JATOS with jspsych saving data local run but not server run

Comments

• elisa

  February 28 edited February 28

  Hi,

  The first thing that comes to mind is that the data you're trying to send to the server are too large. How big is one dataset?
• MsPop

  March 1

  No they are tiny text files. When I run my test experiment it is only 35 lines of data, 13kb.
• elisa

  March 1

  That’s weird.

  Then we would need more information, in order to know what might be the problem. Let’s see:

  1. Did this happen with any study or just with yours? Can you download one from the example studies page and try if that fails, too?
  2. How are you sending data to the server? Ie with which function?
  3. Can you do a study run and send us the logs? You should have access to them if you’re an admin user.
• MsPop

  March 3

  Thanks for this. The example study works fine! The issue seems to be that I was using the command:

     on_finish: function(data) {

  var results = jsPsych.data.get().ignore(['internal_node_id','button_pressed']).csv();

                  jatos.submitResultData(results); }

  Which works fine on my local version of JATOS (and the server at a previous Uni) but was not posting data to our new server.

  So I need to be using the command:

   on_finish: () => jatos.endStudy(jsPsych.data.get().csv()).

  I need to play around a little with where exactly I use this command to send the data (because at the end of my script it redirects back to Prolific/SONA so the previous submitResultData command was at the end of the last trial), but that seems to be the issue so thanks!
• MsPop

  March 12

  I am still having trouble with this. The following works great indicating that I can submit data to our server:

    var jsPsych = initJsPsych({

                     on_finish: function() {

                     var results = jsPsych.data.get().ignore(['internal_node_id','button_pressed']).csv();

                     jatos.endStudy(results)

                 }

    });

  However I need to redirect at the end of the study and when I start trying to submit data to the server before the redirect using any other command (e.g., jatos.uploadResultFile or jatos.submitResultData) then the data does not save. Any thoughts?
• elisa

  March 12

  My first guess is that your data take a bit longer to send to your server, and if you put another command after it, you end up redirecting before the data get the chance to get sent.

  Try using jatos.endStudyAndRedirect instead, that relies on a Promise.
• MsPop

  March 12

  You're right, that works. I actually hadn't clicked that you could add results data to that command and it would also submit the data. So jatos.endStudyAndRedirect(completion_url, results) works perfectly. Yay!