A simple transparent caching wrapper for Node. Wrap a function with it and call it normal. And the cache stays warm with background updates, so it’s always fast.

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Available on GitHub

Previously I covered a more sophisticated caching solution for Firestore. However, you don’t always need something that complex.

Sometimes you just want an expensive function call to be cached for 5 or 10 minutes to reduce load. This is often the case for read-focused operations where it’s ok if the results are a little stale. Especially things like search results, image caching, certain computationally expensive operations, etc.

For that purpose, I built this transparent caching wrapper.

Features

• The cache is periodically updated in the background without blocking the primary call. So it’s always fast.
• Simplicity. Just wrap any function and it becomes cached on the next call.
• Includes both local LRU cache and Redis cache levels. This improves speed and as a bonus minor network interrupts don’t effect serving from the local cache.

#programming #typescript #redis #development #nodejs