How to Save Player Data with DataStores (Without Losing It)
Intermediate 9 min Economy & Data
A production data layer: load before spawn, cache in memory, autosave, retry writes, flush on shutdown.
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How it works, step by step
- 1
Build a Profile module that loads a player's key on join with pcall retries; yield spawn until loaded.
- 2
Keep an in-memory session table; treat the DataStore as cold storage, not live state.
- 3
Write with UpdateAsync so read-modify-write is atomic; add exponential backoff on failure.
- 4
Start a 60-second autosave loop per player; disconnect on PlayerRemoving after a final flush.
- 5
Bind game:BindToClose to save every connected player before shutdown completes.
Concepts you'll use
- Session caching
- UpdateAsync atomicity
- BindToClose
Mistakes that cost you players
- SetAsync on every change burns the 60+60 rate limits and races concurrent writes.
- Loading after CharacterAdded causes nil leaderstats; await the profile first.
Every script above — written, placed & wired in ~30 seconds
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