This project shows how to implement AWS Cognito authentication with WhatsApp OTP using Node.js & C# in AWS Lambda. The solution includes a UI built in React/Next.js and uses the Serverless Framework to deploy the Lambda functions to AWS. It supports login and signup flows, including phone-only and email + WhatsApp authentication using AWS Cognito.

🆓 Get a Free WhatsApp Business API from Meta + Build AI Chatbot with n8n | احصل على WhatsApp API مجاني من Meta وابنِ بوت ذكاء اصطناعي | Groq + LLaMA 3.3 70B | Step-by-step 2026