Get current Vercel deploy commit sha on your website

api-commit.js

export default async (_req, res) => {
  res.json({ data: process.env.VERCEL_GITHUB_COMMIT_SHA });
};

index.js

const commitSp = document.getElementById("commit");

const getCommit = () => {
  const url = `/api/commit`;
  const website = `https://github.com/filiptronicek/trnck.dev`;
  fetch(url)
    .then((responce) => responce.json())
    .then((res) => {
      commitSp.innerHTML = `<a href="${website}/commit/${
        res.data
      }" target="_blank" rel="noreferrer">${res.data.substring(0, 7)}</a>`;
    });
};