Security Best Practices

1. Server-side Validation

   • Always validate redirect_uri server-side against a whitelist

   • Verify the state parameter matches the original request

2. Authorization Flow

   • Use authorization code flow (response_type=code)

   • Avoid implicit flow (response_type=token)

   • Implement PKCE when possible

3. Token Management

   • Store tokens securely

   • Refresh tokens before expiration

   • Validate scope parameters for each application

4. Request Security

   • Use HTTPS for all API calls

   • Include proper headers and origins

   • Handle errors and token expiration gracefully