feat(SessionManager): New feature from Discord

src/managers/SessionManager.js

@@ -0,0 +1,52 @@
+'use strict';
+
+const CachedManager = require('./CachedManager');
+const { Error } = require('../errors/DJSError');
+const Session = require('../structures/Session');
+/**
+ * Manages API methods for users and stores their cache.
+ * @extends {CachedManager}
+ */
+class SessionManager extends CachedManager {
+  constructor(client, iterable) {
+    super(client, Session, iterable);
+  }
+  /**
+   * Fetch all sessions of the client.
+   * @returns {Promise<SessionManager>}
+   */
+  fetch() {
+    return new Promise((resolve, reject) => {
+      this.client.api.auth.session
+        .get()
+        .then(data => {
+          const allData = data.user_sessions;
+          for (const session of allData) {
+            this._add(new Session(this.client, session), true);
+          }
+          resolve(this);
+        })
+        .catch(reject);
+    });
+  }
+
+  /**
+   * Logout the client (remote).
+   * @param {string} password User's password
+   * @param {string | null} mfaCode MFA code (if 2FA is enabled)
+   * @returns {Promise<undefined>}
+   */
+  logoutAllDevices(password, mfaCode) {
+    password = password || this.client.password;
+    if (!password || typeof password !== 'string') throw new Error('REQUIRE_PASSWORD');
+    return this.client.api.auth.sessions.logout({
+      data: {
+        session_id_hashes: this.cache.map(session => session.id),
+        password,
+        code: typeof mfaCode === 'string' ? mfaCode : undefined,
+      },
+    });
+  }
+}
+
+module.exports = SessionManager;