tailwindcss-service.js

const postcss = require("postcss");
const tailwind = require("tailwindcss");
const express = require("express");
const app = express();

app.get("/:configBase64/tailwind.css", async (req, res) => {
  const buffer = Buffer.from(req.params.configBase64, "base64");
  const config = JSON.parse(buffer.toString("utf-8"));
  const baseCSS = `@tailwind base;@tailwind components;@tailwind utilities;`;

  const { css } = await postcss([tailwind(config)]).process(baseCSS, {
    from: undefined,
  });

  res.set("Content-Type", "text/css");
  res.end(css);
});

app.listen(3000, () => console.log("Serving tailwindcss on port 3000!"));