javascript - How to zip file before saving original on drive? -

in code p(file path) , can download it

function createcsv(){   return mytmp.gettempdir((tmppath) => {     return new promise(function (resolve, reject) {        let p  = path.resolve(tmppath, "snake_case_users33.csv");       var ws = fs.createwritestream(p);        csv         .write([           {a: "a1", b: "b1"},           {a: "a2", b: "b2"}         ], {headers: true})         .pipe(ws);        resolve(p);      });   }); } 

but need zip .csv file, either before formatting date, or @ first format .csv file, after zip , save on drive , path.

at beginning need create csv :

let p = path.resolve(tmppath, "snake_case_users.csv");          var output = fs.createwritestream(p);          csv.write([              {a: "a1", b: "b1"},              {a: "a2", b: "b2"}            ], {headers: true});    //below let zippath = path.resolve(tmppath, "snake_case_users.zip"); , zip

maybe after use zippath zip csv somehow?

i suggest use archiver module.

https://github.com/archiverjs/node-archiver

it easy use , can wrap folder zip.

here example code make zip folder

function archive (cb) {    var archive = require('archiver');   var timestamp = new date().gettime().tostring();   // self.logpath + '/archive' + timestamp + '.zip' path zip file.    //you can use path like.    var zippath = self.logpath + '/archive' + timestamp + '.zip'   var output = fs.createwritestream(zippath);   var archive = archiver('zip');    output.on('close', function() {     console.log(archive.pointer() + ' total bytes');     console.log('archiver has been finalized , output file descriptor has closed.');      return cb("all ok or path zip");   });    archive.on('error', function(err) {     return cb("error");   });    archive.pipe(output);   //read directory   var alllogs = fs.readdirsync('path dir or file');   //append files archive   async.eachseries(alllogs, function(filename, callback){       var file = path.join(self.logpath, filename);       archive.append(fs.createreadstream(file), { name: filename });       callback();   }, function(){       //finalize trigger on close event       archive.finalize();   }); } 

of course need change paths, else should fine.

hope helps