config,backend-common: move config subscribe method to the base config interface

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
2021-08-12 12:49:45 +02:00
parent b89f04d9f7
commit 90f25476ac
10 changed files with 33 additions and 41 deletions
@@ -26,6 +26,17 @@ export type AppConfig = {
 };

 export type Config = {
+  /**
+   * Subscribes to the configuration object in order to receive a notification
+   * whenever any value within the configuration has changed.
+   *
+   * This method is optional to implement, and consumers need to check if it is
+   * implemented before invoking it.
+   */
+  subscribe?(onChange: () => void): {
+    unsubscribe: () => void;
+  };
+
  has(key: string): boolean;

  keys(): string[];