feat(redis): add TTL support for Redis checkpoint storage (#27) #33
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Implements Time-To-Live (TTL) functionality for Redis-based checkpoint storage in LangGraph. This allows automatic expiration of checkpoint data after a configurable time period, helping to manage Redis memory usage. Key features: - Add TTL configuration option to RedisSaver and AsyncRedisSaver constructors - Implement TTL refresh-on-read functionality to extend expiration when checkpoints are accessed - Apply TTL consistently to all related keys (checkpoints, blobs, writes) - Add comprehensive test suite for TTL functionality - Update type hints to use explicit format (Dict, List, Tuple) for better clarity
abrookins
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May 1, 2025
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abrookins
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This looks right to me. Too bad we can't do JSON.SET ... EX. We should talk to someone about that.
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Implements Time-To-Live (TTL) functionality for Redis-based checkpoint storage in LangGraph. This allows
automatic expiration of checkpoint data after a configurable time period, helping to manage Redis memory usage.
Key features: