nativescript-download-progress 
Introduction
This plugin allows you to download large files and provides progress updates.
Nativescripts http.getFile method stores the data in memory which can cause out of memory exceptions and doesn't provide progress updates.
Installation
tns plugin add nativescript-download-progressExamples
import { DownloadProgress } from "nativescript-download-progress"
const dp = new DownloadProgress();
dp.on('started', ({ contentLength }) => console.log('started', contentLength));
dp.on('progress', ({ progress, url, destinationPath }) => console.log(progress, url, destinationPath));
dp.on('finished', ({ file }) => console.log('finished', file.path));
dp.download({ url: 'http://ipv4.download.thinkbroadband.com/20MB.zip' }).then(file => {
console.log('Success', file);
}).catch(error => {
console.log('Error', error);
});Passing request headers
import { DownloadProgress } from "nativescript-download-progress"
const dp = new DownloadProgress();
dp.on('started', ({ contentLength }) => console.log('started', contentLength));
dp.on('progress', ({ progress, url, destinationPath }) => console.log(progress, url, destinationPath));
dp.on('finished', ({ file }) => console.log('finished', file.path));
const opts = {
url: 'http://ipv4.download.thinkbroadband.com/20MB.zip',
destinationPath: 'some/path/to/file.zip',
request: {
method: 'GET',
headers: {
Authorization: 'Bearer token',
}
}
};
dp.download(opts).then(file => {
console.log('Success', file);
}).catch(error => {
console.log('Error', error);
});Async / Await
import { DownloadProgress } from "nativescript-download-progress"
const dp = new DownloadProgress();
dp.on('started', ({ contentLength }) => console.log('started', contentLength));
dp.on('progress', ({ progress, url, destinationPath }) => console.log(progress, url, destinationPath));
dp.on('finished', ({ file }) => console.log('finished', file.path));
try {
const f = await dp.download({ url: 'http://ipv4.download.thinkbroadband.com/20MB.zip' });
console.log(f.path);
} catch (error) {
console.log('Error', error);
}License
Apache License Version 2.0, January 2004