Go Web Expertv2.3.1

Build a production-ready REST API for user CRUD operations with input validation, error handling, and testability. This scenario ensures global state is avoided, validation runs on all inputs, and every error is explicitly handled.

Develop an order processing microservice that validates order payloads, enforces business rules, and logs errors with context. The service uses dependency injection and table-driven tests for reliability.

Implement a simple health check handler that returns service status by checking dependencies. The handler follows zero global state rules and includes tests for both success and failure cases.

Create an HTTP handler for secure file uploads with content-type validation, size limits, and proper error responses. The handler is a method on a server struct, tested with httptest.

Monetize web APIs built with this skill by charging per request or subscription. The skill ensures high-quality, testable code reduces maintenance costs and increases API reliability.

Offer consultancy services to build production-grade Go web services for clients. The skill's non-negotiable rules guarantee consistent, maintainable code, allowing consultants to deliver faster with fewer bugs.

Develop a multi-tenant SaaS platform (e.g., CRM, project management) using Go. The skill's emphasis on zero global state and input validation ensures tenant isolation and data integrity.