Question 121178 in Redis Question posted in
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In NestJs, I added Redis as cache manager, when I specify {ttl : 0} it throws a type error, it was working before

I am using Redis as the cache manager in NestJs project. I was using a code like:

await this.productCacheManager.set('products/time', data, { ttl: 60} )

When I delete the ttl argument or just put 60 there, it doesn’t work and it immediately removes the record from redis, so I was using { ttl: 60} which was working until now.
I do not know what happend but now it throws an error like:

Argument of type ‘{ ttl: number; }’ is not assignable to parameter of type ‘number’.

The parameter I am typing is a number…

Trying to make it work again like before.

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2

Answers


  1. 0

    You only need to pass the number, not the object { ttl: 60}, just use 60, because here it is only reserved for til and it knows it’s going to be a number.

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  2. 0

    If you use cache-manager v4 and cache-manager-redis-store v2, you need to pass an options object, as in

    cache.set(key, value, { ttl: 60 }) // in seconds

    (And that’s because the redis store v2 code expects an object)

    If you are using cache-manager v5, though, you may pass an integer, although I’ve not yet been able to make cache-manager-redis-store@^3 work well with cache-manager@^5.

    cache.set(key, value, 60000) // in milliseconds with v5!

    ⚠️ As of today (2023-02-24), NestJS recommends using cache-manager v4.

    Source: NestJS documentation as for the seconds/milliseconds consideration.

    The object vs number specification, I found out myself by trying different combinations and parsing the redis store code.

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