1 files changed, 29 insertions, 1 deletions

diff --git a/packages/instant/src/redux/reducer.ts b/packages/instant/src/redux/reducer.ts
index adecf2ab7..4ff49c225 100644
--- a/packages/instant/src/redux/reducer.ts
+++ b/packages/instant/src/redux/reducer.ts
@@ -7,13 +7,22 @@ import { AsyncProcessState } from '../types';
 
 import { Action, ActionTypes } from './actions';
 
-export interface State {
+interface BaseState {
     selectedAssetData?: string;
     selectedAssetAmount?: BigNumber;
     selectedAssetBuyState: AsyncProcessState;
     ethUsdPrice?: BigNumber;
     latestBuyQuote?: BuyQuote;
 }
+interface StateWithError extends BaseState {
+    latestError: any;
+    latestErrorDismissed: boolean;
+}
+interface StateWithoutError extends BaseState {
+    latestError: undefined;
+    latestErrorDismissed: undefined;
+}
+export type State = StateWithError | StateWithoutError;
 
 export const INITIAL_STATE: State = {
     // TODO: Remove hardcoded zrxAssetData
@@ -22,6 +31,8 @@ export const INITIAL_STATE: State = {
     selectedAssetBuyState: AsyncProcessState.NONE,
     ethUsdPrice: undefined,
     latestBuyQuote: undefined,
+    latestError: undefined,
+    latestErrorDismissed: undefined,
 };
 
 export const reducer = (state: State = INITIAL_STATE, action: Action): State => {
@@ -46,6 +57,23 @@ export const reducer = (state: State = INITIAL_STATE, action: Action): State =>
                 ...state,
                 selectedAssetBuyState: action.data,
             };
+        case ActionTypes.SET_ERROR:
+            return {
+                ...state,
+                latestError: action.data,
+                latestErrorDismissed: false,
+            };
+        case ActionTypes.HIDE_ERROR:
+            return {
+                ...state,
+                latestErrorDismissed: true,
+            };
+        case ActionTypes.CLEAR_ERROR:
+            return {
+                ...state,
+                latestError: undefined,
+                latestErrorDismissed: undefined,
+            };
         default:
             return state;
     }