feat(Member): support member-specific banners

index.d.ts

@@ -3709,6 +3709,7 @@ declare namespace Dysnomia {
     addRole(roleID: string, reason?: string): Promise<void>;
     ban(options?: BanMemberOptions): Promise<void>;
     dynamicAvatarURL(format?: ImageFormat, size?: number): string;
+    dynamicBannerURL(format?: ImageFormat, size?: number): string | null;
     edit(options: MemberOptions, reason?: string): Promise<void>;
     kick(reason?: string): Promise<void>;
     removeRole(roleID: string, reason?: string): Promise<void>;

lib/structures/Member.js

@@ -148,6 +148,13 @@ class Member extends Base {
         if(data.flags !== undefined) {
             this.flags = data.flags;
         }
+        if(data.banner !== undefined) {
+            /**
+             * The hash of the member's guild-specific banner, or null if no banner
+             * @type {String?}
+             */
+            this.banner = data.banner;
+        }
         if(data.user !== undefined) {
             this.user.update(data.user);
         }
@@ -169,20 +176,12 @@ class Member extends Base {
         return this.avatar ? this.guild.shard.client._formatImage(Endpoints.GUILD_AVATAR(this.guild.id, this.id, this.avatar)) : this.user.avatarURL;
     }
 
-    /**
-     * The hash of the user's banner, or null if no banner (REST only)
-     * @type {String?}
-     */
-    get banner() {
-        return this.user.banner;
-    }
-
     /**
      * The URL of the user's banner
      * @type {String?}
      */
     get bannerURL() {
-        return this.user.bannerURL;
+        return this.banner ? this.guild.shard.client._formatImage(Endpoints.BANNER(this.id, this.banner)) : this.user.bannerURL;
     }
 
     /**
@@ -332,6 +331,19 @@ class Member extends Base {
         return this.guild.shard.client._formatImage(Endpoints.GUILD_AVATAR(this.guild.id, this.id, this.avatar), format, size);
     }
 
+    /**
+     * Get the user's banner with the given format and size
+     * @param {String} [format] The filetype of the banner ("jpg", "jpeg", "png", "gif", or "webp")
+     * @param {Number} [size] The size of the banner (any power of two between 16 and 4096)
+     * @returns {String?}
+     */
+    dynamicBannerURL(format, size) {
+        if(!this.banner) {
+            return this.user.dynamicBannerURL(format, size);
+        }
+        return this.guild.shard.client._formatImage(Endpoints.BANNER(this.id, this.banner), format, size);
+    }
+
     /**
      * Edit the guild member
      * @param {Object} options The properties to edit