---
title: "Build a backend from your frontend code · Lenexa Learn"
description: "After building a React app in Lovable, one developer told Claude Code to read the frontend and build a Node backend to match."
url: https://www.lenexa.ai/learn/agents/build-a-backend-from-your-frontend-code/
site: "Lenexa Learn"
---

Claude Code

# Build a backend from your frontend code

After building a React app in Lovable, one developer told Claude Code to read the frontend and build a Node backend to match.

## Steps

1. Build or export your frontend.
2. Ask the agent to read it and list what the backend needs.
3. Let it build and test the backend.

## Prompt you can copy

```
Read this frontend code, list the API it needs, and build a Node backend for it.
```

## What you get

A working backend the next day.

## Source

[hn](https://news.ycombinator.com/item?id=45058432) · August 2025

For Developers. [Claude Code](https://www.lenexa.ai/learn/agents/tool/claude-code/). Added October 12, 2026. Shared by @archeantus.

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