将formdata上传到node.js

Question

I want to save images base64 to db (mongodb) but don't know how to get the request in node.js.

This is my cilent side code

$('.imageUp').change(function(){

       upload(new FormData(this))
})

function upload(formData){
$.ajax({
        url: '/upload_img',
        type: 'POST',
        data: formData,
        processData: false
    })
}

Then what should I do in node?

router.post('/upload_img', function(req, res, next) {
// what to do here? how to get the post file? I'm going to save it to mongodb
});

Answer 1

Use .append() at FormData object at client side to pass FormData containing user selected File object to upload

$(".imageUp").change(function() {
  var data = new FormData();
  // requires two parameters to be passed
  data.append("file", this.files[0]);
  upload(data)
})