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我想知道如何執行異步函數,我的目標是上傳文件並壓縮它們......但它不起作用,因爲我的文件尚未上傳時,我寫的.zip ...異步並行在NodeJS
,所以我得到一個空的.zip文件...
var asyncTasks = [];
selectedPhotos.forEach(function(id){
asyncTasks.push(function(callback){
var newFileName = pathDir + '/' + id + '.jpg';
api.media(id, function(err, media, remaining, limit) {
gm()
.in('-page', '+0+0')
.in('./public/images/instabox.jpg')
.in('-page', '+10+10')
.in(media.images.thumbnail.url)
.mosaic()
.minify()
.write(newFileName, function (err) {
if (!err) console.log('done');
if (err) console.log(err);
});
});
callback();
});
});
async.parallel(asyncTasks, function(){
var admZip = new AdmZip();
var pathDir = './public/uploads/'+reference;
admZip.addLocalFolder(pathDir);
var willSendthis = admZip.toBuffer();
admZip.writeZip('./public/uploads/'+reference+'.zip');
});
是的工作,非常感謝你:) – tonymx227 2014-10-01 12:37:25