Poorly written docs.

I've been fighting with the Epson T88VI printer webconfig api for five hours now.

The official TM-T88VI WebConfig API User's Manual tells me how to configure their printer via the API... but it does so without complete examples. Most of it is there, but the actual format of the API call is missing.

It's basically: call `API_URL` with GET to get the printer's config data (works). Call it with PUT to set the data! ... except no matter what I try, I get either a 401:Unauthorized (despite correct credentials), 403:Forbidden (again...), or an "Invalid Parameter" response.

I have no idea how to do this.

I've tried literally every combination of params, nesting, json formatting, etc. I can think of. Nothing bloody works!

All it would have taken to save me so many hours of trouble is a single complete example. Ten minutes' effort on their part. tops.

asjdf;ahgwjklfjasdg;kh.