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CodeSignal

Refactoring for Production Readiness

via CodeSignal

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Overview

This course strengthens learners' backend development skills by introducing production-grade practices. It focuses on replacing in-memory logic with persistent storage, enforcing professional validation standards, and abstracting data access into repositories. By simulating real-world persistence and layering, learners prepare for transition into full-stack or database-backed applications.

Syllabus

  • Unit 1: Professional Validation with Zod
    • Observe and Experiment: Zod-Powered Task Validation in Action
    • Define Your First Zod Schemas for a Task API
    • Validate and Create Tasks: Implement the POST Endpoint
    • Update with Confidence: Validate PUT and PATCH Requests
  • Unit 2: Repository Pattern Basics
    • Observe and Explore: The Repository Pattern in Action
    • Define the Contract: Create the Task Repository Interface
    • Abstracting Persistence with the Repository Pattern Example
    • Build the Engine: Implement the In-Memory Task Repository
  • Unit 3: File Persistence with JSON
    • Observe and Experiment: File-Based Persistence in Action
    • Fix the Silent Fail: Debug File-Based Task Persistence
    • File-Based Task Repository Example

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