Answer
IOptions: One-time config snapshot at startup.
IOptionsSnapshot: Reloaded per request.
IOptionsMonitor: Real-time change tracking + callbacks. Used for dynamic config updates.
Quick Answer
IOptions: singleton, reads config once at startup, doesn't see runtime changes. IOptionsSnapshot: scoped, re-reads config each request — picks up changes between requests. IOptionsMonitor: singleton with change notification — OnChange() fires immediately when config files change. Use Monitor for services that need live config updates.
S
SugharaIQ Editorial Team
Verified Answer
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Source: SugharaIQ