Is it reasonable to use redis to write data from asynchronous requests?

Question

PHP

There is an application in php, on the page there is a list of products and by clicking on the product you need to write the time of the click and a couple more data to the database.
I thought to store a key-value pair as a product id - an array with fields. I think to do all this using ajax + using php to write in redis. Many people can click on one product at the same time.
So I have never used radish or memcached, so I ask if this will be the right solution? Or can you just send a bunch of queries to a relational database?

Answer 1

Radish is suitable for keeping statistics.
If some deeper analysis is planned, then periodically collect the accumulated data and save it from the radish in relational databases.
Using a memcache is not the best idea, because there data can be overwritten when there is not enough memory and you will never know what data was overwritten by new ones.