DEV Community

Batch API Calls in Javascript

Hi Everyone, This was one of the javascript question that was asked during an interview - Batch api call const urls = [ 'https://jsonplaceholder.typicode.com/posts/1', 'https://jsonplaceholder.typicode.com/posts/2', 'https://jsonplaceholder.typicode.com/posts/3', 'https://jsonplaceholder.typicode.com/posts/4', 'https://jsonplaceholder.typicode.com/posts/5', 'https://jsonplaceholder.typicode.com/posts/6', 'https://jsonplaceholder.typicode.com/posts/7', 'https://jsonplaceholder.typicode.com/posts/8', 'https://jsonplaceholder.typicode.com/posts/9', 'https://jsonplaceholder.typicode.com/posts/10' ]; async function limitAPICalls(urls, limit = 3) { for (let i = 0; i < urls.length; i += limit) { const batch = urls.slice(i, i + limit); const responses = await Promise.all( batch.map(url => fetch(url).then(res => res.json())) ); responses.forEach((res, index) => { console.log(`Response ${i + index + 1}:`, res); }); } } const limitApis = limitAPICalls(urls)
favicon
dev.to
dev.to