--- title: "#api-basics articles | Hashnode" description: "Explore 512 articles tagged #api-basics on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/api-basics" --- Tag # #api-basics 512 posts · 228 followers [Joseph Udomason](https://hashnode.com/@josephudomason) · [Oct 16](https://hashnode.com/posts/rest-api-documentation-example-requests-responses-and-errors/6ad3b8f2a869afad9628da4d) ### [REST API Documentation Example: Requests, Responses, and Errors](https://joedev001.hashnode.dev/rest-api-documentation-example-requests-responses-and-errors?utm_source=hashnode&utm_medium=feed) A practical API reference showing how to document endpoints, authentication, request bodies, response schemas, status codes, and integration behavior. 4 min read · [joedev001.hashnode.dev](https://joedev001.hashnode.dev/rest-api-documentation-example-requests-responses-and-errors?utm_source=hashnode&utm_medium=feed) [Ayush Jain](https://hashnode.com/@ayushjjainn) · [Sep 14](https://hashnode.com/posts/rest-api-design-express/6aa7a1d78469514ba6ea41e6) ### [REST API Design Made Simple with Express.js](https://ayushjjainn.hashnode.dev/rest-api-design-express?utm_source=hashnode&utm_medium=feed) Learn REST API design with Express.js from scratch: resources, HTTP methods, CRUD, clean routes, and status codes, explained simply for beginners. 18 min read · [ayushjjainn.hashnode.dev](https://ayushjjainn.hashnode.dev/rest-api-design-express?utm_source=hashnode&utm_medium=feed) [Vibe Seeker](https://hashnode.com/@vibeseeker) · [Aug 14](https://hashnode.com/posts/one-inline-button-for-everyone-parameters-authentication-and-callbacks-in-a-telegram-mini-app/6a7f2644532648bbb64dd789) ### [One Inline Button for Everyone: Parameters, Authentication, and Callbacks in a Telegram Mini App](https://vibeseeker.hashnode.dev/one-inline-button-for-everyone-parameters-authentication-and-callbacks-in-a-telegram-mini-app?utm_source=hashnode&utm_medium=feed) Solve Telegram Mini App WebView gotchas: handle OAuth redirects, media permissions, deep links, and seamless cross-browser session sync. 13 min read · [vibeseeker.hashnode.dev](https://vibeseeker.hashnode.dev/one-inline-button-for-everyone-parameters-authentication-and-callbacks-in-a-telegram-mini-app?utm_source=hashnode&utm_medium=feed) [Richel E.](https://hashnode.com/@richele) · [May 26](https://hashnode.com/posts/ai-lead-capture-system-for-field-service-businesses-using-apis-and-automation/6a160821da253d50d4e8a599) ### [Building an AI-Powered Lead Capture System for Field Service Businesses Using APIs and Automation](https://richele.hashnode.dev/ai-lead-capture-system-for-field-service-businesses-using-apis-and-automation?utm_source=hashnode&utm_medium=feed) Learn how to build AI lead capture system for field service businesses using APIs, voice agents, CRM integrations, and automated follow-up workflows. 10 min read · [richele.hashnode.dev](https://richele.hashnode.dev/ai-lead-capture-system-for-field-service-businesses-using-apis-and-automation?utm_source=hashnode&utm_medium=feed) [Victor Wanyungu](https://hashnode.com/@vwanyungu) · [May 10](https://hashnode.com/posts/rate-limiting/6a00ffd9e3eebc2e20d3428e) ### [Rate limiting](https://discovertech.hashnode.dev/rate-limiting?utm_source=hashnode&utm_medium=feed) Getting the rate limiting strategy and layer right early saves a lot of pain later. Here's how to get started 5 min read · [discovertech.hashnode.dev](https://discovertech.hashnode.dev/rate-limiting?utm_source=hashnode&utm_medium=feed) [Hitakshi](https://hashnode.com/@hitakshi) · [May 10](https://hashnode.com/posts/rest-api-design-made-simple-with-express-js/6a00cba3e3eebc2e20b4ebdd) ### [REST API Design Made Simple with Express.js](https://hitakshi120.hashnode.dev/rest-api-design-made-simple-with-express-js?utm_source=hashnode&utm_medium=feed) What is a REST API? REST stands for: Representational State Transfer But don’t worry about the long name. The easiest way to understand REST API is: A REST API allows clients and servers to co 5 min read · [hitakshi120.hashnode.dev](https://hitakshi120.hashnode.dev/rest-api-design-made-simple-with-express-js?utm_source=hashnode&utm_medium=feed) [Ivan Davidov](https://hashnode.com/@idavidov) · [Apr 16](https://hashnode.com/posts/rest-api-testing-guide/69e0d28d94b913c913286170) ### [REST API Testing: What Every QA Engineer Must Know](https://idavidov.eu/rest-api-testing-guide?utm_source=hashnode&utm_medium=feed) A practical guide to HTTP methods, status codes, payload testing, and schema validation for API testers 20 min read · [idavidov.eu](https://idavidov.eu/rest-api-testing-guide?utm_source=hashnode&utm_medium=feed) [CyberFreak999](https://hashnode.com/@CyberFreak999) · [Mar 20](https://hashnode.com/posts/api-authentication-explained-part-2/69bd1179b238fd45a389a437) ### [API Authentication Explained (Part 2): API Gateways, Token Validation and Authorisation](https://cyberfreak.hashnode.dev/api-authentication-explained-part-2?utm_source=hashnode&utm_medium=feed) Explore how API gateways enforce authentication, validate tokens and implement fine-grained authorisation in modern API architectures. 3 min read · [cyberfreak.hashnode.dev](https://cyberfreak.hashnode.dev/api-authentication-explained-part-2?utm_source=hashnode&utm_medium=feed) [CyberFreak999](https://hashnode.com/@CyberFreak999) · [Mar 2](https://hashnode.com/posts/the-fundamentals-of-api-security-part-1/69a563c8fc6453a5f17e7200) ### [The Fundamentals of API Security: Part 1](https://cyberfreak.hashnode.dev/the-fundamentals-of-api-security-part-1?utm_source=hashnode&utm_medium=feed) Learn the foundations of API security, including governance, secure design principles, and risk management strategies. 4 min read · [cyberfreak.hashnode.dev](https://cyberfreak.hashnode.dev/the-fundamentals-of-api-security-part-1?utm_source=hashnode&utm_medium=feed) [Devadath KV](https://hashnode.com/@devadathkv) · [Feb 12](https://hashnode.com/posts/apex-api/698df040dd934e70dd50225f) ### [Apex API](https://oauth-20.hashnode.dev/apex-api?utm_source=hashnode&utm_medium=feed) Learn what an API is and how to use GET, POST, PUT, and DELETE requests with Postman and JavaScript fetch(). A beginner-friendly guide with examples using A 7 min read · [oauth-20.hashnode.dev](https://oauth-20.hashnode.dev/apex-api?utm_source=hashnode&utm_medium=feed)