api

Understand HTTP POST vs PUT differences: POST for server-assigned resource creation in collections (non-idempotent), PUT for client-specified URI creation/replacement (idempotent). REST API best practices, RFC guidance, and examples.

Learn best practices for JSON null representation across all data types. Understand conventions for integers, strings, collections, and when to use null vs. omitting fields.

Comprehensive guide to REST API error handling with proper HTTP status codes, JSON/XML response formats, and storage quota management for client-friendly applications.

Learn how to use cURL with username and password authentication. Complete guide covering basic auth, security considerations, and troubleshooting authentication errors.

Learn best practices to handle specific API errors in JavaScript promise chains, perform redirects without re-renders or store conflicts. Use wrappers, Axios interceptors for centralized fetch error handling in React apps.

Explore the fundamental differences between OAuth 2.0 and OAuth 1.0 authentication protocols. Learn about security models, implementation complexity, and factors for choosing between these authorization frameworks.

Learn to retrieve Android SDK version and API level programmatically using Build.VERSION.SDK_INT in Java and Kotlin. Includes runtime checks, compatibility table, and best practices for android sdk versions and android api levels.

Handle Shopify app reinstallation from Uninstalled tab without OAuth code. Detect 401 errors, trigger re-OAuth for access token regeneration, and use APP_UNINSTALLED webhook for clean sessions.

Resolve Zoho Books API error 37034 'Select associated bill number or bill type' when creating vendor credits without bill_id. Use bill_type 'OTHER' or bill_number, add account_id. Sample payload and steps to create standalone credits.

Fix Express.js routes returning undefined from Mongoose. Use async/await or .then() with try/catch so res.json sends findById result after promise resolves.

Learn how to integrate Bulk SMS API (e.g., bulkmsg.in) with PHP for instant OTP delivery. Complete code example, error handling, retries, and best practices for user registration and login using cURL and secure OTP storage.

Learn how to fix Express.js res.json() returning only the last element of an array instead of the full array. Solutions for proper array handling in Express APIs.

Troubleshoot Django DRF JWT authentication errors with UpdateAPIView. Learn to fix 'Authentication credentials were not provided' with proper token formatting, authentication classes, and permission settings.

Count physical USB ports on Windows using Go. Stable enumeration via SetupAPI & IOCTL ignores connected devices. Code examples for USB root hub query.

Learn how to implement Facebook authentication for links to prevent anonymous access. Discover API methods, OAuth flows, and security best practices for link verification.

Complete guide to implementing WebSocket in Flutter for real-time betting odds comparison using odds-api.io API with connection stability and error handling.