This is a standard server integration. All logic occurs in handler.php: receiving the request, sending to an external API, redirecting or fallback.
Input data is standard JSON (6–7 fields).
The external API returns a redirect link or an error.
I will explain the entire structure and provide an example — the main thing is that the handler is stable and well-written.
📎 P.S. I already have a preliminary layout (page.html) — it just needs to be connected.
📎 P.P.S. It is necessary to implement a system of three HTML/PHP pages that:
1. Accepts a POST request with user data;
2. Sends this data via API to an external server;
3. Receives a link (autologin_link) in response and redirects the user;
4. If the link is absent — shows a fallback page;
5. Keeps a log of all responses from the API.
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📁 What needs to be done:
• page.html — a simple page with a button (link) that leads to an external form;
• handler.php — a handler for the POST request that:
• accepts JSON;
• makes an API request;
• redirects the user;
• keeps a log;
• fallback.html — a page “Thank you, we will contact you.”
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💡 Additionally:
• Data: first name, last name, email, phone, geo, identifier;
• Input format — JSON via POST;
• IP detection support is needed;
• API key and endpoint will be provided;
• HTTPS, logging, code validity.
