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Meteor's DDP and pub/sub make real-time easy, but every subscription mirrors data into client memory and forces server diff computation. Learn to narrow publications with field projections and filters, and when to swap subscriptions for REST calls.
Meteor’s pub/sub with Minimongo gives server-authoritative real-time updates without polling, but requires narrow publications and careful handling of client cache and server state.
Meteor's publication/subscription model keeps client caches in sync by streaming MongoDB cursor diffs over DDP. This guide explains the mergebox, shows a worked active-tasks example, and covers parameterized pubs, field projections, reactive joins, and mergebox scaling limits.
Meteor methods run twice — once as a client-side simulation, once on the server. Here's how latency compensation actually reconciles, where it breaks, and how to verify it.
Learn how to implement the secure Meteor 2.x pattern using Publications for reactive reads and Methods for validated writes to prevent data leaks and ensure performance.
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