Add mods and ruleset parameters to GetDifficultyAttributes

OsuSharp/Endpoints/Beatmaps.cs

@@ -155,10 +155,16 @@ public async Task<BeatmapExtended[]> GetBeatmapsAsync(params int[] ids)
   /// <a href="https://osu.ppy.sh/docs/index.html#get-beatmap"/>
   /// </summary>
   /// <param name="id">The ID of the beatmap.</param>
+  /// <param name="mods">The mods to get the attributes from.</param>
+  /// <param name="ruleset">The ruleset to get the attributes from.</param>
   /// <returns>The difficulty attributes or null, if the beatmap was not found.</returns>
-  public async Task<DifficultyAttributes?> GetDifficultyAttributesAsync(int id)
+  public async Task<DifficultyAttributes?> GetDifficultyAttributesAsync(int id, string? mods = null, string? ruleset = null)
   {
     // Send the request and return the difficulty attributes object.
-    return await GetFromJsonAsync<DifficultyAttributes>($"beatmaps/{id}/attributes", jsonSelector: x => x["attributes"], method: HttpMethod.Post);
+    return await GetFromJsonAsync<DifficultyAttributes>($"beatmaps/{id}/attributes",new Dictionary<string, object?>()
+    {
+      { "mods", mods },
+      { "ruleset", ruleset }
+    }, x => x["attributes"], method: HttpMethod.Post);
   }
 }

OsuSharp/OsuApiClient.cs

@@ -5,6 +5,7 @@
 using System.ComponentModel;
 using System.Net;
 using System.Net.Http.Headers;
+using System.Net.Http.Json;
 using System.Reflection;
 using System.Web;
 
@@ -116,8 +117,15 @@ public async Task EnsureAccessTokenAsync()
 
     try
     {
+      // Prepare HTTP request
+      var message = new HttpRequestMessage(method ?? HttpMethod.Get, method == HttpMethod.Get ? $"{url}?{BuildQueryString(parameters)}" : url);
+
+      // Append POST body if required
+      if (method == HttpMethod.Post)
+        message.Content = JsonContent.Create(parameters);
+
       // Send the request and validate the response. If 404 is returned, return null.
-      HttpResponseMessage response = await _http.SendAsync(new HttpRequestMessage(method ?? HttpMethod.Get, $"{url}?{BuildQueryString(parameters)}"));
+      HttpResponseMessage response = await _http.SendAsync(message);
       if (response.StatusCode == HttpStatusCode.NotFound)
         return default;