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How do I store images correctly in Redis?

Decided to store images in Redis, how to do it correctly? Now I do this:

$redis->set('image_path', 'here is the base64 image code');

I’m not sure this is normal.

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2

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  1. 0

    It is perfectly ok to store images in Redis. Redis keys and values are both binary-safe

    Redis Strings are binary safe, this means that a Redis string can
    contain any kind of data, for instance a JPEG image or a serialized
    Ruby object.

    A String value can be at max 512 Megabytes in length.

    See Data types

    You can store the image in binary instead of base64 and it will be more efficient:

    • In RAM memory usage on your redis server
    • In Network usage
    • In compute (CPU) usage assuming you are passing the images in binary to the final client

    You can do

    $client->set('profile_picture', file_get_contents("profile.png"));

    See Storing Binary Data in Redis

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  2. 0

    Here is my simple example of storing image file into Redis Database and retrieve them as well

    from PIL import Image
import redis
from io import BytesIO


output = BytesIO()
im = Image.open("/home/user/im.jpg")
im.save(output, format=im.format)

r = redis.StrictRedis(host='localhost', port= 6379, db =0)
r.set('imgdata', output.getvalue())
output.close()
r.save  #redis-cli --raw get 'imgdata' >test.jpg
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