Node-downloader-helper is a library for downloading files. Using this library, you can download files using third-party libraries. To fetch files over HTTPS, you can use the GET method. This library supports writable stream support. To create a writable stream, you can use createWriteStream() method. This will send the file location to createWriteStream(). You can then use pipe() function, which will read data from the readable stream to write it to the writable stream. The file and filePath variables contain URL and path of the image you want to download.