Uncaught TypeError: fs.createWriteStream is not a function

Question

I want to make a pdf file on client-side and afterwards it has to be send server-side through a REST call.

With the generation of the file, I have no problem. I use

Answer 1

You are confusing the server and the client. The browser has no programmatic access to the filesystem. Period. The filesystem api is triggered only via user interaction (like dragging and dropping a file on the webpage). You cannot write a file locally on the client.