k6cache

A bunch of random functions for k6 performance testing that I found missing, but useful in our work.

Compile for development

xk6 build v0.54.0 \
  --with github.com/b4dc0d3rs/k6-cache=.

./k6 run k6caches.js

Use

Import this:

import k6cache from 'k6/x/k6cache'

Default expiring cache

Default cache has automatic expiry measured in seconds. There is one default cache that share the same expiry duration.

Usage examples:

// Configure it in the setup method
k6utils.createCacheWithExpiryInSeconds(1)

// Insert anything anytime
k6utils.putToCache('key', 'value')

// Get anywhere anytime, even in a different method
k6utils.getFromCache('key')

k6utils.removeFromCache('key')

Named caches

k6-cache stores a map of caches. Each cache can have different autoexpiry duration.

Use this when single expiry duration in the default cache is not enough.

To create a named cache with expiry in seconds:

k6cache.createWithExpiryInSeconds('cache_name', 1)

Named cache must be created before use. If not, an error will be thrown.

Methods that share this cache have Named in the name.

To put key-value to the named cache:

k6cache.putToNamedCache("cache_name", "key", "value")

The same pattern applies when inserting and deleting from a named cache:

k6cache.getFromNamedCache("cache_name", "key")

k6cache.removeFromNamedCache("cache_name", "key")