Python

Connect to Arctickey from Python using redis-py.

Installation#

Terminal

pip install redis

Basic Usage#

Python

import redis
import os

r = redis.Redis(
    host='eu.arctickey.com',
    port=6379,
    password=os.environ.get('ARCTICKEY_PASSWORD'),
    ssl=True,
    ssl_cert_reqs=None,
    decode_responses=True,
)

# Test connection
print(r.ping())  # True

# Basic operations
r.set('key', 'value')
value = r.get('key')

# With expiration
r.setex('session', 3600, 'user:123')

# Increment
r.incr('counter')

Connection URL#

Python

r = redis.from_url(
    os.environ.get('ARCTICKEY_URL'),
    decode_responses=True,
)
# URL: rediss://:password@eu.arctickey.com:6379

Data Structures#

Hashes#

Python

r.hset('user:1', mapping={
    'name': 'Alice',
    'email': 'alice@example.com',
})

user = r.hgetall('user:1')

Lists#

Python

r.lpush('queue:jobs', 'job1', 'job2')
job = r.rpop('queue:jobs')

Sets#

Python

r.sadd('tags:post:1', 'python', 'redis')
tags = r.smembers('tags:post:1')

Sorted Sets#

Python

r.zadd('leaderboard', {'player1': 100, 'player2': 200})
top = r.zrevrange('leaderboard', 0, 9, withscores=True)

Django#

Python

# settings.py
CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.redis.RedisCache',
        'LOCATION': os.environ.get('ARCTICKEY_URL'),
        'OPTIONS': {
            'ssl_cert_reqs': None,
        }
    }
}

Python

from django.core.cache import cache

cache.set('key', 'value', timeout=300)
value = cache.get('key')

FastAPI#

Python

from fastapi import FastAPI
import redis
import json

app = FastAPI()
r = redis.from_url(os.environ.get('ARCTICKEY_URL'))

@app.get("/products")
async def get_products():
    cached = r.get("products:all")
    if cached:
        return json.loads(cached)
    
    products = await fetch_from_db()
    r.setex("products:all", 300, json.dumps(products))
    return products

Async#

Python

import redis.asyncio as redis

async def main():
    r = redis.from_url(os.environ.get('ARCTICKEY_URL'))
    
    await r.set('key', 'value')
    value = await r.get('key')
    
    await r.close()