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CodeSignal

Error Handling and Fault Tolerance

via CodeSignal

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Overview

This course covers error handling mechanisms in Elixir, including try/catch/rescue, the with statement, Task module for concurrent error handling, and supervisors for fault tolerance.

Syllabus

  • Unit 1: Error Handling with Try Rescue
    • Handle List Errors Gracefully
    • Fix Integer Parsing with Rescue
    • Map Fetching Without Surprises
    • Safe File Reading and Division
  • Unit 2: Chaining Validations with With
    • Fix the Validation Chain
    • Chain Product Validations with With
    • Registration Form Validation Challenge
  • Unit 3: Concurrent Error Handling
    • Make Concurrent Tasks Return Safely
    • Add a Failing File Source Concurrently
    • Concurrent Tasks with Results Summary
  • Unit 4: Supervisor Pattern Essentials
    • Switch Supervisor Strategy and Observe
    • Fix Supervisor and Registry Setup
    • Get Worker PIDs by ID
    • Build and Test a Supervised System

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