bump: v0.27.0-rc.2

src/actions.js

@@ -135,7 +135,7 @@ export const types = {
   NETWORKSETTINGS_UPDATE_INVALID: 'NETWORKSETTINGS_UPDATE_INVALID',
   /* It indicates the update request has failed. */
   NETWORKSETTINGS_UPDATE_FAILURE: 'NETWORK_SETTINGS_UPDATE_FAILURE',
-  /* It updates the redux state of network settings status */
+  /* It updates the redux state of network settings status. */
   NETWORKSETTINGS_UPDATE_READY: 'NETWORK_SETTINGS_UPDATE_READY',
 };
 

src/constants.js

@@ -158,6 +158,7 @@ export const WALLET_SERVICE_FEATURE_TOGGLE = 'wallet-service-mobile.rollout';
 export const PUSH_NOTIFICATION_FEATURE_TOGGLE = 'push-notification.rollout';
 export const WALLET_CONNECT_FEATURE_TOGGLE = 'wallet-connect-mobile.rollout';
 export const NETWORK_SETTINGS_FEATURE_TOGGLE = 'network-settings.rollout';
+export const NANO_CONTRACT_FEATURE_TOGGLE = 'nano-contract.rollout';
 
 /**
  * Default feature toggle values.
@@ -172,6 +173,7 @@ export const FEATURE_TOGGLE_DEFAULTS = {
   [PUSH_NOTIFICATION_FEATURE_TOGGLE]: false,
   [WALLET_CONNECT_FEATURE_TOGGLE]: false,
   [NETWORK_SETTINGS_FEATURE_TOGGLE]: false,
+  [NANO_CONTRACT_FEATURE_TOGGLE]: false,
 };
 
 // Project id configured in https://walletconnect.com
@@ -244,3 +246,11 @@ export const HTTP_REQUEST_TIMEOUT = 3000;
  * Any network that is not mainnet or testnet should be a privatenet.
  */
 export const NETWORK_PRIVATENET = 'privatenet';
+
+/**
+ * The following constants are used on a progressive retry mechanism.
+ * @see `src/sagas/helper.js@progressiveRetryRequest`
+ */
+export const MAX_RETRIES = 8;
+export const INITIAL_RETRY_LATENCY = 300; // ms
+export const LATENCY_MULTIPLIER = 30; // multiplier per iteration

src/sagas/helpers.js

@@ -13,6 +13,7 @@ import {
   take,
   call,
   select,
+  delay,
 } from 'redux-saga/effects';
 import { t } from 'ttag';
 import axiosWrapperCreateRequestInstance from '@hathor/wallet-lib/lib/api/axiosWrapper';
@@ -28,6 +29,9 @@ import {
   WALLET_SERVICE_FEATURE_TOGGLE,
   WALLET_SERVICE_REQUEST_TIMEOUT,
   networkSettingsKeyMap,
+  MAX_RETRIES,
+  INITIAL_RETRY_LATENCY,
+  LATENCY_MULTIPLIER,
 } from '../constants';
 import { STORE } from '../store';
 
@@ -275,3 +279,53 @@ export function getNetworkSettings(state) {
   // has precedence, once it indicates a custom network.
   return STORE.getItem(networkSettingsKeyMap.networkSettings) ?? state.networkSettings;
 }
+
+/**
+ * A request abstraction that applies a progressive retry strategy.
+ * One can define how many retries it should make or use the default value.
+ *
+ * @param {Promise<any>} request The async callback function to be executed.
+ * @param {number} maxRetries The max retries allowed, with default value.
+ * Notice this param should be at least 1 to make sense.
+ * @returns {any} A success object from the request.
+ * @throws An error after retries exhausted.
+ *
+ * @example
+ * yield call(progressiveRetryRequest, async () => asyncFn());
+ * // use default maxRetries
+ *
+ * @example
+ * yield call(progressiveRetryRequest, async () => asyncFn(), 3);
+ * // use custom maxRetries equal to 3
+ */
+export function* progressiveRetryRequest(request, maxRetries = MAX_RETRIES) {
+  let lastError = null;
+
+  // eslint-disable-next-line no-plusplus
+  for (let i = 0; i <= maxRetries; i++) {
+    try {
+      // return if success
+      return yield call(request)
+    } catch (error) {
+      lastError = error;
+    }
+
+    // skip delay for last call
+    if (i === maxRetries) {
+      continue;
+    }
+
+    // attempt 0: 300ms
+    // attempt 1: 330ms
+    // attempt 2: 420ms
+    // attempt 3: 570ms
+    // attempt 4: 780ms
+    // attempt 5: 1050ms
+    // attempt 6: 1380ms
+    // attempt 7: 1770ms
+    yield delay(INITIAL_RETRY_LATENCY + LATENCY_MULTIPLIER * (i * i));
+  }
+
+  // throw last error after retries exhausted
+  throw lastError;
+}

src/sagas/tokens.js

@@ -243,7 +243,7 @@ export function* fetchTokenMetadata({ tokenId }) {
   }
 }
 
-export function* fetchTokenData(tokenId) {
+export function* fetchTokenData(tokenId, force = false) {
   const fetchBalanceResponse = yield call(
     dispatchAndWait,
     tokenFetchBalanceRequested(tokenId),
@@ -256,7 +256,7 @@ export function* fetchTokenData(tokenId) {
   );
   const fetchHistoryResponse = yield call(
     dispatchAndWait,
-    tokenFetchHistoryRequested(tokenId),
+    tokenFetchHistoryRequested(tokenId, force),
     specificTypeAndPayload(types.TOKEN_FETCH_HISTORY_SUCCESS, {
       tokenId,
     }),

src/sagas/wallet.js

@@ -73,6 +73,7 @@ import {
   getRegisteredTokens,
   getNetworkSettings,
   getRegisteredTokenUids,
+  progressiveRetryRequest,
 } from './helpers';
 import { setKeychainPin } from '../utils';
 
@@ -287,7 +288,7 @@ export function* startWallet(action) {
 
 /**
  * This saga will load both HTR and DEFAULT_TOKEN (if they are different)
- * and dispatch actions to asynchronously load all registered tokens.
+ * and dispatch actions to asynchronously load all registered tokens forcefully.
  *
  * Will throw an error if the download fails for any token.
  * @returns {string[]} Array of token uid
@@ -298,9 +299,12 @@ export function* loadTokens() {
 
   // fetchTokenData will throw an error if the download failed, we should just
   // let it crash as throwing an error is the default behavior for loadTokens
-  yield call(fetchTokenData, htrUid);
+  yield call(fetchTokenData, htrUid, true);
 
   if (customTokenUid !== htrUid) {
+    // custom tokens doesn't need to be forced to download because its history status
+    // will be marked as invalidated, and history will get requested the next time a user
+    // enters the history screen.
     yield call(fetchTokenData, customTokenUid);
   }
 
@@ -485,9 +489,17 @@ export function* handleTx(action) {
     return acc;
   }, [{}, new Set([])],);
 
-  const txWalletAddresses = yield call(wallet.checkAddressesMine.bind(wallet), [...txAddresses]);
-  const tokensToDownload = [];
+  let txWalletAddresses = null;
+  try {
+    const request = async () => wallet.checkAddressesMine.bind(wallet)([...txAddresses]);
+    txWalletAddresses = yield call(progressiveRetryRequest, request);
+  } catch (error) {
+    // Emmit a fatal error feedback to user and halts tx processing.
+    yield put(onExceptionCaptured(error, true));
+    return;
+  }
 
+  const tokensToDownload = [];
   for (const [tokenUid, addresses] of Object.entries(tokenAddressesMap)) {
     for (const [address] of addresses.entries()) {
       // txWalletAddresses should always have the address we requested, but we should double check
@@ -628,6 +640,7 @@ export function* onWalletReloadData() {
   }
 
   try {
+    // Here we force the download of tokens history
     const registeredTokens = yield call(loadTokens);
 
     const customTokenUid = DEFAULT_TOKEN.uid;