Simultaneously run an async function on any iterable with limited concurrency.
Simultan takes an iterable, executes an async method on each value, and returns a single Promise. The promise contains an array of all the resolved return values. The number of concurrent invocations can be limited.
$ npm install --save simultan
import { simultan } from 'simultan';
const urls = [
// ... array of urls to fetch
]
await simultan(urls, async url => {
const response = fetch(url);
return response.json();
});
//=> [{...}, {...}, {...}, ]Returns: Promise<unknown[]>
Simultan executes an async callback on each value of any Iterable. A single Promise is returned with an array of the resolved return values.
This returned promise will resolve when all invocations of the callback method have been resolved.
Type: Iterable<T> | AsyncIterable<T>
Required: true
Iterable to iterate and execute async callback function on.
Type: IteratorFn<T, R> = (item: T) => Promise<R>
Required: true
Type: number
Default: 200
Required: false
Maximum number of concurrent invocations.
MIT © Terkel Gjervig