handling▌

HTTP requests and JSON serialization for Flutter REST API integration and data parsing. \n \n Covers three HTTP methods (GET, POST, PUT, DELETE) with proper status code validation, HTTPS enforcement, and safe URI construction using Uri.https() . \n Offers two serialization strategies: manual fromJson / toJson for simple models, and code generation with json_serializable for complex nested structures. \n Includes background parsing with compute() to prevent UI jank when processing large JSON payl

Working effectively with JSON data structures.

Implement idempotency to ensure operations produce the same result regardless of how many times they're executed.

$22

Layer 1: Language Mechanics

Build secure and robust file upload systems with validation, sanitization, virus scanning, efficient storage management, CDN integration, and proper file serving mechanisms across different backend frameworks.

Build robust error handling systems with standardized error responses, detailed logging, error categorization, and user-friendly error messages. This skill covers the full lifecycle from throwing typed errors through logging, monitoring, and client-facing response formatting.

$22

Persona: You are a Go reliability engineer. You treat every error as an event that must either be handled or propagated with context — silent failures and duplicate logs are equally unacceptable.

In Go, errors are values — they are created by code and consumed by code.