Web User Acquisition Funnel

Summary: A web registration funnel with a payment checkout process 28 Survey Steps in total (Single Choice, Multiple-choice, Custom content) A E-Mail registration step (without password and connected with Firebase Auth) A payment checkout system to buy a subscription via Stripe or Paypal Technical Requirements: Use React.js for frontend Make it possible to easily extend / change survey steps Must support localization Use Express (or other) for backend via Cloud Functions Deploy a single Cloud Function which serves as web and API layer Store data in Firebase Firestore Store the survey answers and current step in a firestore collection Firebase Auth Every session get a Firebase Auth session assigned, either as anonymous or if available the current logged in user Anonymous users gets upgraded during registration to an account with a linked email The user doesn’t have to insert a password, the user gets a E-Mail login link PayPal and Stripe checkout process in frontend Sending Analytics Events to Facebook Pixel and Amplitude Responsive for Mobile and Desktop clients Example how it should like at the end: [login to view URL]