1 files changed, 26 insertions, 0 deletions
diff --git a/packages/gitbook-core/src/models/StateApi.js b/packages/gitbook-core/src/models/StateApi.js
new file mode 100644
index 0000000..430833b
--- /dev/null
+++ b/packages/gitbook-core/src/models/StateApi.js
@@ -0,0 +1,26 @@
+const { Record } = require('immutable');
+
+const DEFAULTS = {
+    currentUser: null
+};
+
+/**
+ * State for the API, it stores informations about the logged in user, etc.
+ * @type {Record}
+ */
+class StateApi extends Record(DEFAULTS) {
+    static create(state) {
+        return state instanceof StateApi ?
+            state : new StateApi(state);
+    }
+
+    /**
+     * Check if reader is an user is loggedin.
+     * @return {Boolean}
+     */
+    get isLoggedIn() {
+        return Boolean(this.currentUser);
+    }
+}
+
+module.exports = StateApi;