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-rw-r--r--packages/instant/src/redux/analytics_middleware.ts59
-rw-r--r--packages/instant/src/redux/store.ts7
2 files changed, 63 insertions, 3 deletions
diff --git a/packages/instant/src/redux/analytics_middleware.ts b/packages/instant/src/redux/analytics_middleware.ts
new file mode 100644
index 000000000..f971dbd33
--- /dev/null
+++ b/packages/instant/src/redux/analytics_middleware.ts
@@ -0,0 +1,59 @@
+import { Web3Wrapper } from '@0x/web3-wrapper';
+import * as _ from 'lodash';
+import { Middleware } from 'redux';
+
+import { ETH_DECIMALS } from '../constants';
+import { Account, AccountState } from '../types';
+import { analytics } from '../util/analytics';
+
+import { Action, ActionTypes } from './actions';
+
+import { State } from './reducer';
+
+const shouldTriggerWalletReady = (prevAccount: Account, curAccount: Account): boolean => {
+ const didJustTurnReady = curAccount.state === AccountState.Ready && prevAccount.state !== AccountState.Ready;
+ if (didJustTurnReady) {
+ return true;
+ }
+
+ if (curAccount.state === AccountState.Ready && prevAccount.state === AccountState.Ready) {
+ // Account was ready, and is now ready again, but address has changed
+ return curAccount.address !== prevAccount.address;
+ }
+
+ return false;
+};
+
+export const analyticsMiddleware: Middleware = store => next => middlewareAction => {
+ const prevState = store.getState() as State;
+ const prevAccount = prevState.providerState.account;
+
+ const nextAction = next(middlewareAction) as Action;
+
+ const curState = store.getState() as State;
+ const curAccount = curState.providerState.account;
+
+ switch (nextAction.type) {
+ case ActionTypes.SET_ACCOUNT_STATE_READY:
+ if (curAccount.state === AccountState.Ready && shouldTriggerWalletReady(prevAccount, curAccount)) {
+ const ethAddress = curAccount.address;
+ analytics.addUserProperties({ ethAddress });
+ analytics.trackWalletReady();
+ }
+ break;
+ case ActionTypes.UPDATE_ACCOUNT_ETH_BALANCE:
+ if (
+ curAccount.state === AccountState.Ready &&
+ curAccount.ethBalanceInWei &&
+ !_.isEqual(curAccount, prevAccount)
+ ) {
+ const ethBalanceInUnitAmount = Web3Wrapper.toUnitAmount(
+ curAccount.ethBalanceInWei,
+ ETH_DECIMALS,
+ ).toString();
+ analytics.addUserProperties({ ethBalanceInUnitAmount });
+ }
+ }
+
+ return nextAction;
+};
diff --git a/packages/instant/src/redux/store.ts b/packages/instant/src/redux/store.ts
index 20710765d..11bba3876 100644
--- a/packages/instant/src/redux/store.ts
+++ b/packages/instant/src/redux/store.ts
@@ -1,7 +1,8 @@
import * as _ from 'lodash';
-import { createStore, Store as ReduxStore } from 'redux';
-import { devToolsEnhancer } from 'redux-devtools-extension/developmentOnly';
+import { applyMiddleware, createStore, Store as ReduxStore } from 'redux';
+import { composeWithDevTools } from 'redux-devtools-extension/developmentOnly';
+import { analyticsMiddleware } from './analytics_middleware';
import { createReducer, State } from './reducer';
export type Store = ReduxStore<State>;
@@ -9,6 +10,6 @@ export type Store = ReduxStore<State>;
export const store = {
create: (initialState: State): Store => {
const reducer = createReducer(initialState);
- return createStore(reducer, initialState, devToolsEnhancer({}));
+ return createStore(reducer, initialState, composeWithDevTools(applyMiddleware(analyticsMiddleware)));
},
};