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Skill Topic ยท Cinematic

๐Ÿ“˜ MongoDB โ€” Change Streams

Real-time database changes listen karo โ€” live notifications, sync, audit! ๐Ÿ“ก

Topic 1
โœจ

๐Ÿ“Œ 1. Change Streams Kya Hai?

๐Ÿ’ก

Insert / Update / Delete / Replaceโ€ฆ

๐Ÿ”‘

oplog based (replica set required!)

โšก

Resumable (disconnect ke baadโ€ฆ

๐ŸŽฏ

Filterable (specific changes hiโ€ฆ

Topic 2
๐Ÿ’ก ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ 2. Requirements

๐Ÿ’ก ` โ”Œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ” โ”‚ โœ… Replica set or sharded cluster โ”‚ โ”‚ โœ…โ€ฆ
Topic 3
๐Ÿ”’

๐Ÿ“Œ 3. Basic Usage (mongosh)

๐ŸŽฏ `javascript // โ•โ•โ• Watch a collection โ•โ•โ• const changeStream = db.orders.watch()โ€ฆ
Topic 4
โญ

๐Ÿ“Œ 4. Operation Types

โญ `javascript // โ•โ•โ• All operation types โ•โ•โ• // "insert" โ€” New document inserted //โ€ฆ
Topic 5
๐Ÿ“ฅ ๐Ÿ“ฅ ๐Ÿง  ๐Ÿ”ฌ ๐Ÿ’ก ๐ŸŽฏ

๐Ÿ“Œ 5. Full Document Options

๐Ÿ”‘ `javascript // โ•โ•โ• Get full document on updates โ•โ•โ• const changeStream =โ€ฆ
Topic 6
๐Ÿ“ฅ โš™๏ธ ๐Ÿ”ฌ ๐Ÿ’ก

๐Ÿ“Œ 6. Filtering Changes (Pipeline)

โœจ `javascript // โ•โ•โ• Watch specific operations โ•โ•โ• const changeStream = db.orders.watch([ {โ€ฆ
Topic 7
๐Ÿ”’

๐Ÿ“Œ 7. Resume Tokens

๐ŸŒŸ `javascript // โ•โ•โ• Resume after disconnect โ•โ•โ• let resumeToken = null const changeStreamโ€ฆ
Topic 8
๐Ÿ“ฅ โš™๏ธ ๐Ÿ”ฌ ๐Ÿ’ก

๐Ÿ“Œ 8. Node.js Change Stream

๐Ÿš€ `javascript const { MongoClient } = require("mongodb") async function watchChanges() {โ€ฆ
Topic 9
๐Ÿ“ฅ โš™๏ธ ๐Ÿ”ฌ ๐Ÿ’ก

๐Ÿ“Œ 9. Python Change Stream

๐Ÿ“š `python from pymongo import MongoClient import threading client =โ€ฆ
Topic 10
๐Ÿ’ก ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ 10. Practical Use Cases

๐Ÿ’ก `javascript // โ•โ•โ• 1. Real-time notifications โ•โ•โ• const stream = db.messages.watch([ {โ€ฆ
Topic 11
๐Ÿ“ฅ โš™๏ธ ๐Ÿ”ฌ ๐Ÿ’ก

๐Ÿ“Œ 11. Best Practices

๐ŸŽฏ ` โœ… DO: โ€ข Resume token persist karo (DB/Redis me) โ€” crash recovery! โ€ข Pipeline me earlyโ€ฆ
Topic 12
โญ

โœ… Summary

โญ KEY POINTS: - Change Streams = real-time event stream (oplog based) - Replica setโ€ฆ
Quick Quiz
๐Ÿง  QUIZ TIME

Quiz โ€” Question 1

๐Ÿ“˜ MongoDB โ€” Change Streams ka sabse sahi definition kya hai?

Complete! ๐ŸŽ‰
COMPLETE

๐Ÿ“˜ MongoDB โ€” Change Streams Complete!

Aliens School ยท HIEN ยท Cinematic Knowledge

โœ…

๐Ÿ“˜ MongoDB โ€” Change Streams Complete

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