Instagram Clone Frontend Part 4: Building a Lean Fetch-Based API Layer

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This installment of a tutorial series covers the networking layer for an Instagram-style frontend, which handles feed pagination, authenticated requests, photo uploads, and image resolution. The author opts for the browser's native fetch() API over Axios to avoid extra bundle weight and keep page loads fast. A shared helper automatically attaches a Bearer token from local storage to requests that need authentication. Login calls are shown with user-friendly error handling that surfaces backend messages. Finally, the article explains why uploads are resized and compressed into Base64 JPEGs in the browser before being sent to the server.

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