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backend-service-patterns

Implement layered Go/Echo/pgx backend services with handlers, repositories, and transactional operations.

4|Updated Dec 13, 2025
Search Tags:#architecture#backend#golang#patterns#echo#pgx
One-click install
npx skills add https://github.com/linehaul-ai/linehaulai-claude-marketplace --skill backend-service-patterns
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: backend-service-patterns
Source: https://github.com/linehaul-ai/linehaulai-claude-marketplace/tree/main/.claude-plugin/golang-orchestrator/skills/backend-service-patterns
Command: npx skills add https://github.com/linehaul-ai/linehaulai-claude-marketplace --skill backend-service-patterns

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill outlines a layered architecture pattern for Go-based backend services, including handlers, services, repositories, and DTOs, using Echo and pgx.

Core Features & Use Cases

  • Layered Architecture: handler → service → repository → database
  • Patterns: handler struct with DI, create/list handlers
  • Parameter Parsing: robust query param parsing and validation

Quick Start

Create a new handler struct and wire a repository to build a new endpoint.

Frequently Asked Questions about backend-service-patterns

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

FAQPage Schema
How do I structure a layered backend API in Go with Echo and PostgreSQL?▼

Layered architecture separates concerns into handlers, services, and repositories. Handlers receive HTTP requests, services contain business logic, and repositories manage database queries through pgx. This pattern reduces coupling and makes testing and maintenance easier across your Go backend.

What's the best way to implement dependency injection in Go API handlers?▼

Use handler structs to hold dependencies like service instances, then inject them at initialization. This lets handlers access business logic and data layers without global state, making dependencies explicit and testable.

How do I parse and validate query parameters robustly in Go HTTP handlers?▼

Extract query parameters from the request, validate types and constraints, and return structured errors. Nil-safe parsing prevents crashes from missing or malformed input, ensuring your API handles edge cases gracefully.

Can I use Echo and pgx together for transactional operations?▼

Yes. Echo handlers can trigger service methods that manage pgx transactions across multiple queries. Wrap database operations in transactions to ensure consistency and rollback on failure.

What's the role of DTOs in Go backend service patterns?▼

Data Transfer Objects map between HTTP request/response formats and internal domain models. DTOs decouple API contracts from business logic, letting you evolve each independently.

How do I handle errors consistently across handlers, services, and repositories?▼

Define structured error types at each layer and propagate them upward. Handlers translate internal errors into appropriate HTTP status codes, providing clear feedback to clients while hiding implementation details.

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