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Multi-tenant auth scenarios?

Q: Multi-tenant auth scenarios?

Short answer: Multi-tenancy can involve: Per-tenant databases Per-tenant user stores Per-tenant roles/policies Strategies: Use claims to store tenant ID Filter data per tenant Custom middleware for tenant resolution Can integrate with IdentityServer4 or Azure AD B2C for federated auth. Real-world example (ShopNest) A ShopNest checkout request flows through middleware, hits a minimal API or controller, uses scoped services, and returns ProblemDetails on errors. Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Short answer: Multi-tenancy can involve: Per-tenant databases Per-tenant user stores Per-tenant roles/policies Strategies: Use claims to store tenant ID Filter data per tenant Custom middleware for tenant resolution Can integrate with IdentityServer4 or Azure AD B2C for federated auth.

Real-world example (ShopNest)

A ShopNest checkout request flows through middleware, hits a minimal API or controller, uses scoped services, and returns ProblemDetails on errors.

Say this in the interview

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

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