I've been trying to make a mod where you could "steal" parts of the player, and get them as items, but I've run into a problem: I don't have a single clue on how to get player's skin texture, nor how to apply it to the item model. I tried to seek examples on this forum and even look up how SkullBlockRenderer class works, but I didn't find an exact answer to my question anywhere

Edited April 21, 20241 yr by AppleBeanie

Just a few months ago I was creating my own plugin for Minecraft 1.20.2 spigot that did the same thing, but the skins were not saved, if you can understand this code that I made a long time ago it may help you.

 

//This is a class method
	private static String APIRequest(String value, String url, String toSearch) {
        try {
            URL api = new URL(url + value);
            HttpURLConnection connection = (HttpURLConnection) api.openConnection();

            connection.setRequestMethod("GET");

            int responseCode = connection.getResponseCode();

            if (responseCode == HttpURLConnection.HTTP_OK) {
                BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));

                StringBuilder response = new StringBuilder();

                for (String responseChar; (responseChar = reader.readLine()) != null; ) response.append(responseChar);

                reader.close();

                JSONObject responseObject = new JSONObject(response.toString());

                if (!toSearch.equals("id"))
                    return responseObject
                            .getJSONArray("properties")
                            .getJSONObject(0)
                            .getString("value");
                else return responseObject.getString("id");
            }
            else {
                AntiGianka.ConsoleMessage(ChatColor.RED, String.format(
                        "Could not get %s. Response code: %s",
                        ((toSearch.equals("id")) ? "UUID" : "texture"),
                        responseCode
                ));
            }
        } catch (MalformedURLException error) {
            AntiGianka.ConsoleMessage(ChatColor.RED, "An error occurred while trying to access the URL. Error: " + error);
        } catch (IOException error) {
            AntiGianka.ConsoleMessage(ChatColor.RED, "An error occurred while attempting to connect to the URL. Error: " + error);
        }
        return "";
    }

//other class method
    private void SkinGetter() {
        String uuid;
        String textureCoded;

        if ((uuid = APIRequest(args[0], "https://api.mojang.com/users/profiles/minecraft/", "id")).isEmpty() ||
                (textureCoded = APIRequest(uuid, "https://sessionserver.mojang.com/session/minecraft/profile/", "value")).isEmpty()
        ) sender.sendMessage(ChatColor.RED +
                String.format(
                        "An error has occurred while trying to obtain the %s player skin, please check if the name %s is spelled correctly or try again later.",
                        args[0], args[0]
                )
        );
        else SkinSetter(textureCoded);
    }

//other more
    private void SkinSetter(String textureCoded) {
        JSONObject profile = new JSONObject(new String(Base64.getDecoder().decode(textureCoded)));

        try {
            URL textureUrl = new URL(profile.getJSONObject("textures").
                    getJSONObject("SKIN").
                    getString("url"));

            if (sender instanceof Player && args.length == 1) {
                PlayerTextures playerTextures = ((Player) sender).getPlayerProfile().getTextures();
                playerTextures.setSkin(textureUrl);

                ((Player) sender).getPlayerProfile().setTextures(playerTextures);

                if (((Player) sender).getPlayerProfile().getTextures().getSkin() != null) sender.sendMessage(((Player) sender).getPlayerProfile().getTextures().getSkin().toString());
                else sender.sendMessage("Null");

                sender.sendMessage("Skin changed successfully.a");
            }
            else {

            }
            AntiGianka.ConsoleMessage(ChatColor.GREEN, "Skin command executed successfully.");
        } catch (MalformedURLException error) {
            sender.sendMessage(ChatColor.RED +
                    String.format(
                            "An error has occurred while trying to obtain the %s player skin, please check if the name %s is spelled correctly or try again later.",
                            args[0], args[0]
                    )
            );
            AntiGianka.ConsoleMessage(ChatColor.RED, "An error occurred while trying to access the URL. Error: " + error);
        }
    }