Build Read-Next Rails with Medium Related and Recommended Articles

One article view is a bounce waiting to happen. Related and recommended endpoints let you show a second and third story without sending traffic back to medium.com.

Tool outcome: <ReadNext articleId="…" /> with 24h cache and editorial overrides.

Placement ideas

End-of-article rail on embedded Medium posts
Sidebar on documentation blogs
“More from this author” after portfolio posts (widget guide)

Fetch recommendations

const API = 'https://api.zenndra.com';
const headers = { Authorization: `Bearer ${process.env.ZENNDRA_API_KEY}` };

async function getReadNext(articleId) {
  const cacheKey = `readnext:${articleId}`;
  const hit = await cache.get(cacheKey);
  if (hit) return JSON.parse(hit);

  const [related, recommended] = await Promise.all([
    fetch(`${API}/article/${articleId}/related`, { headers }).then((r) => r.json()),
    fetch(`${API}/article/${articleId}/recommended`, { headers }).then((r) => r.json()),
  ]);

  const merged = dedupeById([
    ...(related.articles ?? []),
    ...(recommended.articles ?? []),
  ]).slice(0, 6);

  await cache.set(cacheKey, JSON.stringify(merged), { ex: 86400 });
  return merged;
}

function dedupeById(items) {
  const seen = new Set();
  return items.filter((a) => (seen.has(a.id) ? false : (seen.add(a.id), true)));
}

Mix your own rules

API suggestions + product logic wins:

function rankReadNext(candidates, { sameTag, excludeIds }) {
  return candidates
    .filter((a) => !excludeIds.has(a.id))
    .sort((a, b) => (sameTag(a) === sameTag(b) ? 0 : sameTag(a) ? -1 : 1));
}