5.1

src/NadekoBot/_common/JsonConverters/NumberToStringConverter.cs

@@ -0,0 +1,30 @@
+using System.Globalization;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+public class NumberToStringConverter : JsonConverter<object>
+{
+    public override bool CanConvert(Type typeToConvert)
+        => typeof(string) == typeToConvert;
+
+    public override object Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        switch (reader.TokenType)
+        {
+            case JsonTokenType.Number:
+                return reader.TryGetInt64(out var l)
+                    ? l.ToString()
+                    : reader.GetDouble().ToString(CultureInfo.InvariantCulture);
+            case JsonTokenType.String:
+                return reader.GetString() ?? string.Empty;
+            default:
+                {
+                    using var document = JsonDocument.ParseValue(ref reader);
+                    return document.RootElement.Clone().ToString();
+                }
+        }
+    }
+    
+    public override void Write(Utf8JsonWriter writer, object value, JsonSerializerOptions options)
+        => writer.WriteStringValue(value.ToString());
+}