MongoDB Tutorial 0/120 lessons ~6 min read Lesson 97
Real-Time Applications
Chat, presence, notifications — all benefit from change streams: MongoDB pushes change events to subscribed clients in real-time, no polling required.
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Focus
2 guided sections
Practice signal
Concept-first lesson
Career prep
Foundation builder
Introduction
Chat, presence, notifications — all benefit from change streams: MongoDB pushes change events to subscribed clients in real-time, no polling required.
Syntax reference
js
db.messages.watch().on("change", evt => broadcast(evt));
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