Ed Zynda

Running AJAX Requests Sequentially

Somewhat recently, I was refactoring a project that was having issues uploading and importing large CSV files. I was running into all kinds of issues from timeout errors to memory allocation exceptions. The solution was to break up the import and upload it in chunks. This alone was pretty easy but I also wanted to include the ability to display the progress of the entire import. The problem was, I was using AJAX to upload the data.…