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Real-Time Messaging and Event Streaming📡

Intermediate→Advanced

Redis 8

Build real-time applications with Redis Pub/Sub and Streams. Master message patterns, consumer groups, and event-driven architectures for scalable distributed systems.

6

Sections

23

Lessons

31

Challenges

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23 lessons and 31 challenges, all 100% free.

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Introduction to Pub/Sub

Managing Subscriptions

Pattern Subscriptions

Pub/Sub Message Delivery(Sign in required)

Beginner+10 Mana

PUBLISH Return Value(Sign in required)

Beginner+10 Mana

Pub/Sub Message Persistence and Limitations

Pattern Subscription Wildcards(Sign in required)

Intermediate+20 Mana

Pub/Sub Channel Count(Sign in required)

Beginner+10 Mana

Pub/Sub Channel Naming(Sign in required)

Beginner+10 Mana

Real-Time Notifications

Offline User Message Delivery(Sign in required)

Intermediate+20 Mana

Sharded Pub/Sub for Redis Cluster

Sharded Pub/Sub Characteristics(Sign in required)

Beginner+10 Mana

Building Chat with Pub/Sub

Real-Time Chat Message Flow(Sign in required)

Intermediate+20 Mana

Redis Streams Overview

Redis Streams Fundamentals

XADD Auto-Generated IDs(Sign in required)

Beginner+10 Mana

Stream Trimming and Memory Management

XREAD BLOCK with $ ID(Sign in required)

Intermediate+20 Mana

Stream Entry IDs and Metadata Operations

Stream Commands(Sign in required)

Intermediate+20 Mana

XTRIM Max Length(Sign in required)

Intermediate+20 Mana

Stream Entry ID Format(Sign in required)

Beginner+10 Mana

XREAD Command Syntax(Sign in required)

Beginner+15 Mana

Introduction to Consumer Groups

Understanding Consumer Groups

XREADGROUP New Messages ID(Sign in required)

Intermediate+20 Mana

Consumer Group Delivery(Sign in required)

Beginner+10 Mana

Acknowledging Messages

Purpose of XACK(Sign in required)

Intermediate+20 Mana

Acknowledging Stream Messages(Sign in required)

Beginner+10 Mana

Managing Consumer Groups

Setting Up a Consumer Group(Sign in required)

Intermediate+20 Mana

XGROUP Management Commands(Sign in required)

Intermediate+20 Mana

Message Claiming with XCLAIM

Handling Consumer Failures

Dead Letter Queues and Delivery Guarantees

Achieving Exactly-Once Processing(Sign in required)

Advanced+30 Mana

Idempotency in Stream Processing

XPENDING for Monitoring(Sign in required)

Intermediate+20 Mana

Dead Letter Queue Threshold(Sign in required)

Beginner+10 Mana

Handling Poison Messages with Dead-Letter Patterns

XCLAIM for Fault Tolerance(Sign in required)

Intermediate+20 Mana

XCLAIM Ownership Transfer(Sign in required)

Intermediate+20 Mana

At-Least-Once Delivery Properties(Sign in required)

Intermediate+20 Mana

Delivery Semantics Comparison(Sign in required)

Intermediate+20 Mana

Event Sourcing with Redis Streams

Messaging Pattern Selection(Sign in required)

Intermediate+20 Mana

Audit Logs with Redis Streams

Purpose of Snapshots in Event Sourcing(Sign in required)

Intermediate+20 Mana

Reconstructing State from Event Streams

Event Sourcing Concepts(Sign in required)

Intermediate+20 Mana

Pub/Sub vs Streams Fan-Out(Sign in required)

Intermediate+20 Mana

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23 interactive lessons and 31 hands-on challenges — learn in VS Code, Cursor, or the web.