A practical walkthrough of integrating Web3 authentication into a Flutter app using the Web3Auth Plug and Play SDK with Sapphire Devnet. Covers dashboard configuration (project setup, redirect URLs, chain/network settings, authentication providers, and branding), Android-specific Gradle and deep link setup, and SDK initialization in Flutter. The author also shares a hard-learned lesson: the Flutter SDK has limited Web3Auth support compared to web, and ultimately recommends Reown (powered by WalletConnect) as a working alternative for social and external wallet authentication in Flutter.
Table of contents
A Practical Guide to Web3 Authentication for Modern ApplicationsGet Sewmini Kavindya ’s stories in your inbox418 Impressions