React/Flask Starter App

A walkthrough demonstrates how to build a React and Flask B2B application using PropelAuth for hosted authentication, user management, and organization support. It covers creating and branding a PropelAuth project, configuring optional features such as social login and organization invitations, and setting up a test user before integrating the React SDK with an AuthProvider, React Router, login, signup, logout, and protected user-information pages. The frontend retrieves access tokens automatically and sends them in Bearer authorization headers for protected backend requests, with a development proxy used to address cross-origin requests between React and Flask. On the Flask side, the propelauth-flask library initializes token validation and protects routes with decorators that identify authenticated users or verify organization membership without external validation requests for each JWT. The application is extended to list a user’s organizations, allow users without organizations to create one, and retrieve organization details only for valid members, illustrating how PropelAuth can replace custom authentication interfaces, invitation flows, and account-management infrastructure.

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