redis-caching

redis caching with mongodb

setup

To configure redis and MongoDB do

const rm = require('redis-caching');

rm({
    // host: '/tmp/redis.sock', //unix domain
    // host: '127.0.0.1', //can be IP or hostname
    port: 6379,
    maxRetries: 10, //reconnect retries, default -1 (infinity)
    auth: '', //optional password, if needed
    db: 0, //optional db selection
    autoConnect: true, //will connect after creation
    doNotSetClientName: false, //will set connection name (you can see connections by running CLIENT LIST on redis server)
    doNotRunQuitOnEnd: false, //when you call `end()`, driver tries to send `QUIT` command to redis before actual end
});

Redis handling

isCached

To check if an key is cached in redis you write the following

rm.isCached(key, callback);

cache

To cache data you run the following function

rm.cache(
  key,
  document,
  settings,
  callback
);

Settigns could be the following

{
  forceUpdate: true,
  duration: -1
}

forceUpdate set to true overwrites the data if already cached duration is how long the key should be active, -1 is infinite

uncache

To uncache data the following function is called

rm.unCache(
  key,
  settings,
  callback
);

Settings could be the following

{
  forceDel:  true,
  duration: 10
}

forceDel deletes the key without taking duration into account duration sets a duration for when it should delete