NOS-Uploads

An upload module for IBI Data's Node Starter

• The upload module uses Multer.

S3 Storage

Single File

const upload = require('nos-upload')(config).s3;

router.route('/uploads')
    .post(upload.single('file'), (req, res, next) => {
        console.log(req.file); // file information
        console.log(req.file.path); // full s3 location of file
    });

Multiple Files

const upload = require('nos-upload')(config).s3;

router.route('/uploads')
    .post(upload.array('file'), (req, res, next) => {
        console.log(req.files); // file information
    });

Multiple Files with different file identifiers

const upload = require('nos-upload')(config).s3;

router.route('/uploads')
    .post(upload.fields([
        {
            name: 'file1',
            maxCount: 1,
        },
        {
            name: 'file2',
            maxCount: 5,
        },
    ]), (req, res, next) => {
        console.log(req.files.file1); // array of files
        console.log(req.files.file1); // array of files
    });

Disk Storage

Single File

const upload = require('nos-upload')(config).disk;

router.route('/uploads')
    .post(upload.single('file'), (req, res, next) => {
        console.log(req.file); // file information
        console.log(req.file.path); // temp folder path to uploaded file
    });

Multiple Files

const upload = require('nos-upload')(config).disk;

app.route('/uploads')
    .post(upload.array('file'), (req, res, next) => {
        console.log(req.files); // file information
    });

Multiple Files with different file identifiers

const upload = require('nos-upload')(config).disk;

app.route('/uploads')
    .post(upload.fields([
        {
            name: 'file1',
            maxCount: 1,
        },
        {
            name: 'file2',
            maxCount: 5,
        },
    ]), (req, res, next) => {
        console.log(req.files.file1); // array of files
        console.log(req.files.file1); // array of files
    });

Memory Storage

Single File

const upload = require('nos-upload')(config).memory;

app.route('/uploads')
    .post(upload.single('file'), (req, res, next) => {
        console.log(req.file); // file information
        console.log(req.file.buffer); // buffered file
    });

Multiple Files

const upload = require('nos-upload')(config).memory;

app.route('/uploads')
    .post(upload.array('file'), (req, res, next) => {
        console.log(req.files); // file information
    });

Multiple Files with different file identifiers

const upload = require('nos-upload')(config).memory;

app.route('/uploads')
    .post(upload.fields([
        {
            name: 'file1',
            maxCount: 1,
        },
        {
            name: 'file2',
            maxCount: 5,
        },
    ]), (req, res, next) => {
        console.log(req.files.file1); // array of files
        console.log(req.files.file1); // array of files
    });

Setting Options

File limit settings and the destination can be set in config.js.

In the upload.js file, you can set the following options:

• fileFilter: function which will control which files to accept. See the multer documentation for an example.
• filename: function which renames the uploaded files. See the multer documentation

Override options

If you need to override the options for a single upload, you can explicitly set them before your route.

const upload = require('nos-upload')(config).disk;

upload.limits.fileSize = 1000000; // in bytes
upload.limits.files = 1;
upload.fileFilter = (req, file, cb) => {
    if (somecondition) {
        cb(null, false); // reject
    }
    else {
        cb(null, true); // accept
    }
}

Just Using Multer

const multer = require('multer');

//CONFIGURE MULTER FILE UPLOAD LOCATION
let storage = multer.diskStorage({
    destination: function (req, file, cb) {
        cb(null, 'tmp/') //Your upload destination here
    },
    filename: function (req, file, cb) {
        cb(null, file.fieldname + '-' + Date.now())
    }
})
let upload = multer({ storage: storage});

// POST for one upload only
app.route('/api/files')
    .post(upload.single('file'), function (req, res) {
        console.log(req.file);
    })

// POST for multiple uploads
app.route('/api/files')
    .post(upload.array('file'), function (req, res) {
        console.log(req.files);
    });