Hi everyone! 
Wanted to share a recent production setup where I combined custom interactive web frontends with an end-to-end n8n AI automation pipeline.
What Was Built:
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Interactive Frontend / Web App: Designed a high-converting, fast interactive web UI for client proposals and lead capture.
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Webhook Trigger & Validation: Seamless payload handling from the web app straight into n8n via webhook endpoints.
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AI Processing Layer: Utilized LLM routing to qualify incoming leads based on custom criteria (budget, niche, service fit).
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Automated CRM & Notification Handoff: Instant lead enrichment into Google Sheets/CRM alongside automated Slack/Telegram instant alerts.
Tech Stack Used:
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Backend Automation: n8n (Webhooks, HTTP Requests, OpenAI Nodes, Google Sheets Integration)
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Frontend / Vibe Coding Build: Interactive UI/UX with smooth state management
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Data Flow: Webhook $\rightarrow$ Data Normalization $\rightarrow$ AI Qualification $\rightarrow$ Instant Handoff
Key Takeaways:
Decoupling the frontend UI from the backend logic via n8n webhooks makes scaling and updating workflows super fast without touching the frontend code.
If anyone is working on similar full-stack AI web app integrations or needs help setting up clean webhook pipelines between web apps and n8n, happy to connect and brainstorm!