TypeError: client.getAsync is not a function - redis

Question

I want to use redis as caching for my database. I wrote the following code and it is giving me the error:

const offerData = await client.getAsync(offerID)
                               ^ TypeError: client.getAsync is not a function

My current code :

const redis = require('redis')

// Connect to the Redis server
const client = redis.createClient()

client.on('connect', () => {
    console.log('[PASS]'.green + ' Redis Connected')
    require('bluebird').promisifyAll(redis)
})

router.get('/', async (req, res) => {
 const offerData = await client.getAsync(offerID)

    let link
    if (offerData) {
        // If the offer data is in Redis, parse it and assign it to the link variable
        link = JSON.parse(offerData)
    } else {
        // If the offer data is not in Redis, get it from the database and store it in Redis
        link = await Offers.findOne({_id: offerID})
        if (link == null) return res.sendStatus(404)
        client.set(offerID, JSON.stringify(link))
    }

//Do some
})

How can I fix this? Tried that promisifyAll but no luck

I don't see getAsync in the docs. Why do you assume it exists? — Konrad
– Konrad, Commented Dec 18, 2022 at 14:07

Moinul Haq · Accepted Answer · 2022-12-18 14:14:25Z

1

getAsync is not a function of redis module. You can use redis-promisify module which offers this method.

Here is a sample ref for you bellow:

const redis = require('redis-promisify')

// Connect to the Redis server
const client = redis.createClient()

router.get('/', async (req, res) => {
  const offerData = await client.getAsync(offerID)
  // rest of the code
})

answered Dec 18, 2022 at 14:14

Moinul Haq

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2 Comments

Anon Over a year ago

Getting this error : Error Error: Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED 127.0.0.1:6379

Moinul Haq Over a year ago

Make sure your Redis server is running and on port 6379, if it's on a different port you need to pass it like this const client = redis.createClient({ host: '127.0.0.1', port: 6379, db: 0 }) Last but not least, read the docs.

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