Add get guild role endpoint (#3861)

packages/rest/src/manager.ts

@@ -1293,6 +1293,10 @@ export function createRestManager(options: CreateRestManagerOptions): RestManage
       return await rest.get<DiscordRole[]>(rest.routes.guilds.roles.all(guildId))
     },
 
+    async getRole(guildId, roleId) {
+      return await rest.get<DiscordRole>(rest.routes.guilds.roles.one(guildId, roleId))
+    },
+
     async getScheduledEvent(guildId, eventId, options) {
       return await rest.get<DiscordScheduledEvent>(rest.routes.guilds.events.event(guildId, eventId, options?.withUserCount))
     },

packages/rest/src/types.ts

@@ -2170,6 +2170,16 @@ export interface RestManager {
    * @see {@link https://discord.com/developers/docs/resources/guild#get-guild-roles}
    */
   getRoles: (guildId: BigString) => Promise<CamelizedDiscordRole[]>
+  /**
+   * Gets a role by id for a guild.
+   *
+   * @param guildId - The ID of the guild to get role for.
+   * @param roleID - The ID of the role.
+   * @returns A {@link CamelizedDiscordRole} object.
+   *
+   * @see {@link https://discord.com/developers/docs/resources/guild#get-guild-role}
+   */
+  getRole: (guildId: BigString, roleId: BigString) => Promise<CamelizedDiscordRole>
   /**
    * Gets a scheduled event by its ID.
    *