Promise.all in React: All-or-Nothing Fetching

Parallel API requests with Promise.all are fast and clean:

const [userRes, orgRes, projectRes] = await Promise.all([
  axios.get(`/api/users`),
  axios.get(`/api/organizations`),
  axios.get(`/api/projects`),
]);

Why use Promise.all

• Runs requests in parallel
• Total wait time matches the slowest request
• Clear all-or-nothing control flow

Tradeoff

If one request fails, all results are rejected.

If you want partial success handling, use Promise.allSettled.