Add a mutation that sets endpoints into the MR Notes state

app/assets/javascripts/mr_notes/stores/modules/index.js

@@ -4,6 +4,7 @@ import mutations from '../mutations';
 
 export default () => ({
   state: {
+    endpoints: {},
     activeTab: null,
   },
   actions,

app/assets/javascripts/mr_notes/stores/mutation_types.js

 export default {
   SET_ACTIVE_TAB: 'SET_ACTIVE_TAB',
+  SET_ENDPOINTS: 'SET_ENDPOINTS',
 };

app/assets/javascripts/mr_notes/stores/mutations.js

@@ -4,4 +4,7 @@ export default {
   [types.SET_ACTIVE_TAB](state, tab) {
     Object.assign(state, { activeTab: tab });
   },
+  [types.SET_ENDPOINTS](state, endpoints) {
+    Object.assign(state, { endpoints });
+  },
 };

spec/frontend/mr_notes/stores/mutations_spec.js

+import mutationTypes from '~/mr_notes/stores/mutation_types';
+import mutations from '~/mr_notes/stores/mutations';
+
+describe('MR Notes Mutations', () => {
+  describe(mutationTypes.SET_ENDPOINTS, () => {
+    it('should set the endpoints value', () => {
+      const state = {};
+      const endpoints = { endpointA: 'A', endpointB: 'B' };
+
+      mutations[mutationTypes.SET_ENDPOINTS](state, endpoints);
+
+      expect(state.endpoints.endpointA).toBe('A');
+      expect(state.endpoints.endpointB).toBe('B');
+    });
+  });
+});