Storing arbitrary bytes in Redis

[cinderrrr]

Hi there-- is there a way to store arbitrarily encoded byte arrays with Get/Set? Or do I need to manage the encoding/decoding on my end?

[rueian]

Redis string is binary safe. So yes, you can store arbitrary Go byte slice as Go string without special encoding.

And rueidis.BinaryString() can help you do the conversion without memory copy.

[cinderrrr]

Is there a clean way to do this with the response of an mget? It looks like the documentation says to use RedisMessage.AsReader(), but does this work for []RedisMessages to get back to [][]byte?

[rueian]

For MGET, I would recommend using AsStrSlice() to get the response as []string first. And then view each string as []byte while iterating.

[0x079]

I think casting string to []byte will cause allocation?

[rueian]

It depends. But indeed, casting with full allocation is the most easiest way.

[cinderrrr]

I ended up having to use AsArray(), because I needed to know whether the call was a hit, and we sometimes have empty string values.