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Question1 answer4,127 followingPosted 26 Mar 2020, 02:50 UTC18.1K views2,100 votes

Passport.js session serialization: configuring serializeUser to store minimal user identifier

Goal: Configure Passport.js's serializeUser callback so that the session store holds only the essential identifier needed to reconstruct the user object, thereby reducing memory usage and I/O latency in high‑traffic Node.js applications. Uncertainty: It is unclear what minimal payload serializeUser should return (e.g., just the user ID, a signed token, or a

Community & Careers · Editorial question

nodejs

Community & Careers

Question1 answer4,855 followingPosted 10 Feb 2020, 02:24 UTC43.6K views1,423 votes

owner answered

Uncaught serializeUser exception and session growth in Passport session handling

Passport session management relies on serializeUser and deserializeUser to store and reconstruct user identity across requests. Research notes indicate potential retention of session data when serializeUser throws an uncaught exception, with behavior varying by Passport version and session store implementation. The goal is to clarify the documented cleanup g

Community & Careers · Editorial question

serializeuser

passport memory-leak