patterns

Apply architectural patterns for wellcrafted library code with Result types.

35|4|Updated Dec 18, 2024
One-click install
npx skills add https://github.com/wellcrafted-dev/wellcrafted --skill patterns-wellcrafted-dev
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: patterns
Source: https://github.com/wellcrafted-dev/wellcrafted/tree/main/skills/patterns
Command: npx skills add https://github.com/wellcrafted-dev/wellcrafted --skill patterns-wellcrafted-dev

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides a comprehensive guide to implementing robust and maintainable code using the wellcrafted library, focusing on architectural best practices and error handling.

Core Features & Use Cases

  • Control Flow: Learn to linearize try-catch blocks using tryAsync for more readable code.
  • Service Layer Pattern: Understand how to build reusable services that return Result types for predictable outcomes.
  • Error Composition: Master the technique of chaining errors across different layers of your application.
  • Use Case: Refactor a complex request handling function to use tryAsync guards, making the success path clear and error handling explicit.

Quick Start

Apply the patterns skill to refactor the provided handleRequest function to use tryAsync guards for improved control flow.

Frequently Asked Questions about patterns

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

FAQPage Schema
How do I linearize try-catch blocks in TypeScript for better control flow?

You can linearize try-catch blocks in TypeScript by using the `tryAsync` guard pattern, which makes the success path clear and error handling explicit without nested blocks. This approach refactors complex functions into readable, sequential code.

What is the service layer pattern for handling errors with Result types?

The service layer pattern involves building reusable services that return `Result` types, ensuring predictable outcomes. This architecture separates business logic from error handling, making your application robust and easier to maintain.

How do I chain errors across different layers of a TypeScript application?

To chain errors across boundaries, you use error composition techniques to pass contextual information up through different application layers. This preserves the original error context while adding layer-specific details for robust debugging.

Can I use factory function composition to build maintainable code architecture?

Yes, factory function composition allows you to build maintainable code architecture by combining smaller, focused factory functions into complex services. This pattern promotes modularity and reusability across your application.

What is the single-or-array pattern in TypeScript service design?

The single-or-array pattern is an architectural design pattern that allows service functions to accept either a single item or an array of items. This flexibility simplifies API design and makes service consumption more intuitive.

Does this architectural pattern approach require the wellcrafted library?

Yes, these architectural patterns are specifically designed to utilize the `wellcrafted` library, leveraging its specific control flow utilities and Result types for optimal code architecture.