Change Category not working

[sybenx]

Change category leaves category blank no matter which category is selected

qBittorrent ver 4.5.0
running native on
Windows 10

[SpasovskiFilip]

Same here, after I updated qBittorrent to 4.5.0 it stopped, before it worked great.

UPDATE

After some digging, I found out that qBittorrent changed the way they set the categories from the webUI.
It no longer sends a GET request, but rather a POST request. Also the hash and category are not a part of the URL, they're now part of the body attribute of the request.
Here is an example of how the qBittorrent native WebUI fetch request looks like

fetch("http://192.168.1.111:8081/api/v2/torrents/setCategory?hashes=f05005827111faa0ef05fc453785b3c842816883&category=Category1", {
    "headers": {
        "accept": "application/json, text/plain, */*",
        "accept-language": "en-GB,en-US;q=0.9,en;q=0.8"
    },
    "referrer": "http://192.168.1.111:8081/",
    "referrerPolicy": "strict-origin-when-cross-origin",
    "body": null,
    "method": "GET",
    "mode": "cors",
    "credentials": "include"
});

And this is how iQbit's fetch request looks like

fetch("http://192.168.1.111:8081/api/v2/torrents/setCategory", {
    "headers": {
        "accept": "text/javascript, text/html, application/xml, text/xml, */*",
        "accept-language": "en-GB,en-US;q=0.9,en;q=0.8",
        "content-type": "application/x-www-form-urlencoded; charset=UTF-8",
        "x-requested-with": "XMLHttpRequest"
    },
    "referrer": "http://192.168.1.111:8081/",
    "referrerPolicy": "same-origin",
    "body": "hashes=f05005827111faa0ef05fc453785b3c842816883&category=Category1",
    "method": "POST",
    "mode": "cors",
    "credentials": "include"
});

[ntoporcov]

Fixed a whole bunch of the methods on the latest push, it should all be working now with 4.5.0
Please create a new issue if I missed any of the endpoints and I'll try to get it fixed same day :D