Unleash.Cache (Unleash v5.1.2)

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This module is a cache backed by an ETS table. We use it to allow for multiple threads to read the feature flag values concurrently on top of minimizing network calls

Summary

Functions

get_all_feature_names(table_name \\ :unleash_cache)

Will return all values currently stored in the cache

get_feature(name, table_name \\ :unleash_cache)

Will return the feature for the given name stored in the cache

get_features(table_name \\ :unleash_cache)

Will return all features stored in the cache

init(existing_features \\ [], table_name \\ :unleash_cache)

Will create a new ETS table named :unleash_cache

upsert_features(features, table_name \\ :unleash_cache)

Will upsert (create or update) the given features in the cache

Functions

get_all_feature_names(table_name \\ :unleash_cache)

Will return all values currently stored in the cache

get_feature(name, table_name \\ :unleash_cache)

Will return the feature for the given name stored in the cache

get_features(table_name \\ :unleash_cache)

Will return all features stored in the cache

init(existing_features \\ [], table_name \\ :unleash_cache)

Will create a new ETS table named :unleash_cache

upsert_features(features, table_name \\ :unleash_cache)

Will upsert (create or update) the given features in the cache

This will clear the existing peristed features to prevent stale reads

When Unleash.Config.allowed_features/0 is set, only features whose name is in that list are stored, keeping the cache minimal for services that use just a few flags. When it is nil (the default), every feature is cached.