON?

Accepted Answer

Use Protobuf for high-performance internal communication like gRPC, actor messaging, or event sourcing where compact binary size and strict, contract-first versioning are critical.

Question 3

What is the recommended way to handle JSON in .NET 7 and later?

Accepted Answer

The recommendation is to use System.Text.Json with JsonSerializerContext source generators to eliminate reflection at runtime and improve startup performance.

Question 4

Is this skill compatible with Native AOT?

Accepted Answer

Yes, it specifically focuses on implementation patterns using source generators for System.Text.Json and MessagePack to ensure full compatibility with Native AOT and trimming.

.NET Serialization Expert

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