Check if something is a Node.js stream
npm install is-stream
import fs from 'node:fs';
import {isStream} from 'is-stream';
isStream(fs.createReadStream('unicorn.png'));
//=> true
isStream({});
//=> false
Returns a boolean for whether it's a Stream.
Returns a boolean for whether it's a stream.Writable, an http.OutgoingMessage, an http.ServerResponse or an http.ClientRequest.
Returns a boolean for whether it's a stream.Readable or an http.IncomingMessage.
Returns a boolean for whether it's a stream.Duplex.
Returns a boolean for whether it's a stream.Transform.
Type: boolean
Default: true
When this option is true, the method returns false if the stream has already been closed.