Pinata

This article summarizes the pitfalls and solutions when using the group feature with Pinata’s Files API v3. Background There are cases where you want to manage files uploaded to Pinata by groups and retrieve only files belonging to a specific group. For example, storing input images used in an NFT registration form in an “input” group and allowing image selection only from that group. Pitfalls 1. Legacy API and V3 API File Management Are Separate Problem: Files uploaded with the legacy API (pinFileToIPFS) cannot be retrieved with the V3 API (/v3/files). The reverse is also true. ...

Notice: 2025-06-14 The development progress is summarized at the following link. https://zenn.dev/nakamura196/books/41693d2d017082 Overview As part of learning blockchain technology, I created a prototype management system for digital cultural heritage. Since the purpose is learning blockchain, there are many missing features, but I plan to add and improve them in the future. https://digital-heritage-five.vercel.app/ Technologies Used The Ethereum Sepolia network is used. Since the purpose is blockchain learning and prototype development, a test network is used. Pinata is used as the hosting service for the distributed file storage IPFS. https://pinata.cloud/ ...