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Change Streams turn MongoDB's oplog into an ordered, resumable event feed. Here's what they buy you over polling or dual writes, a working filtered consumer example, and where they fall short.
Implement MongoDB Change Streams to propagate real‑time events from a replica set to downstream services. The guide covers minimal architecture, consumer design, resume‑token persistence, and operational checks.
Learn how to implement MongoDB Change Streams for real-time synchronization, focusing on resume tokens, oplog rollover risks, and when to move to a message queue.