Get gzip/deflate-compressed content from redis in powershell

RedisGetAndUncompress.ps1

# one time setup
Install-Module PsRedis

# connect
Import-Module PsRedis
Connect-Redis -ConnectionString "my-redis-server.example.com"

# create function, given a redis key, get the bytes, ungzip/deflate them and return the string.
function Get-RedisKeyAndUncompress($key) {
    # get ambient connection
    $db = $Global:PsRedisCacheConnection.GetDatabase($Global:PsRedisDatabaseIndex)
    
    # read bytes into memory stream
    $bytes = [Byte[]]$db.StringGet($key)
    $mem = New-Object -TypeName System.IO.MemoryStream(,$bytes)
    
    # decompress
    $deflate = New-Object System.IO.Compression.DeflateStream(@($mem, [System.IO.Compression.CompressionMode]::Decompress))
    $decompressed = New-Object System.IO.MemoryStream
    $deflate.CopyTo($decompressed)
    $deflate.Dispose()
    
    # encode to string
    return [System.Text.Encoding]::UTF8.GetString(@($decompressed.ToArray()))
}

To inflate from python side something similar to this is required:

import redis
import zlib

# Get / Check Connection
conn = redis.Redis(
            host=LIVE_SERVER,
            port=REDIS_PORT,
            decode_responses=False)
print(conn.ping())

# Get key from redis and inflate
blob = zlib.decompress(conn.get(KEY) , -15)