Store an array or a list of objects in Redis v. 5.0 via NodeJS

Question

Is it not possible to store an array of objects or a list of objects via Redis 5.0?

I can only make it work - if I first convert the array/list to JSON-format like this:

redis.set('persons', JSON.stringify(array_of_persons)
const persons = JSON.parse(await redis.get('persons'));

OR

redis.hset('my_list', 'persons', JSON.stringify(array_of_persons));
const persons = JSON.parse(await redis.hget('my_list', 'persons'));

But there is a lot of overhead to continuously stringify/parse big collections in javascript when I need to add/update/remove objects from the collections - so how do I performance optimize this code - if it can't be done in a more "native" way in Redis v. 5.0?

Guy Royse · Accepted Answer · 2021-05-11 20:28:44Z

4

You could put them in a List in Redis instead of a String. Try:

redis.lpush('persons', ...array_of_persons)

For the full complement of List commands, check out: https://redis.io/commands#list

answered May 11, 2021 at 20:28

Guy Royse

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2 Comments

PabloDK Over a year ago

I simply can't remember the details anymore - about this issue... but back then I apparently couldn't get anything to work out well ... but this seems pretty easy :) Also crazy it took someone months to come up with an answer to my question :D

Guy Royse Over a year ago

I just dropped into StackOverflow, since it has been a while, and this question was unanswered. So I answered it. Didn't even look at the date. Hopefully it helps someone down the road!

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