[Feature] Age restricted (NSFW) application commands support (#2531)

* add `nsfw` to data model & internal methods; add missing property

* add `nsfw` prop to command builders

* add `NsfwCommandAttribute` to Interaction Framework

* working state

* docs?

docs/guides/int_framework/permissions.md

@@ -55,5 +55,10 @@ The amount of nesting you can do is realistically endless.
 > If the nested class is marked with `Group`, as required for setting up subcommands, this example will not work.
 > As mentioned before, subcommands cannot have seperate permissions from the top level command.
 
+### NSFW Commands
+Commands can be limited to only age restricted channels and DMs:
+
+[!code-csharp[Nsfw-Permissions](samples/permissions/nsfw-permissions.cs)]
+
 [permissions]: xref:Discord.GuildPermission
 

docs/guides/int_framework/samples/permissions/nsfw-permissions.cs

@@ -0,0 +1,6 @@
+[NsfwCommand(true)]
+[SlashCommand("beautiful-code", "Get an image of perfect code")]
+public async Task BeautifulCodeAsync(...)
+{
+    ...
+}

src/Discord.Net.Core/Entities/Interactions/ApplicationCommandProperties.cs

@@ -83,6 +83,11 @@ namespace Discord
         /// </summary>
         public Optional<bool> IsDMEnabled { get; set; }
 
+        /// <summary>
+        ///     Gets or sets whether or not this command is age restricted.
+        /// </summary>
+        public Optional<bool> IsNsfw { get; set; }
+
         /// <summary>
         ///     Gets or sets the default permissions required by a user to execute this application command.
         /// </summary>

src/Discord.Net.Core/Entities/Interactions/ContextMenus/MessageCommandBuilder.cs

@@ -46,6 +46,11 @@ namespace Discord
         /// </summary>
         public bool IsDMEnabled { get; set; } = true;
 
+        /// <summary>
+        ///     Gets or sets whether or not this command is age restricted.
+        /// </summary>
+        public bool IsNsfw{ get; set; } = false;
+
         /// <summary>
         ///     Gets or sets the default permission required to use this slash command.
         /// </summary>
@@ -68,7 +73,8 @@ namespace Discord
                 IsDefaultPermission = IsDefaultPermission,
                 IsDMEnabled = IsDMEnabled,
                 DefaultMemberPermissions = DefaultMemberPermissions ?? Optional<GuildPermission>.Unspecified,
-                NameLocalizations = NameLocalizations
+                NameLocalizations = NameLocalizations,
+                IsNsfw = IsNsfw,
             };
 
             return props;
@@ -123,7 +129,7 @@ namespace Discord
         }
 
         /// <summary>
-        ///     Sets whether or not this command can be used in dms
+        ///     Sets whether or not this command can be used in dms.
         /// </summary>
         /// <param name="permission"><see langword="true"/> if the command is available in dms, otherwise <see langword="false"/>.</param>
         /// <returns>The current builder.</returns>
@@ -133,6 +139,17 @@ namespace Discord
             return this;
         }
 
+        /// <summary>
+        ///     Sets whether or not this command is age restricted.
+        /// </summary>
+        /// <param name="permission"><see langword="true"/> if the command is age restricted, otherwise <see langword="false"/>.</param>
+        /// <returns>The current builder.</returns>
+        public MessageCommandBuilder WithNsfw(bool permission)
+        {
+            IsNsfw = permission;
+            return this;
+        }
+
         /// <summary>
         ///     Adds a new entry to the <see cref="NameLocalizations"/> collection.
         /// </summary>

src/Discord.Net.Core/Entities/Interactions/ContextMenus/UserCommandBuilder.cs

@@ -46,6 +46,11 @@ namespace Discord
         /// </summary>
         public bool IsDMEnabled { get; set; } = true;
 
+        /// <summary>
+        ///     Gets or sets whether or not this command is age restricted.
+        /// </summary>
+        public bool IsNsfw { get; set; } = false;
+
         /// <summary>
         ///     Gets or sets the default permission required to use this slash command.
         /// </summary>
@@ -66,7 +71,8 @@ namespace Discord
                 IsDefaultPermission = IsDefaultPermission,
                 IsDMEnabled = IsDMEnabled,
                 DefaultMemberPermissions = DefaultMemberPermissions ?? Optional<GuildPermission>.Unspecified,
-                NameLocalizations = NameLocalizations
+                NameLocalizations = NameLocalizations,
+                IsNsfw = IsNsfw,
             };
 
             return props;
@@ -121,7 +127,7 @@ namespace Discord
         }
         
         /// <summary>
-        ///     Sets whether or not this command can be used in dms
+        ///     Sets whether or not this command can be used in dms.
         /// </summary>
         /// <param name="permission"><see langword="true"/> if the command is available in dms, otherwise <see langword="false"/>.</param>
         /// <returns>The current builder.</returns>
@@ -131,6 +137,17 @@ namespace Discord
             return this;
         }
 
+        /// <summary>
+        ///     Sets whether or not this command is age restricted.
+        /// </summary>
+        /// <param name="permission"><see langword="true"/> if the command is age restricted, otherwise <see langword="false"/>.</param>
+        /// <returns>The current builder.</returns>
+        public UserCommandBuilder WithNsfw(bool permission)
+        {
+            IsNsfw = permission;
+            return this;
+        }
+
         /// <summary>
         ///     Adds a new entry to the <see cref="NameLocalizations"/> collection.
         /// </summary>

src/Discord.Net.Core/Entities/Interactions/IApplicationCommand.cs

@@ -42,6 +42,11 @@ namespace Discord
         /// </remarks>
         bool IsEnabledInDm { get; }
 
+        /// <summary>
+        ///     Indicates whether the command is age restricted.
+        /// </summary>
+        bool IsNsfw { get; }
+
         /// <summary>
         ///     Set of default <see cref="GuildPermission"/> required to invoke the command.
         /// </summary>

src/Discord.Net.Core/Entities/Interactions/SlashCommands/SlashCommandBuilder.cs

@@ -84,6 +84,11 @@ namespace Discord
         ///     Gets or sets whether or not this command can be used in DMs.
         /// </summary>
         public bool IsDMEnabled { get; set; } = true;
+        
+        /// <summary>
+        ///     Gets or sets whether or not this command is age restricted.
+        /// </summary>
+        public bool IsNsfw { get; set; } = false;
 
         /// <summary>
         ///     Gets or sets the default permission required to use this slash command.
@@ -110,7 +115,8 @@ namespace Discord
                 NameLocalizations = _nameLocalizations,
                 DescriptionLocalizations = _descriptionLocalizations,
                 IsDMEnabled = IsDMEnabled,
-                DefaultMemberPermissions = DefaultMemberPermissions ?? Optional<GuildPermission>.Unspecified
+                DefaultMemberPermissions = DefaultMemberPermissions ?? Optional<GuildPermission>.Unspecified,
+                IsNsfw = IsNsfw,
             };
 
             if (Options != null && Options.Any())
@@ -161,7 +167,7 @@ namespace Discord
         }
 
         /// <summary>
-        ///     Sets whether or not this command can be used in dms
+        ///     Sets whether or not this command can be used in dms.
         /// </summary>
         /// <param name="permission"><see langword="true"/> if the command is available in dms, otherwise <see langword="false"/>.</param>
         /// <returns>The current builder.</returns>
@@ -171,6 +177,17 @@ namespace Discord
             return this;
         }
 
+        /// <summary>
+        ///     Sets whether or not this command is age restricted.
+        /// </summary>
+        /// <param name="permission"><see langword="true"/> if the command is age restricted, otherwise <see langword="false"/>.</param>
+        /// <returns>The current builder.</returns>
+        public SlashCommandBuilder WithNsfw(bool permission)
+        {
+            IsNsfw = permission;
+            return this;
+        }
+
         /// <summary>
         ///     Sets the default member permissions required to use this application command.
         /// </summary>

src/Discord.Net.Interactions/Attributes/NsfwCommandAttribute.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace Discord.Interactions
+{
+    /// <summary>
+    ///     Sets the <see cref="IApplicationCommandInfo.IsNsfw"/> property of an application command or module.
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
+    public class NsfwCommandAttribute : Attribute
+    {
+        /// <summary>
+        ///     Gets whether or not this command is age restricted.
+        /// </summary>
+        public bool IsNsfw { get; }
+
+        /// <summary>
+        ///     Sets the <see cref="IApplicationCommandInfo.IsNsfw"/> property of an application command or module.
+        /// </summary>
+        /// <param name="isNsfw">Whether or not this command is age restricted.</param>
+        public NsfwCommandAttribute(bool isNsfw)
+        {
+            IsNsfw = isNsfw;
+        }
+    }
+}

src/Discord.Net.Interactions/Builders/Commands/ContextCommandBuilder.cs

@@ -25,6 +25,11 @@ namespace Discord.Interactions.Builders
         /// </summary>
         public bool IsEnabledInDm { get; set; } = true;
 
+        /// <summary>
+        ///     Gets whether this command is age restricted.
+        /// </summary>
+        public bool IsNsfw { get; set; } = false;
+
         /// <summary>
         ///     Gets the default permissions needed for executing this command.
         /// </summary>
@@ -95,6 +100,19 @@ namespace Discord.Interactions.Builders
             return this;
         }
 
+        /// <summary>
+        ///     Sets <see cref="IsNsfw"/>.
+        /// </summary>
+        /// <param name="isNsfw">New value of the <see cref="IsNsfw"/>.</param>
+        /// <returns>
+        ///     The builder instance.
+        /// </returns>
+        public ContextCommandBuilder SetNsfw(bool isNsfw)
+        {
+            IsNsfw = isNsfw;
+            return this;
+        }
+
         /// <summary>
         ///     Sets <see cref="DefaultMemberPermissions"/>.
         /// </summary>

src/Discord.Net.Interactions/Builders/Commands/SlashCommandBuilder.cs

@@ -25,6 +25,11 @@ namespace Discord.Interactions.Builders
         /// </summary>
         public bool IsEnabledInDm { get; set; } = true;
 
+        /// <summary>
+        ///     Gets whether this command is age restricted.
+        /// </summary>
+        public bool IsNsfw { get; set; } = false;
+
         /// <summary>
         ///     Gets the default permissions needed for executing this command.
         /// </summary>
@@ -95,6 +100,19 @@ namespace Discord.Interactions.Builders
             return this;
         }
 
+        /// <summary>
+        ///     Sets <see cref="IsNsfw"/>.
+        /// </summary>
+        /// <param name="isNsfw">New value of the <see cref="IsNsfw"/>.</param>
+        /// <returns>
+        ///     The builder instance.
+        /// </returns>
+        public SlashCommandBuilder SetNsfw(bool isNsfw)
+        {
+            IsNsfw = isNsfw;
+            return this;
+        }
+
         /// <summary>
         ///     Sets <see cref="DefaultMemberPermissions"/>.
         /// </summary>

src/Discord.Net.Interactions/Builders/ModuleBuilder.cs

@@ -59,6 +59,11 @@ namespace Discord.Interactions.Builders
         /// </summary>
         public bool IsEnabledInDm { get; set; } = true;
 
+        /// <summary>
+        ///     Gets whether this command is age restricted.
+        /// </summary>
+        public bool IsNsfw { get; set; } = false;
+
         /// <summary>
         ///     Gets the default permissions needed for executing this command.
         /// </summary>
@@ -190,6 +195,19 @@ namespace Discord.Interactions.Builders
             return this;
         }
 
+        /// <summary>
+        ///     Sets <see cref="IsNsfw"/>.
+        /// </summary>
+        /// <param name="isNsfw">New value of the <see cref="IsNsfw"/>.</param>
+        /// <returns>
+        ///     The builder instance.
+        /// </returns>
+        public ModuleBuilder SetNsfw(bool isNsfw)
+        {
+            IsNsfw = isNsfw;
+            return this;
+        }
+
         /// <summary>
         ///     Sets <see cref="DefaultMemberPermissions"/>.
         /// </summary>

src/Discord.Net.Interactions/Builders/ModuleClassBuilder.cs

@@ -101,6 +101,9 @@ namespace Discord.Interactions.Builders
                     case DontAutoRegisterAttribute dontAutoRegister:
                         builder.DontAutoRegister = true;
                         break;
+                    case NsfwCommandAttribute nsfwCommand:
+                        builder.SetNsfw(nsfwCommand.IsNsfw);
+                        break;
                     default:
                         builder.AddAttributes(attribute);
                         break;
@@ -192,6 +195,9 @@ namespace Discord.Interactions.Builders
                     case PreconditionAttribute precondition:
                         builder.WithPreconditions(precondition);
                         break;
+                    case NsfwCommandAttribute nsfwCommand:
+                        builder.SetNsfw(nsfwCommand.IsNsfw);
+                        break;
                     default:
                         builder.WithAttributes(attribute);
                         break;
@@ -244,6 +250,9 @@ namespace Discord.Interactions.Builders
                     case PreconditionAttribute precondition:
                         builder.WithPreconditions(precondition);
                         break;
+                    case NsfwCommandAttribute nsfwCommand:
+                        builder.SetNsfw(nsfwCommand.IsNsfw);
+                        break;
                     default:
                         builder.WithAttributes(attribute);
                         break;

src/Discord.Net.Interactions/Info/Commands/ContextCommands/ContextCommandInfo.cs

@@ -20,6 +20,9 @@ namespace Discord.Interactions
         /// <inheritdoc/>
         public bool IsEnabledInDm { get; }
 
+        /// <inheritdoc/>
+        public bool IsNsfw { get; }
+
         /// <inheritdoc/>
         public GuildPermission? DefaultMemberPermissions { get; }
 
@@ -37,6 +40,7 @@ namespace Discord.Interactions
         {
             CommandType = builder.CommandType;
             DefaultPermission = builder.DefaultPermission;
+            IsNsfw = builder.IsNsfw;
             IsEnabledInDm = builder.IsEnabledInDm;
             DefaultMemberPermissions = builder.DefaultMemberPermissions;
             Parameters = builder.Parameters.Select(x => x.Build(this)).ToImmutableArray();

src/Discord.Net.Interactions/Info/Commands/SlashCommandInfo.cs

@@ -29,6 +29,9 @@ namespace Discord.Interactions
         /// <inheritdoc/>
         public bool IsEnabledInDm { get; }
 
+        /// <inheritdoc/>
+        public bool IsNsfw { get; }
+
         /// <inheritdoc/>
         public GuildPermission? DefaultMemberPermissions { get; }
 
@@ -48,6 +51,7 @@ namespace Discord.Interactions
             Description = builder.Description;
             DefaultPermission = builder.DefaultPermission;
             IsEnabledInDm = builder.IsEnabledInDm;
+            IsNsfw = builder.IsNsfw;
             DefaultMemberPermissions = builder.DefaultMemberPermissions;
             Parameters = builder.Parameters.Select(x => x.Build(this)).ToImmutableArray();
             FlattenedParameters = FlattenParameters(Parameters).ToImmutableArray();

src/Discord.Net.Interactions/Info/IApplicationCommandInfo.cs

@@ -28,6 +28,11 @@ namespace Discord.Interactions
         /// </summary>
         public bool IsEnabledInDm { get; }
 
+        /// <summary>
+        ///     Gets whether this command can is age restricted.
+        /// </summary>
+        public bool IsNsfw { get; }
+
         /// <summary>
         ///     Gets the default permissions needed for executing this command.
         /// </summary>

src/Discord.Net.Interactions/Info/ModuleInfo.cs

@@ -49,6 +49,11 @@ namespace Discord.Interactions
         /// </summary>
         public bool IsEnabledInDm { get; }
 
+        /// <summary>
+        ///     Gets whether this command is age restricted.
+        /// </summary>
+        public bool IsNsfw { get; }
+
         /// <summary>
         ///     Gets the default permissions needed for executing this command.
         /// </summary>
@@ -121,6 +126,7 @@ namespace Discord.Interactions
             Description = builder.Description;
             Parent = parent;
             DefaultPermission = builder.DefaultPermission;
+            IsNsfw = builder.IsNsfw;
             IsEnabledInDm = builder.IsEnabledInDm;
             DefaultMemberPermissions = BuildDefaultMemberPermissions(builder);
             SlashCommands = BuildSlashCommands(builder).ToImmutableArray();

src/Discord.Net.Interactions/Utilities/ApplicationCommandRestUtil.cs

@@ -54,6 +54,7 @@ namespace Discord.Interactions
                 Description = commandInfo.Description,
                 IsDefaultPermission = commandInfo.DefaultPermission,
                 IsDMEnabled = commandInfo.IsEnabledInDm,
+                IsNsfw = commandInfo.IsNsfw,
                 DefaultMemberPermissions = ((commandInfo.DefaultMemberPermissions ?? 0) | (commandInfo.Module.DefaultMemberPermissions ?? 0)).SanitizeGuildPermissions(),
             }.WithNameLocalizations(localizationManager?.GetAllNames(commandPath, LocalizationTarget.Command) ?? ImmutableDictionary<string, string>.Empty)
             .WithDescriptionLocalizations(localizationManager?.GetAllDescriptions(commandPath, LocalizationTarget.Command) ?? ImmutableDictionary<string, string>.Empty)
@@ -97,7 +98,8 @@ namespace Discord.Interactions
                     Name = commandInfo.Name,
                     IsDefaultPermission = commandInfo.DefaultPermission,
                     DefaultMemberPermissions = ((commandInfo.DefaultMemberPermissions ?? 0) | (commandInfo.Module.DefaultMemberPermissions ?? 0)).SanitizeGuildPermissions(),
-                    IsDMEnabled = commandInfo.IsEnabledInDm
+                    IsDMEnabled = commandInfo.IsEnabledInDm,
+                    IsNsfw = commandInfo.IsNsfw,
                 }
                 .WithNameLocalizations(localizationManager?.GetAllNames(commandPath, LocalizationTarget.Command) ?? ImmutableDictionary<string, string>.Empty)
                 .Build(),
@@ -106,6 +108,7 @@ namespace Discord.Interactions
                     Name = commandInfo.Name,
                     IsDefaultPermission = commandInfo.DefaultPermission,
                     DefaultMemberPermissions = ((commandInfo.DefaultMemberPermissions ?? 0) | (commandInfo.Module.DefaultMemberPermissions ?? 0)).SanitizeGuildPermissions(),
+                    IsNsfw = commandInfo.IsNsfw,
                     IsDMEnabled = commandInfo.IsEnabledInDm
                 }
                 .WithNameLocalizations(localizationManager?.GetAllNames(commandPath, LocalizationTarget.Command) ?? ImmutableDictionary<string, string>.Empty)
@@ -162,6 +165,7 @@ namespace Discord.Interactions
                     Description = moduleInfo.Description,
                     IsDefaultPermission = moduleInfo.DefaultPermission,
                     IsDMEnabled = moduleInfo.IsEnabledInDm,
+                    IsNsfw = moduleInfo.IsNsfw,
                     DefaultMemberPermissions = moduleInfo.DefaultMemberPermissions
                 }
                 .WithNameLocalizations(localizationManager?.GetAllNames(modulePath, LocalizationTarget.Group) ?? ImmutableDictionary<string, string>.Empty)
@@ -225,6 +229,7 @@ namespace Discord.Interactions
                     IsDefaultPermission = command.IsDefaultPermission,
                     DefaultMemberPermissions = (GuildPermission)command.DefaultMemberPermissions.RawValue,
                     IsDMEnabled = command.IsEnabledInDm,
+                    IsNsfw = command.IsNsfw,
                     Options = command.Options?.Select(x => x.ToApplicationCommandOptionProps())?.ToList() ?? Optional<List<ApplicationCommandOptionProperties>>.Unspecified,
                     NameLocalizations = command.NameLocalizations?.ToImmutableDictionary() ?? ImmutableDictionary<string, string>.Empty,
                     DescriptionLocalizations = command.DescriptionLocalizations?.ToImmutableDictionary() ?? ImmutableDictionary<string, string>.Empty,
@@ -234,6 +239,7 @@ namespace Discord.Interactions
                     Name = command.Name,
                     IsDefaultPermission = command.IsDefaultPermission,
                     DefaultMemberPermissions = (GuildPermission)command.DefaultMemberPermissions.RawValue,
+                    IsNsfw = command.IsNsfw,
                     IsDMEnabled = command.IsEnabledInDm,
                     NameLocalizations = command.NameLocalizations?.ToImmutableDictionary() ?? ImmutableDictionary<string, string>.Empty,
                     DescriptionLocalizations = command.DescriptionLocalizations?.ToImmutableDictionary() ?? ImmutableDictionary<string, string>.Empty
@@ -243,6 +249,7 @@ namespace Discord.Interactions
                     Name = command.Name,
                     IsDefaultPermission = command.IsDefaultPermission,
                     DefaultMemberPermissions = (GuildPermission)command.DefaultMemberPermissions.RawValue,
+                    IsNsfw = command.IsNsfw,
                     IsDMEnabled = command.IsEnabledInDm,
                     NameLocalizations = command.NameLocalizations?.ToImmutableDictionary() ?? ImmutableDictionary<string, string>.Empty,
                     DescriptionLocalizations = command.DescriptionLocalizations?.ToImmutableDictionary() ?? ImmutableDictionary<string, string>.Empty

src/Discord.Net.Rest/API/Common/ApplicationCommand.cs

@@ -44,5 +44,8 @@ namespace Discord.API
 
         [JsonProperty("default_member_permissions")]
         public Optional<GuildPermission?> DefaultMemberPermission { get; set; }
+
+        [JsonProperty("nsfw")]
+        public Optional<bool?> Nsfw { get; set; }
     }
 }

src/Discord.Net.Rest/API/Rest/CreateApplicationCommandParams.cs

@@ -35,9 +35,12 @@ namespace Discord.API.Rest
         [JsonProperty("default_member_permissions")]
         public Optional<GuildPermission?> DefaultMemberPermission { get; set; }
 
+        [JsonProperty("nsfw")]
+        public Optional<bool> Nsfw { get; set; }
+
         public CreateApplicationCommandParams() { }
         public CreateApplicationCommandParams(string name, string description, ApplicationCommandType type, ApplicationCommandOption[] options = null,
-            IDictionary<string, string> nameLocalizations = null, IDictionary<string, string> descriptionLocalizations = null)
+            IDictionary<string, string> nameLocalizations = null, IDictionary<string, string> descriptionLocalizations = null, bool nsfw = false)
         {
             Name = name;
             Description = description;
@@ -45,6 +48,7 @@ namespace Discord.API.Rest
             Type = type;
             NameLocalizations = nameLocalizations?.ToDictionary(x => x.Key, x => x.Value) ?? Optional<Dictionary<string, string>>.Unspecified;
             DescriptionLocalizations = descriptionLocalizations?.ToDictionary(x => x.Key, x => x.Value) ?? Optional<Dictionary<string, string>>.Unspecified;
+            Nsfw = nsfw;
         }
     }
 }

src/Discord.Net.Rest/API/Rest/ModifyApplicationCommandParams.cs

@@ -17,6 +17,12 @@ namespace Discord.API.Rest
         [JsonProperty("default_permission")]
         public Optional<bool> DefaultPermission { get; set; }
 
+        [JsonProperty("nsfw")]
+        public Optional<bool> Nsfw { get; set; }
+
+        [JsonProperty("default_member_permissions")]
+        public Optional<GuildPermission?> DefaultMemberPermission { get; set; }
+
         [JsonProperty("name_localizations")]
         public Optional<Dictionary<string, string>> NameLocalizations { get; set; }
 

src/Discord.Net.Rest/Entities/Interactions/InteractionHelper.cs

@@ -107,7 +107,8 @@ namespace Discord.Rest
 
                 // TODO: better conversion to nullable optionals
                 DefaultMemberPermission = arg.DefaultMemberPermissions.ToNullable(),
-                DmPermission = arg.IsDMEnabled.ToNullable() 
+                DmPermission = arg.IsDMEnabled.ToNullable(),
+                Nsfw = arg.IsNsfw.GetValueOrDefault(false),
             };
 
             if (arg is SlashCommandProperties slashProps)
@@ -147,8 +148,9 @@ namespace Discord.Rest
 
                     // TODO: better conversion to nullable optionals
                     DefaultMemberPermission = arg.DefaultMemberPermissions.ToNullable(),
-                    DmPermission = arg.IsDMEnabled.ToNullable()
-                };
+                    DmPermission = arg.IsDMEnabled.ToNullable(),
+                    Nsfw = arg.IsNsfw.GetValueOrDefault(false)
+                    };
 
                 if (arg is SlashCommandProperties slashProps)
                 {
@@ -190,7 +192,8 @@ namespace Discord.Rest
 
                     // TODO: better conversion to nullable optionals
                     DefaultMemberPermission = arg.DefaultMemberPermissions.ToNullable(),
-                    DmPermission = arg.IsDMEnabled.ToNullable()
+                    DmPermission = arg.IsDMEnabled.ToNullable(),
+                    Nsfw = arg.IsNsfw.GetValueOrDefault(false)
                 };
 
                 if (arg is SlashCommandProperties slashProps)
@@ -252,7 +255,9 @@ namespace Discord.Rest
                         ? args.IsDefaultPermission.Value
                         : Optional<bool>.Unspecified,
                 NameLocalizations = args.NameLocalizations?.ToDictionary(),
-                DescriptionLocalizations = args.DescriptionLocalizations?.ToDictionary()
+                DescriptionLocalizations = args.DescriptionLocalizations?.ToDictionary(),
+                Nsfw = args.IsNsfw.GetValueOrDefault(false),
+                DefaultMemberPermission = args.DefaultMemberPermissions.ToNullable()
             };
 
             if (args is SlashCommandProperties slashProps)
@@ -312,7 +317,8 @@ namespace Discord.Rest
 
                 // TODO: better conversion to nullable optionals
                 DefaultMemberPermission = arg.DefaultMemberPermissions.ToNullable(),
-                DmPermission = arg.IsDMEnabled.ToNullable()
+                DmPermission = arg.IsDMEnabled.ToNullable(),
+                Nsfw = arg.IsNsfw.GetValueOrDefault(false)
             };
 
             if (arg is SlashCommandProperties slashProps)
@@ -347,7 +353,9 @@ namespace Discord.Rest
                         ? arg.IsDefaultPermission.Value
                         : Optional<bool>.Unspecified,
                 NameLocalizations = arg.NameLocalizations?.ToDictionary(),
-                DescriptionLocalizations = arg.DescriptionLocalizations?.ToDictionary()
+                DescriptionLocalizations = arg.DescriptionLocalizations?.ToDictionary(),
+                Nsfw = arg.IsNsfw.GetValueOrDefault(false),
+                DefaultMemberPermission = arg.DefaultMemberPermissions.ToNullable()
             };
 
             if (arg is SlashCommandProperties slashProps)

src/Discord.Net.Rest/Entities/Interactions/RestApplicationCommand.cs

@@ -30,6 +30,9 @@ namespace Discord.Rest
         /// <inheritdoc/>
         public bool IsEnabledInDm { get; private set; }
 
+        /// <inheritdoc/>
+        public bool IsNsfw { get; private set; }
+
         /// <inheritdoc/>
         public GuildPermissions DefaultMemberPermissions { get; private set; }
 
@@ -101,6 +104,7 @@ namespace Discord.Rest
             
             IsEnabledInDm = model.DmPermission.GetValueOrDefault(true).GetValueOrDefault(true);
             DefaultMemberPermissions = new GuildPermissions((ulong)model.DefaultMemberPermission.GetValueOrDefault(0).GetValueOrDefault(0));
+            IsNsfw = model.Nsfw.GetValueOrDefault(false).GetValueOrDefault(false);
         }
 
         /// <inheritdoc/>

src/Discord.Net.WebSocket/Entities/Interaction/SocketBaseCommand/SocketApplicationCommand.cs

@@ -39,6 +39,9 @@ namespace Discord.WebSocket
         /// <inheritdoc/>
         public bool IsEnabledInDm { get; private set; }
 
+        /// <inheritdoc/>
+        public bool IsNsfw { get; private set; }
+
         /// <inheritdoc/>
         public GuildPermissions DefaultMemberPermissions { get; private set; }
 
@@ -130,6 +133,7 @@ namespace Discord.WebSocket
 
             IsEnabledInDm = model.DmPermission.GetValueOrDefault(true).GetValueOrDefault(true);
             DefaultMemberPermissions = new GuildPermissions((ulong)model.DefaultMemberPermission.GetValueOrDefault(0).GetValueOrDefault(0));
+            IsNsfw = model.Nsfw.GetValueOrDefault(false).GetValueOrDefault(false);
         }
 
         /// <inheritdoc/>