axiom-codable

Encode and decode JSON in Swift 6 with Codable patterns.

Updated Dec 23, 2025

Search Tags:#patterns #json #swift #encoding #decoding #codable

Ready to run

npx skills add https://github.com/pradeepmouli/swift-template --skill axiom-codable-pradeepmouli

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: axiom-codable
Source: https://github.com/pradeepmouli/swift-template/tree/main/.agents/skills/axiom-codable
Command: npx skills add https://github.com/pradeepmouli/swift-template --skill axiom-codable-pradeepmouli

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Swift Codable is powerful but its pitfalls can lead to brittle decoding/encoding logic. This Skill provides a structured guide to common patterns, anti-patterns, and practical approaches for robust JSON handling in Swift 6.x.

Core Features & Use Cases

Automatic synthesis best practices for Codable conformance
CodingKeys customization, nested containers, bridge types, and decoding strategies
Date handling, configuration-based decoding, and advanced patterns for complex data shapes

Quick Start

Use explicit decoding strategies and nested containers to convert complex JSON into Swift models.

Frequently Asked Questions about axiom-codable

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I decode nested JSON structures in Swift without writing brittle Codable logic?▼

Decode nested JSON in Swift by using explicit decoding strategies and nested containers to convert complex data shapes into Swift models. This approach applies automatic synthesis alongside CodingKeys customization to handle structure mismatches robustly across iOS and macOS apps.

What is the best way to handle dates and time zones when encoding and decoding JSON in Swift 6?▼

Handle dates and time zones in Swift 6 JSON encoding by applying principled date handling with proper time zone support. Using configuration-based decoding strategies ensures consistent date parsing and prevents common Codable pitfalls during encoding and decoding operations.

How do I customize CodingKeys and use manual Codable implementations for mismatched JSON structures?▼

Customize CodingKeys and implement manual Codable conformance to bridge mismatched JSON structures in Swift. Using nested containers and bridge types allows you to map complex or irregular JSON keys directly to your Swift model properties without brittle workarounds.

Can I use automatic synthesis for Codable conformance with complex enum representations in Swift?▼

Automatic synthesis supports Codable conformance for enum representations in Swift, but complex JSON shapes often require manual decoding strategies. Applying configuration-based decoding ensures enums are parsed correctly across different JSON representation formats in iOS and macOS apps.

Why does my Swift Codable decoding fail on structure mismatches across different API responses?▼

Swift Codable decoding fails on structure mismatches when automatic synthesis cannot handle irregular JSON shapes. Applying bridge types, nested containers, and manual Codable implementations resolves these mismatches by explicitly mapping varying JSON structures to stable Swift models.