Handling form data in nodejs

Question

I am uploading a csv file from my client side javascript as Post request to my node server. I am able to handle the request on the nodejs server as well. Please help me in fetching the file and parsing the file on the server side. The file will be a csv file and I need to parse the file and read the contents of the file.

I am attaching the source code snippet for uploading the file on the client side as well as the server side below for reference.

myAngularApp.service('fileUpload', ['$http', function ($http) {
  this.uploadFileToUrl = function(file, uploadUrl){
    var fd = new FormData();
    fd.append('file', file);
    $http.post(uploadUrl, fd, {
        transformRequest: angular.identity,
        headers: {'Content-Type': undefined}
    })
        .success(function(){
           // handling on success data
        })
        .error(function(){
           // handling on error data
        });
  }

On NodeJs server:

router.post('/filter-reports', function(req, res) {
  console.log('Came inside the Node js router.. Now.. its all up to me to format the data....');
  console.log(req);
});

Answer 1

I think you are not using multer for handling the multipart/formdata requests.

Mention

var multer  =   require('multer');
var storage =   multer.diskStorage({
  destination: function (req, file, callback) {
    callback(null, './public');
  },
  filename: function (req, file, callback) {
    callback(null, file.fieldname + '-' + Date.now());
  }
});

in the above code.

/public is the directory in which your file will be saved; you can change it and filename will be changed to original filename with timestamp. They are optional fields here.

Then, in req.file or req.files you will get your file info or to access the file req.files.path will be used, or give a try to busboy if don't want to save file and want to do operation in buffer.