whats up! I am using redis with express and nodejs. when looking how to insert or retrieve data from redis, I saw two ways, one like this:
req.session.surname = 'toto'
console.log(req.session.surname)
and the other way is looking like this:
client.set('surname', 'toto')
client.get('surname', (err, data) => {
console.log(data)
})
Is there a difference between these two methods ? Thanks for any help. Cheers !
There is no major difference between these two methods. In the first one you could use any other session store like mongo-db if you need more reliability (since redis is memcached there is a possibility to lose the data as data will be stored in RAM only). Second one is just set and get the desired value to the key for general usage where there is no 100% reliability is needed. Also you will face issue when processing request concurrently as there is no concurrency control for mem-cached DB like redis.
If you need 100% reliability (if you don't want to lose data easily) you can go with mongo-db. In mongo-db data will be stored persistently also we can control concurrency as well.