React/Rust + Axum Multi-Tenant Starter App

The guide demonstrates how to build a B2B React application with PropelAuth for authentication and a Rust/Axum backend for protected APIs, covering signup, login, logout, user account details, authenticated requests, and organization membership. It begins by configuring PropelAuth hosted authentication pages and optional capabilities such as social login, user metadata, profile pictures, and B2B organization support, then integrates the React SDK through an application-wide AuthProvider and React Router. React components use PropelAuth hooks and wrappers to conditionally render content, redirect users to hosted login, signup, and organization-creation pages, display user data, and attach access tokens as Bearer credentials when calling backend endpoints. On the backend, the Rust application initializes the PropelAuth SDK using environment-based credentials, applies an Axum authentication layer to validate tokens, returns user information through a protected whoami route, and verifies organization membership before returning organization-specific data. The walkthrough also addresses local CORS concerns through a React proxy configuration and concludes that managed authentication reduces the need to build login interfaces, email flows, invitations, and token-validation logic from scratch.

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