File Upload With Loopback

Question

I created a simple file uploading application with loopbackjs. In the application\'s client side I used simple HTML and Javascript code, calling a loopback api with an AJAX

Answer 1

Please check this code:

module.exports = function (FileUpload) {
var multer = require('multer');

    FileUpload.remoteMethod(
        'upload', {
            http: {
                verb: 'post',
            },
            accepts:
            [{
                arg: 'req',
                type: 'object',
                http: {
                    source: 'req'
                }
            }, {
                arg: 'res',
                type: 'object',
                http: {
                    source: 'res'
                }
            }],
            returns: {
                arg: 'data',
                type: 'string',
                root: true
            }
        }
    );

    var uploadedFileName = '';

    var storage = multer.diskStorage({
        destination: function (req, file, cb) {
            // checking and creating uploads folder where files will be uploaded
            var dirPath = 'client/uploads/'
            if (!fs.existsSync(dirPath)) {
                var dir = fs.mkdirSync(dirPath);
            }
            cb(null, dirPath + '/');
        },
        filename: function (req, file, cb) {
            // file will be accessible in `file` variable
            console.log("----------Second Rakesh---");
            console.log(file);
            var ext = file.originalname.substring(file.originalname.lastIndexOf("."));
            var fileName = Date.now() + ext;
            uploadedFileName = fileName;
            cb(null, fileName);
        }
    });

    FileUpload.upload = function (req, res, callback) {

        var upload = multer({
            storage: storage
        }).array('file', 12);

        upload(req, res, function (err) {
            if (err) {
                // An error occurred when uploading
                res.json(err);
            }
            console.log("-------------Rakesh"); // Its Printing Rakesh

            res.json(uploadedFileName);
        });
    };
};