Tutorial: system.downloadAsset

Downloads the given application asset.

Example

const appAsset = {
    src: `${ location.origin }/assets.zip`,
    alias: 'dirApp',
    version: '1.23.24',
    target: 'assets/run.bat'
};

function launchAsset(appAssetInfo) {
    fin.desktop.System.launchExternalProcess({
        alias: appAssetInfo.alias,
        listener: function(e) {
            console.log(`the exit code ${e.exitCode}`);
        }
    },() => {
        console.log('asset launched');
    },(reason, err)=> {
        console.log(reason, err);
    });
}

fin.desktop.System.getAppAssetInfo(appAsset, appAssetInfo => {
    console.log(`we already have the asset installed, let's just launch it.`);
    launchAsset(appAssetInfo);
}, (r, err) => {

    //Let's assume the asset is not available
    console.log(`asset not found, let's download.`);
    fin.desktop.System.downloadAsset(appAsset, progress => {

        //Print progress as we download the asset.
        const downloadedPercent = Math.floor((progress.downloadedBytes / progress.totalBytes) * 100);
        console.log(`Downloaded ${downloadedPercent}%`);
    }, () => {

        //asset download complete, launch
        launchAsset(appAsset);
    }, (reason, error) => {

        //Failed the download.
        console.log(reason, error);
    });

});