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go-json-file-reading

Load and validate JSON files in Go with contextual error handling.

130|8|Updated Jan 23, 2026
Search Tags:#error handling#validation#configuration#go#json#generics#file io
One-click install
npx skills add https://github.com/sandgardenhq/sgai --skill go-json-file-reading
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: go-json-file-reading
Source: https://github.com/sandgardenhq/sgai/tree/main/cmd/sgai/skel/.sgai/skills/coding-practices/go-json-file-reading
Command: npx skills add https://github.com/sandgardenhq/sgai --skill go-json-file-reading

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Reading JSON files in Go often fails due to missing files, permission issues, or malformed data, and vague errors slow debugging. This Skill provides clear, actionable error handling, validation, and context so developers can reliably load configuration and data files.

Core Features & Use Cases

  • Comprehensive Error Handling: Distinguish file-not-found, permission, and other I/O errors with contextual messages that include the file path and operation.
  • JSON Parsing Insights: Surface syntax and type errors with offsets/fields; validate required fields after unmarshal to ensure data integrity.
  • Reusability & Defaults: Provide generic loaders, optional defaults, and patterns for pointer fields and validation of slices/maps.
  • Use Case: Load a config.json at startup, fail fast with a precise error if the file is missing or malformed, or apply safe defaults when appropriate.

Quick Start

Ask to load a JSON config file in Go with specific handling for not found, permission, and syntax/type errors, validating required fields and returning actionable messages.

Frequently Asked Questions about go-json-file-reading

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

FAQPage Schema
How do I handle JSON file reading errors in Go like file-not-found and permission denied?▼

JSON file reading errors in Go can be handled by distinguishing file-not-found, permission, and I/O issues with contextual messages that include the file path and operation for actionable debugging.

How do I validate required fields after loading a JSON configuration file in Go?▼

Validating required fields after loading a JSON configuration file in Go involves unmarshaling the data and explicitly checking necessary fields to ensure data integrity before application startup.

Can I create a reusable generic JSON loader in Go with default values?▼

You can create a reusable generic JSON loader in Go using generics to implement type-safe loading patterns, apply optional defaults, and handle pointer fields for slices and maps.

What is the best way to surface JSON syntax and type errors during Go file parsing?▼

The best way to surface JSON syntax and type errors during Go file parsing is to provide parsing insights that highlight offsets and fields, enabling precise identification of malformed data.

Does Go JSON parsing support failing fast with precise errors for malformed config files?▼

Go JSON parsing supports failing fast at startup by returning precise, contextual error messages when a configuration file is missing, malformed, or fails required field validation.

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