Facebook Messenger Review Our Top Pick
Messenger is a real-time, mobile-first messaging service utilized by both consumers and companies. We have updated the backend system extensively over the years in order to facilitate that transformation. A read-through caching service for queries, Iris to queue writes to subscribers (such the storage service and devices), and a storage service to store message history were created from the original monolithic service. This design made Messenger more successful by making it suitable for a mobile-first environment....