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CodeSignal

Introduction to Redis with Java and Jedis: The Basics

via CodeSignal

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Overview

Redis is an in-memory data structure store used as a database, cache, and message broker. This course introduces the essential concepts and operations of Redis, including connecting to a Redis server, working with numbers, performing basic operations, and handling data structures such as lists and hashes using Java and the Jedis library.

Syllabus

  • Unit 1: Setting up and Connecting to a Redis Server
    • Connecting to Redis with Jedis
    • Change Key-Value Data
    • Deleting Keys
    • Stimulating a Simple User Session Store
  • Unit 2: Working with Numbers in Redis
    • Numbers and Operations in Action
    • Change Increment Logic to Use a Custom Step
    • Fixing Numeric Value Errors
    • Checking for Existence
    • Working with Floats
    • Track and Update Social Media Stats
  • Unit 3: Introduction to Redis Lists
    • Lists and Common Operations
    • Simulating a Task Queue
    • Finding the Index
    • Simulating a Message Queue
    • Debugging List Access
    • Track Shopping Cart Size with LLEN
    • Simulating a Simple Chat System
  • Unit 4: Understanding Redis Hashes
    • Using Redis Hashes
    • Adding an Additional Field
    • Adding Basic Validation
    • Fix Incorrect Field Deletion
    • Simulate a User Login Counter
    • Comprehensive User Data Management with Redis Hashes

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