juniorWCF

What is instance management in WCF?

Updated May 6, 2026

Short answer

Instance management controls lifecycle of service objects.

Deep explanation

It determines whether a new instance is created per request, session, or shared.

Real-world example

Stateless APIs using PerCall mode.

Common mistakes

  • Using Singleton without thread safety.

Follow-up questions

  • What modes exist?
  • Which is scalable?

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