Updating file content with uploader

Webix JS
#1

Is it possible to update file content before uploading it?

onafterfileadd event I want to read contents of my file and update its content, then i want to upload the the same file with updated content.

Thanks,

#2

Hi,

You can access the content of the file before uploading with the help of onBeforeFileAdd event

$$("uploader").attachEvent("onBeforeFileAdd", function(record){
   record.file = some_processing(record.file);
});

record.file is a blob of data, content of the file. You can change it in a necessary way.