Multipart/form-data webix

Webix JS
1

I have webix upload form in my app. But when I try to upload with api in console I have error 400 bad request (Invalid json message received). I need to have in my request header “multipart/form-data” when i try to upload but I always have application/json in my request header. In my application i have code like this in the beginning :
webix.attachEvent(“onBeforeAjax”, function(mode, url, data, request, headers){
headers[“Authorization”]= CookieService.get(‘token’);
headers[“Content-type”]= “application/json”;
});

As I can see i cannot override content-type. Do you have any idea how can I change content type only when I try to upload documents (somehow to attach event to the upload button) to change content type only when this upload occurs.

Thank you in advance.

2

you can place some kind of logic in onBeforeAjax handler

webix.attachEvent("onBeforeAjax", function(mode, url, data, request, headers, formData){ 
 if (!formData){
      headers["Authorization"]= CookieService.get('token'); 
      headers["Content-type"]= "application/json"; 
 }
});

The last parameter is not included in the documentation ( will be fixed ) it is the formData structure that does exist only during file uploading calls.

3

Thanks Maksim as always. It’s working great.