如何使用iOS应用将图像上传到Node.JS服务器

Question

everyone, I'm trying to upload a image from my ios device to a web server which is written in Node.JS.

I use formidable in the web server and it works well when I upload a file via browser, however, I can't figure out how to upload a file from an IOS app. It seems that the request sent by IOS app can't be parsed by formidable..

This post (I followed this post to write the POST request in IOS app) shows the ios app client code I wonder what does the server side look like..

Answer 1

I don't think you have provided enough information to receive an adequate answer. However, if you can post fine using a browser but not with iOS, to me that seems like either a header issue in the POST request, or iOS is not issuing a POST request. You will have to debug those points to see where the problem may be.

Are you getting any. errors in node when posting from iOS? That will reveal a lot of information.

Answer 2

Well, I figured out how to do this...in short, I wasn't building the request body in proper format.. I messed up with 'boundary'. My server side code actually works well after I changed my IOS app code, this post is giving the correct way to write IOS client code. I will post my server code here in case someone may need it.

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

    var form = new formidable.IncomingForm();
    //console.log(form);
    //console.log(req._readableState);
    //console.log(req.body);    
    form.parse(req, function(err, fields, files) {
        res.end('success'); 
    });
    form.on('end', function(fields, files) {
         var temp_path = this.openedFiles[0].path;
         //console.log(temp_path);      
         var file_name = this.openedFiles[0].name;       
         var new_location = path.dirname(require.main.filename) + "/uploads/fullsize/";
         fs.copy(temp_path, new_location + file_name, function(err) {  
            if (err) {
                 console.error(err);
            } else {
                   console.log("success!")
            }
        });
    });
});