server.ts

#!/usr/bin/env bun
import { mkdtemp, readFile, rm, writeFile } from "node:fs/promises";

const port = 10000;
Bun.serve({
	port,
	async fetch(req) {
		switch (req.method) {
			case "POST": {
				const { project, entry = "main.typ" } = await req.json();
				if (!project)
					return new Response("Missing 'project' field", {
						status: 400,
					});
				const dir = await mkdtemp("/tmp/typ2docx-");
				await writeFile(`${dir}/project.zip`, Buffer.from(project, "base64"));
				await Bun.$`cd ${dir} && unzip -o project.zip && rm project.zip`.nothrow();
				const { stderr, exitCode } =
					await Bun.$`cd ${dir} && typ2docx ${entry} -o output.docx -e pdfservices`
						.env(process.env)
						.nothrow();

				if (exitCode) {
					await rm(dir, { recursive: true, force: true });
					return new Response(stderr, { status: 500 });
				}

				const output = await readFile(`${dir}/output.docx`);
				await rm(dir, { recursive: true, force: true });
				return new Response(output, {
					headers: {
						"Content-Type":
							"application/vnd.openxmlformats-officedocument.wordprocessingml.document",
						"Content-Disposition": "attachment; filename=output.docx",
					},
				});
			}
			case "GET":
				return new Response(Bun.file("index.html"));
			default:
				return new Response(null, { status: 405 });
		}
	},
});

console.log(`Server is running on http://localhost:${port}`);