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# TTLCache - an in-memory cache with expiration
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[](https://pkg.go.dev/github.com/ReneKroon/ttlcache/v2)
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[](https://github.com/ReneKroon/ttlcache/releases)
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**Although v2 of ttlcache is not yet deprecated, v3 should be used as it
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contains quite a few additions and improvements.**
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TTLCache is a simple key/value cache in golang with the following functions:
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Note (issue #25): by default, due to historic reasons, the TTL will be reset on each cache hit and you need to explicitly configure the cache to use a TTL that will not get extended.
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[](https://travis-ci.com/ReneKroon/ttlcache)
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[](https://goreportcard.com/report/github.com/ReneKroon/ttlcache)
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[](https://coveralls.io/github/ReneKroon/ttlcache?branch=master)
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[](https://github.com/ReneKroon/ttlcache/issues)
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[](https://github.com/ReneKroon/ttlcache/LICENSE)
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## Usage
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`go get github.com/ReneKroon/ttlcache/v2`
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`go get github.com/jellydator/ttlcache/v2`
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You can copy it as a full standalone demo program. The first snippet is basic usage, where the second exploits more options in the cache.
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"fmt"
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"time"
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"github.com/ReneKroon/ttlcache/v2"
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"github.com/jellydator/ttlcache/v2"
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)
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var notFound = ttlcache.ErrNotFound
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"fmt"
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"time"
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"github.com/ReneKroon/ttlcache/v2"
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"github.com/jellydator/ttlcache/v2"
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)
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var (
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