Implement in memory caching
Via Spring Cache, up to ie 50 events, with 1 hour TTL https://stackoverflow.com/questions/8181768/can-i-set-a-ttl-for-cacheable
Via Spring Cache, up to ie 50 events, with 1 hour TTL https://stackoverflow.com/questions/8181768/can-i-set-a-ttl-for-cacheable