Data API token management and session reuse
ExpertObtain, cache, and refresh Data API tokens efficiently to minimize authentication round-trips and avoid rate limits.
What you'll learn
- How FileMaker Data API tokens expire
- How to cache and reuse a token across requests
- How to detect token expiry and re-authenticate transparently
Every Data API request requires a bearer token obtained from the /sessions login endpoint. Tokens expire after 15 minutes of inactivity (configurable on FileMaker Server). Requesting a new token for every API call adds latency and consumes a server connection slot. Caching and refreshing tokens correctly is essential for production integrations.
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Token lifetime and expiry
A token expires after a configurable idle timeout (default 15 minutes). Any authenticated API call resets the idle timer. Tokens do not have a fixed absolute expiry — they expire only after the idle period with no activity.
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