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Caching & Redis

Cache-aside, TTL, invalidation, hot keys, and in-memory lookup patterns at scale.

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How to mock Redis geospatial commands (GEOADD) in Python

Implement a lightweight Python mock of Redis geospatial commands (GEOADD, GEODIST, GEOSEARCH) using the Haversine formula for testing without a Redis server.

redis geospatial haversine
Python 
import math
import heapq


class MockRedisGeo:
    def __init__(self):
        self.members = {}

    def geoadd(self, key, longitude, latitude, member):
        if key not in self.members:
            self.members[key] = {}
        self.members[key][member] = (longitude, latitude)

    def geodist(self, key, member1,…
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