From 758c12101eaebe4dd71c3e600ccd298154954156 Mon Sep 17 00:00:00 2001
From: Bilawal Hameed <bil@spotify.com>
Date: Thu, 26 Mar 2020 16:00:32 +0100
Subject: [PATCH] [core/api] added toggle method to FeatureFlags

---
 packages/core/src/api/apis/definitions/featureFlags.ts | 5 +++++
 packages/core/src/api/app/FeatureFlags.tsx             | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/packages/core/src/api/apis/definitions/featureFlags.ts b/packages/core/src/api/apis/definitions/featureFlags.ts
index c3656ac4cd..dbebec643b 100644
--- a/packages/core/src/api/apis/definitions/featureFlags.ts
+++ b/packages/core/src/api/apis/definitions/featureFlags.ts
@@ -45,6 +45,11 @@ export type FeatureFlagsApi = {
    * Disable an registered feature flag.
    */
   disable(name: FeatureFlagName): void;
+
+  /**
+   * Toggle an registered feature flag on or off.
+   */
+  toggle(name: FeatureFlagName): void;
 };
 
 export const featureFlagsApiRef = new ApiRef<FeatureFlagsApi>({
diff --git a/packages/core/src/api/app/FeatureFlags.tsx b/packages/core/src/api/app/FeatureFlags.tsx
index a5b0c7eaed..55558bfc1a 100644
--- a/packages/core/src/api/app/FeatureFlags.tsx
+++ b/packages/core/src/api/app/FeatureFlags.tsx
@@ -74,6 +74,10 @@ export class FeatureFlags {
     flags.delete(name);
     this.saveUserEnabledFeatureFlags(flags);
   }
+
+  static toggle(name: FeatureFlagName): void {
+    (this.getItem(name) ? this.disable : this.enable).bind(this)(name);
+  }
 }
 
 /**