How to pass $scope variable data into node.js backend server file?

Question

I have json data in $scope variable and i want to use that $scope variable inside my backend app.js node file.

This is my backend file app.js:

app.post('/upload', upload.single('file'), function(req, res) {

    var XLSX = require('xlsx');
    var workbook = XLSX.readFile('./uploads/' + req.file.filename);
    var sheet_name_list = workbook.SheetNames;
    var data = XLSX.utils.sheet_to_json(workbook.Sheets[sheet_name_list[0]]);
    //var values = [];
    console.log(data);
    return res.status(200).send(data);
});

app.post('/api/uploadlast',api.addNewContact, function(req,res){

    Contact.bulkCreate(excels).then(function(users) {
        return res.status(200).send(users);
    }).catch(Sequelize.ValidationError, function(err) {
        return res.status(422).send(err.errors[0].message);
    }).catch(function(err) {
        return res.status(400).send(err.message);
    });
})

This is my controller file:

   $scope.uploadFile = function() {
            var file = $scope.myFile;
            var uploadUrl = "/upload";
            var fd = new FormData();
            fd.append('file', file);

            $http.post(uploadUrl, fd, {
                    transformRequest: angular.identity,
                    headers: {
                        'Content-Type': undefined
                    }
                })
                .then(function(response) {
                    //$state.reload();
                    $scope.excels = response.data;
                    console.log("success!!");
                })
                .catch(function() {
                    console.log("error!!");
                });

        }

        $scope.uploadLast = function() {
            $http.post('/api/uploadlast').then(function(response) {
                $state.reload();
           });
        }
     })

I want to get $scope.excels data into my backend to bulkcreate into databases.

Describe the problem. Tell us what the expected behavior should be. Tell us what the exact wording of the error message is, and which line of code is producing it. Put a brief summary of the problem in the title of your question. — georgeawg
– georgeawg, Commented Aug 29, 2017 at 7:24
i have data in $scope.excels so i want to post that data my backend — Sameer
– Sameer, Commented Aug 29, 2017 at 7:26
You pass the data to your backend in the upload request. Do the similar thing for the uploadlast. You can refer the docs here: docs.angularjs.org/api/ng/service/$http#post. — Prerak Sola
– Prerak Sola, Commented Aug 29, 2017 at 7:30

Sameer · Accepted Answer · 2017-08-30 13:35:53Z

1

You can pass any data with a post request as the second parameter of $http.post(). So you can do something like:

$scope.uploadLast = function() {
    var data = {
        excels: $scope.excels
    };

    $http.post('/api/uploadlast', data).then(function(response) {
        $state.reload();
    });
}

And in your backend, you can access it like:

app.post('/api/uploadlast',api.addNewContact, function(req, res){

    var data = req.body.excels;


    Contact.bulkCreate(data).then(function(users) {
        return res.status(200).send(users);
    }).catch(Sequelize.ValidationError, function(err) {
        return res.status(422).send(err.errors[0].message);
    }).catch(function(err) {
        return res.status(400).send(err.message);
    });
});

edited Aug 30, 2017 at 13:35

Sameer

3,6385 gold badges27 silver badges55 bronze badges

answered Aug 29, 2017 at 7:38

Prerak Sola

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