Remove redux-promise-middleware (#1022)

* Use shapeshift for all swaps.

* Replace existing redux-promise-middleware based CCRequest action with saga based action.

* Remove module from package.json, store middleware, webpack_config.

* fix snapshot

* Add return typing

* Add test for saga

common/actions/rates/actionCreators.ts

@@ -1,12 +1,12 @@
 import * as interfaces from './actionTypes';
 import { TypeKeys } from './constants';
-import { fetchRates, CCResponse } from './actionPayloads';
+import { CCResponse } from 'api/rates';
 
-export type TFetchCCRates = typeof fetchCCRates;
-export function fetchCCRates(symbols: string[] = []): interfaces.FetchCCRates {
+export type TFetchCCRatesRequested = typeof fetchCCRatesRequested;
+export function fetchCCRatesRequested(symbols: string[] = []): interfaces.FetchCCRatesRequested {
   return {
-    type: TypeKeys.RATES_FETCH_CC,
-    payload: fetchRates(symbols)
+    type: TypeKeys.RATES_FETCH_CC_REQUESTED,
+    payload: symbols
   };
 }
 

common/actions/rates/actionTypes.ts

@@ -1,9 +1,9 @@
 import { TypeKeys } from './constants';
-import { CCResponse } from './actionPayloads';
+import { CCResponse } from 'api/rates';
 
-export interface FetchCCRates {
-  type: TypeKeys.RATES_FETCH_CC;
-  payload: Promise<CCResponse>;
+export interface FetchCCRatesRequested {
+  type: TypeKeys.RATES_FETCH_CC_REQUESTED;
+  payload: string[];
 }
 
 /*** Set rates ***/
@@ -17,4 +17,4 @@ export interface FetchCCRatesFailed {
 }
 
 /*** Union Type ***/
-export type RatesAction = FetchCCRates | FetchCCRatesSucceeded | FetchCCRatesFailed;
+export type RatesAction = FetchCCRatesRequested | FetchCCRatesSucceeded | FetchCCRatesFailed;

common/actions/rates/constants.ts

@@ -1,5 +1,5 @@
 export enum TypeKeys {
-  RATES_FETCH_CC = 'RATES_FETCH_CC',
+  RATES_FETCH_CC_REQUESTED = 'RATES_FETCH_CC_REQUESTED',
   RATES_FETCH_CC_FAILED = 'RATES_FETCH_CC_FAILED',
   RATES_FETCH_CC_SUCCEEDED = 'RATES_FETCH_CC_SUCCEEDED'
 }

common/actions/rates/index.ts

@@ -1,3 +1,2 @@
 export * from './actionCreators';
 export * from './actionTypes';
-export * from './actionPayloads';

common/components/BalanceSidebar/EquivalentValues.tsx

@@ -2,7 +2,8 @@ import React from 'react';
 import translate from 'translations';
 import { UnitDisplay, Spinner } from 'components/ui';
 import Select from 'react-select';
-import { TFetchCCRates, fetchCCRates, rateSymbols } from 'actions/rates';
+import { TFetchCCRatesRequested, fetchCCRatesRequested } from 'actions/rates';
+import { rateSymbols } from 'api/rates';
 import { chain, flatMap } from 'lodash';
 import { TokenBalance, getShownTokenBalances } from 'selectors/wallet';
 import { Balance } from 'libs/wallet';
@@ -43,7 +44,7 @@ interface StateProps {
 }
 
 interface DispatchProps {
-  fetchCCRates: TFetchCCRates;
+  fetchCCRates: TFetchCCRatesRequested;
 }
 
 type Props = StateProps & DispatchProps;
@@ -266,4 +267,4 @@ function mapStateToProps(state: AppState): StateProps {
   };
 }
 
-export default connect(mapStateToProps, { fetchCCRates })(EquivalentValues);
+export default connect(mapStateToProps, { fetchCCRates: fetchCCRatesRequested })(EquivalentValues);

common/components/TXMetaDataPanel/TXMetaDataPanel.tsx

@@ -12,7 +12,7 @@ import {
   reset,
   TReset
 } from 'actions/transaction';
-import { fetchCCRates, TFetchCCRates } from 'actions/rates';
+import { fetchCCRatesRequested, TFetchCCRatesRequested } from 'actions/rates';
 import { getNetworkConfig, getOffline } from 'selectors/config';
 import { AppState } from 'reducers';
 import { Units } from 'libs/units';
@@ -32,7 +32,7 @@ interface StateProps {
 interface DispatchProps {
   inputGasPrice: TInputGasPrice;
   inputGasPriceIntent: TInputGasPriceIntent;
-  fetchCCRates: TFetchCCRates;
+  fetchCCRates: TFetchCCRatesRequested;
   getNonceRequested: TGetNonceRequested;
   reset: TReset;
 }
@@ -144,7 +144,7 @@ function mapStateToProps(state: AppState): StateProps {
 export default connect(mapStateToProps, {
   inputGasPrice,
   inputGasPriceIntent,
-  fetchCCRates,
+  fetchCCRates: fetchCCRatesRequested,
   getNonceRequested,
   reset
 })(TXMetaDataPanel);

common/reducers/rates.ts

@@ -1,4 +1,5 @@
-import { FetchCCRatesSucceeded, RatesAction, CCResponse } from 'actions/rates';
+import { FetchCCRatesSucceeded, RatesAction } from 'actions/rates';
+import { CCResponse } from 'api/rates';
 import { TypeKeys } from 'actions/rates/constants';
 
 // SYMBOL -> PRICE TO BUY 1 ETH

common/sagas/index.ts

@@ -1,6 +1,7 @@
 import configSaga from './config';
 import deterministicWallets from './deterministicWallets';
 import notifications from './notifications';
+import rates from './rates';
 import {
   swapTimerSaga,
   pollBityOrderStatusSaga,
@@ -31,5 +32,6 @@ export default {
   wallet,
   transaction,
   deterministicWallets,
-  swapProviderSaga
+  swapProviderSaga,
+  rates
 };

common/sagas/rates.ts

@@ -0,0 +1,19 @@
+import { fetchCCRatesSucceeded, fetchCCRatesFailed, FetchCCRatesRequested } from 'actions/rates';
+import { SagaIterator } from 'redux-saga';
+import { call, put, takeLatest } from 'redux-saga/effects';
+import { fetchRates, CCResponse } from 'api/rates';
+import { TypeKeys } from 'actions/rates/constants';
+
+export function* fetchRatesSaga(action: FetchCCRatesRequested): SagaIterator {
+  try {
+    const rates: CCResponse = yield call(fetchRates, action.payload);
+    yield put(fetchCCRatesSucceeded(rates));
+  } catch (e) {
+    yield put(fetchCCRatesFailed());
+    return;
+  }
+}
+
+export default function* ratesSaga(): SagaIterator {
+  yield takeLatest(TypeKeys.RATES_FETCH_CC_REQUESTED, fetchRatesSaga);
+}

common/store.ts

@@ -12,7 +12,6 @@ import { createLogger } from 'redux-logger';
 import createSagaMiddleware from 'redux-saga';
 import { loadStatePropertyOrEmptyObject, saveState } from 'utils/localStorage';
 import RootReducer, { AppState } from './reducers';
-import promiseMiddleware from 'redux-promise-middleware';
 import { getNodeConfigFromId } from 'utils/node';
 import { getNetworkConfigFromId } from 'utils/network';
 import { dedupeCustomTokens } from 'utils/tokens';
@@ -23,27 +22,15 @@ const configureStore = () => {
     collapsed: true
   });
   const sagaMiddleware = createSagaMiddleware();
-  const reduxPromiseMiddleWare = promiseMiddleware({
-    promiseTypeSuffixes: ['REQUESTED', 'SUCCEEDED', 'FAILED']
-  });
   let middleware;
   let store;
 
   if (process.env.NODE_ENV !== 'production') {
     middleware = composeWithDevTools(
-      applyMiddleware(
-        sagaMiddleware,
-        logger,
-        reduxPromiseMiddleWare,
-        routerMiddleware(history as any)
-      )
+      applyMiddleware(sagaMiddleware, logger, routerMiddleware(history as any))
     );
   } else {
-    middleware = applyMiddleware(
-      sagaMiddleware,
-      reduxPromiseMiddleWare,
-      routerMiddleware(history as any)
-    );
+    middleware = applyMiddleware(sagaMiddleware, routerMiddleware(history as any));
   }
 
   const localSwapState = loadStatePropertyOrEmptyObject<SwapState>('swap');

package.json

@@ -45,7 +45,6 @@
     "react-transition-group": "2.2.1",
     "redux": "3.7.2",
     "redux-logger": "3.0.6",
-    "redux-promise-middleware": "4.4.2",
     "redux-saga": "0.16.0",
     "scryptsy": "2.0.0",
     "uuid": "3.2.1",
@@ -68,7 +67,6 @@
     "@types/react-router-redux": "5.0.11",
     "@types/react-select": "1.2.0",
     "@types/redux-logger": "3.0.5",
-    "@types/redux-promise-middleware": "0.0.9",
     "@types/uuid": "3.4.3",
     "@types/webpack-env": "1.13.4",
     "@types/zxcvbn": "4.4.0",

spec/reducers/rates.spec.ts

@@ -1,9 +1,10 @@
 import { rates, INITIAL_STATE } from 'reducers/rates';
 import * as ratesActions from 'actions/rates';
+import { CCResponse } from 'api/rates';
 
 describe('rates reducer', () => {
   it('should handle RATES_FETCH_CC_SUCCEEDED', () => {
-    const fakeCCResp: ratesActions.CCResponse = {
+    const fakeCCResp: CCResponse = {
       ETH: {
         USD: 0,
         BTC: 1,

spec/sagas/rates.spec.ts

@@ -0,0 +1,27 @@
+import { fetchRatesSaga } from 'sagas/rates';
+import { call, put } from 'redux-saga/effects';
+import { fetchCCRatesSucceeded, fetchCCRatesFailed, fetchCCRatesRequested } from 'actions/rates';
+import { fetchRates } from 'api/rates';
+describe('fetch rates saga success', () => {
+  const saga = fetchRatesSaga(fetchCCRatesRequested());
+  it('should fetch the rates', () => {
+    expect(saga.next().value).toEqual(call(fetchRates, []));
+  });
+  it('should dispatch a success action', () => {
+    expect(saga.next({}).value).toEqual(put(fetchCCRatesSucceeded({})));
+  });
+  it('should be done', () => {
+    expect(saga.next().done).toEqual(true);
+  });
+});
+
+describe('fetch rates saga failure', () => {
+  const saga = fetchRatesSaga(fetchCCRatesRequested());
+  it('it should throw and dispatch a failure action', () => {
+    saga.next();
+    expect(saga.throw!().value).toEqual(put(fetchCCRatesFailed()));
+  });
+  it('should be done', () => {
+    expect(saga.next().done).toEqual(true);
+  });
+});

webpack_config/config.js

@@ -66,7 +66,6 @@ module.exports = {
     'react-transition-group',
     'redux',
     'redux-logger',
-    'redux-promise-middleware',
     'redux-saga',
     'scryptsy',
     'uuid',