Redis Cheatsheet 18 — Geo and Specialized Data

GEOADD pois 13.4 52.5 "Brandenburg Gate"
GEOADD pois 13.5 52.6 "Tegel" 13.3 52.4 "Schoenefeld"

GEOPOS pois "Brandenburg Gate"
GEODIST pois a b km
GEOHASH pois "Brandenburg Gate"

GEOSEARCH pois FROMMEMBER "Brandenburg Gate" BYRADIUS 5 km
GEOSEARCH pois FROMLONLAT 13.4 52.5 BYRADIUS 10 km COUNT 20 ASC
GEOSEARCH pois FROMLONLAT 13.4 52.5 BYBOX 10 10 km ASC

def add_driver(driver_id, lat, lng):
    redis.geoadd("drivers", lng, lat, driver_id)

def nearby_drivers(lat, lng, radius_km=5, limit=10):
    return redis.geosearch(
        "drivers",
        longitude=lng, latitude=lat,
        radius=radius_km, unit="km",
        count=limit, sort="ASC",
    )

def remove_driver(driver_id):
    redis.zrem("drivers", driver_id)

PFADD uniques:2026-01-15 user1 user2 user3
PFCOUNT uniques:2026-01-15
PFMERGE uniques:week uniques:mon uniques:tue uniques:wed

def track(user_id):
    today = date.today().isoformat()
    redis.pfadd(f"dau:{today}", user_id)

def dau(date):
    return redis.pfcount(f"dau:{date}")

def wau(date):
    days = [f"dau:{(date - timedelta(days=i)).isoformat()}" for i in range(7)]
    return redis.pfcount(*days)

def mark_online(user_id):
    today = date.today().isoformat()
    redis.setbit(f"online:{today}", user_id, 1)

def is_online_today(user_id):
    return redis.getbit(f"online:{date.today().isoformat()}", user_id)

def count_online_today():
    return redis.bitcount(f"online:{date.today().isoformat()}")

BITOP AND result a b              # users online both days
BITOP OR result a b
BITOP XOR result a b
BITOP NOT result a

# Insert events into stream
redis.xadd("clicks", {"page": "/x"}, maxlen=1_000_000)

# Recent count
end_id = "+"
start_id = f"{int((time.time() - 60) * 1000)}-0"
count = redis.xlen_stream_range("clicks", start_id, end_id)

def add_event(user_id):
    score = time.time()
    redis.zadd("recent", {f"{user_id}:{uuid4()}": score})

def trim_old(seconds_ago=3600):
    cutoff = time.time() - seconds_ago
    redis.zremrangebyscore("recent", 0, cutoff)