# Whenever a user 


By [Untitled](https://paragraph.com/@0x5c46f3433df8b5e0d53694d9f2b9d7ac59f0af31) · 2022-08-06

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Whenever a user logs into an application with their wallet, that application needs to gather data about that user from the Dataverse. When an application wants to fetch a single state that they already somehow know the identifier of—that’s easy. But application developers need much more data retrieval capability than fetching content using its specific machine-readable identifier.

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*Originally published on [Untitled](https://paragraph.com/@0x5c46f3433df8b5e0d53694d9f2b9d7ac59f0af31/whenever-a-user)*