skills.rest
FelixRauch
FelixRauchCOMMUNITY
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ios-networking

Implement URLSession async/await REST clients with response validation and Codable decoding.

Updated May 10, 2026
Search Tags:#async await#pagination#websocket#api client#reachability#urlsession#http error handling
One-click install
npx skills add https://github.com/FelixRauch/medat-figuren --skill ios-networking-felixrauch
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ios-networking
Source: https://github.com/FelixRauch/medat-figuren/tree/main/.agents/skills/ios-networking
Command: npx skills add https://github.com/FelixRauch/medat-figuren --skill ios-networking-felixrauch

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

iOS apps often fail or behave unpredictably when network calls lack correct async/await structure, error handling, cancellation support, and robust request/response validation.

Core Features & Use Cases

  • Async URLSession Networking: Use modern URLSession async/await APIs for REST requests, downloads, and uploads in Swift 6.3+.
  • Production-Grade Error Handling: Validate HTTP status codes, map URLError cases, decode API error bodies, and distinguish transport failures from server errors.
  • Scalable Client Architecture: Build protocol- or closure-based API clients with request middleware for auth, logging, retry logic, pagination, and optional reachability awareness.

Quick Start

Use the ios-networking skill to implement a cancellable URLSession async/await API client that validates HTTP responses, decodes JSON into Codable models, retries transient failures with backoff, and monitors reachability using NWPathMonitor.

Frequently Asked Questions about ios-networking

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

FAQPage Schema
How do I implement an async URLSession API client with proper error handling?▼

An async URLSession API client uses Swift's async/await APIs to send REST requests, validate HTTP status codes, map URLError cases, and decode API error bodies to distinguish transport failures from server errors.

How do I handle pagination and cancellation in Swift async networking?▼

Pagination in Swift async networking uses AsyncSequence to stream paginated responses while respecting task cancellation, ensuring retry and stream loops abort gracefully when the user cancels the request.

What's the best way to monitor network reachability in an iOS app?▼

Network reachability monitoring in iOS uses NWPathMonitor to track connection status, allowing your API client to conditionally trigger requests or queue them until a stable connection becomes available.

Can I add request middleware for auth and logging to a URLSession client?▼

A URLSession client supports protocol- or closure-based request middleware to inject authentication tokens, add logging, implement retry logic with backoff, and manage pagination before sending HTTP requests.

Does URLSession async/await support WebSocket and background transfers?▼

URLSession async/await supports WebSocket connections and background transfer patterns, utilizing dedicated delegate handling to manage persistent downloads and uploads while the app operates in the background.

Why do my Codable network responses fail in Swift concurrency contexts?▼

Codable network responses fail in Swift concurrency when models lack Sendable conformance, which is required to safely pass decoded payloads across async/await boundaries without causing data races.

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