closingset

Every process deserves a proper closing set — not a kill -9 mid-drop.

Tiny, dependency-free graceful-shutdown manager: register cleanup handlers, and on SIGINT/SIGTERM they run once, LIFO (last opened, first closed), under a hard timeout so a stuck handler can't keep the process alive forever.

import closingset from "closingset";

const set = closingset({ timeout: 10_000, log: console.error });

const server = app.listen(8317);
set.add("http", () => new Promise((r) => server.close(r)));

const db = await connect();
set.add("db", () => db.end());        // closes BEFORE http (LIFO)

// manual shutdown also works:
await set.close(0);

Handlers that throw are logged and the exit code becomes 1; the set always plays to the end.

MIT © wobondar