dropbox.filesUpload sometimes does not work

fangzefunny

Hi,

 

I am now doing an online experiment via URL and trying to collect data using dropbox javascript SDK.

At the end of the experiment, the success message was always prompted. But the data was not always uploaded to my dropbox. 

About 1/5 data was missing on the way to my dropbox.

 

I have no idea why the data is missing and need help with possible reasons.

Here is my code.  Each file is about 30kb, so the file size shouldn't be a problem.

 

I don't know if this is the right way to place the question. Is any extra information needed? 

 

 

 

 

require("dotenv").config();
var Dropbox = require("dropbox").Dropbox;
const fetch = require("node-fetch");

const dbx = new Dropbox({
    accessToken: #############,
    refreshToken: #############,
    clientId: #############, 
    clientSecret: #############,
    fetch
});

var saveDropbox = function(content, filename){
    dbx.filesUpload({
        path: "/" + filename,
        contents: content 
    })
};
app.post("/experiment-data/:filename", function(request, response){
    // convert json to csv 
    DATA_CSV = json2csv(request.body); 
    var filename = request.params.filename;
    savedropbox(DATA_CSV, filename);
    response.end();
});

function(){
   var sel_data = jsPsych.data.get();
   $.ajax({
     type: "POST",
     url:  "/experiment-data/" + filename,
     data: JSON.stringify(sel_data.values()),
     contentType: "application/json"
     }).done(function(){
          alert("You have compeleted the experiment and your data has been 
          saved! ");
    }).fail(function(){
           alert("A problem occurs while writing data to Dropbox. "
          + "Data will be saved to your computer. ";
          var csv = sel_data.csv();
          downloadCSV(csv, fname);  
    });

 

 

 

  

Здравко

---

@fangzefunny wrote:

...

At the end of the experiment, the success message was always prompted. But the data was not always uploaded to my dropbox. 

...

...
var saveDropbox = function(content, filename){
    dbx.filesUpload({
        path: "/" + filename,
        contents: content 
    })
};
...

...

Hi @fangzefunny,

In your 'saveDropbox' function, what are you doing with Dropbox 'filesUpload' method result? On success there should be received a file metadata to the file just uploaded and on error - the corresponding error information. As far as I can see, you are ignoring this information. In this context, you function always succeeds regardless if actual upload succeeds or fails. The information of the error pointing the reason of an upload fail is lost too. That's why you never get any error message and your 'success message' always appears. 😉 Be more careful.

Hope this gives direction.