Test assignments
Lead Form Landing
Spanish lead-generation landing with a validated form sent through a server-side proxy.
- Role
- Front-End + serverless proxy
- Year
- 2026
- Type
- Test assignments
Overview
A news-style landing page for paid traffic. The lead form is validated on the client and again on the server, then forwarded to an affiliate tracker API through a proxy — implemented both in PHP and as a Vercel serverless function.
What I built
- Validation on blur with Spanish error messages
- Phone input mask and honeypot anti-bot field
- Success / error modals and optional redirect from the API
- Server maps tracker error codes to user-friendly messages
Engineering highlights
- Same proxy in PHP and Node serverless, including a hand-written multipart parser
- Handles timeouts and HTML-instead-of-JSON responses from the upstream API
