feat: call update with null data from useDataProvider hook on variables change (#2689)

apps/trading/client-pages/market/index.ts

@@ -1,3 +1,3 @@
-import { Market } from './market';
+import { MarketPage } from './market';
 
-export default Market;
+export default MarketPage;

apps/trading/client-pages/market/market.tsx

@@ -5,6 +5,7 @@ import {
   t,
   titlefy,
   useDataProvider,
+  useThrottledDataProvider,
 } from '@vegaprotocol/react-helpers';
 import { AsyncRenderer, Splash } from '@vegaprotocol/ui-toolkit';
 import type {
@@ -31,7 +32,47 @@ export interface SingleMarketData extends SingleMarketFieldsFragment {
   data: MarketData;
 }
 
-export const Market = () => {
+const TitleUpdater = ({
+  marketId,
+  marketName,
+  decimalPlaces,
+}: {
+  marketId?: string;
+  marketName?: string;
+  decimalPlaces?: number;
+}) => {
+  const pageTitle = usePageTitleStore((store) => store.pageTitle);
+  const updateTitle = usePageTitleStore((store) => store.updateTitle);
+  const { data: marketData } = useThrottledDataProvider<
+    MarketData,
+    MarketDataUpdateFieldsFragment
+  >(
+    {
+      dataProvider: marketDataProvider,
+      variables: useMemo(() => ({ marketId }), [marketId]),
+      skip: !marketId,
+    },
+    1000
+  );
+  useEffect(() => {
+    const marketPrice = calculatePrice(marketData?.markPrice, decimalPlaces);
+    if (marketName) {
+      const newPageTitle = titlefy([marketName, marketPrice]);
+      if (pageTitle !== newPageTitle) {
+        updateTitle(newPageTitle);
+      }
+    }
+  }, [
+    decimalPlaces,
+    marketName,
+    marketData?.markPrice,
+    pageTitle,
+    updateTitle,
+  ]);
+  return null;
+};
+
+export const MarketPage = () => {
   const { marketId } = useParams();
   const navigate = useNavigate();
 
@@ -39,9 +80,6 @@ export const Market = () => {
   const update = useGlobalStore((store) => store.update);
   const lastMarketId = useGlobalStore((store) => store.marketId);
 
-  const pageTitle = usePageTitleStore((store) => store.pageTitle);
-  const updateTitle = usePageTitleStore((store) => store.updateTitle);
-
   const onSelect = useCallback(
     (id: string) => {
       if (id && id !== marketId) {
@@ -51,56 +89,20 @@ export const Market = () => {
     [marketId, navigate]
   );
 
-  const variables = useMemo(
-    () => ({
-      marketId: marketId || '',
-    }),
-    [marketId]
-  );
-
-  const updateMarketId = useCallback(
-    ({ data }: { data: { id?: string } | null }) => {
-      if (data?.id && data.id !== lastMarketId) {
-        update({ marketId: data.id });
-      }
-      return true;
-    },
-    [update, lastMarketId]
-  );
   const { data, error, loading } = useDataProvider<
     SingleMarketFieldsFragment,
     never
   >({
     dataProvider: marketProvider,
-    variables,
+    variables: useMemo(() => ({ marketId: marketId || '' }), [marketId]),
-    update: updateMarketId,
     skip: !marketId,
   });
 
-  const marketName = data?.tradableInstrument.instrument.name;
+  useEffect(() => {
-  const updateProvider = useCallback(
+    if (data?.id && data.id !== lastMarketId) {
-    ({ data: marketData }: { data: MarketData | null }) => {
+      update({ marketId: data.id });
-      const marketPrice = calculatePrice(
+    }
-        marketData?.markPrice,
+  }, [update, lastMarketId, data?.id]);
-        data?.decimalPlaces
-      );
-      if (marketName) {
-        const newPageTitle = titlefy([marketName, marketPrice]);
-        if (pageTitle !== newPageTitle) {
-          updateTitle(newPageTitle);
-        }
-      }
-      return true;
-    },
-    [updateTitle, pageTitle, marketName, data?.decimalPlaces]
-  );
-
-  useDataProvider<MarketData, MarketDataUpdateFieldsFragment>({
-    dataProvider: marketDataProvider,
-    update: updateProvider,
-    variables,
-    skip: !marketId || !data,
-  });
 
   const tradeView = useMemo(() => {
     if (w > 960) {
@@ -123,6 +125,11 @@ export const Market = () => {
       data={data || undefined}
       noDataCondition={(data) => false}
     >
+      <TitleUpdater
+        marketId={data?.id}
+        marketName={data?.tradableInstrument.instrument.name}
+        decimalPlaces={data?.decimalPlaces}
+      />
       {tradeView}
     </AsyncRenderer>
   );

libs/accounts/src/lib/use-account-balance.tsx

@@ -17,15 +17,11 @@ export const useAccountBalance = (assetId?: string) => {
       const account = assetId
         ? getSettlementAccount({ accounts: data, assetId })
         : undefined;
-      if (accountBalance !== account?.balance) {
+      setAccountBalance(account?.balance || '');
-        setAccountBalance(account?.balance || '');
+      setAccountDecimals(account?.asset.decimals || null);
-      }
-      if (accountDecimals !== account?.asset.decimals) {
-        setAccountDecimals(account?.asset.decimals || null);
-      }
       return true;
     },
-    [accountBalance, accountDecimals, assetId]
+    [assetId]
   );
 
   useDataProvider({

libs/react-helpers/src/hooks/use-data-provider.spec.ts

@@ -161,6 +161,13 @@ describe('useDataProvider hook', () => {
     });
     expect(update).toBeCalledTimes(1);
 
+    // setting same variables, with different object reference
+    await act(async () => {
+      rerender({ dataProvider, update, variables: { ...variables } });
+    });
+    expect(unsubscribe).toBeCalledTimes(0);
+    expect(dataProvider).toBeCalledTimes(1);
+
     // changing variables after date was loaded
     await act(async () => {
       rerender({ dataProvider, update, variables: { partyId: '0x321' } });
@@ -173,7 +180,7 @@ describe('useDataProvider hook', () => {
     await act(async () => {
       callback({ ...updateCallbackPayload });
     });
-    expect(update).toBeCalledTimes(2);
+    expect(update).toBeCalledTimes(3);
 
     // changing variables, apollo query will return error
     await act(async () => {
@@ -193,7 +200,7 @@ describe('useDataProvider hook', () => {
         pageInfo: null,
       });
     });
-    expect(update).toBeCalledTimes(3);
+    expect(update).toBeCalledTimes(5);
   });
 
   it('do not create data provider instance when skip is true', async () => {

libs/react-helpers/src/hooks/use-data-provider.ts

@@ -1,6 +1,8 @@
 import { useState, useEffect, useRef, useCallback } from 'react';
 import throttle from 'lodash/throttle';
+import isEqual from 'lodash/isEqual';
 import { useApolloClient } from '@apollo/client';
+import { usePrevious } from './use-previous';
 import type { OperationVariables } from '@apollo/client';
 import type {
   Subscribe,
@@ -52,9 +54,9 @@ export const useDataProvider = <
   dataProvider,
   update,
   insert,
-  variables,
   skipUpdates,
   skip,
+  ...props
 }: useDataProviderParams<Data, Delta, Variables>) => {
   const client = useApolloClient();
   const [data, setData] = useState<Data | null>(null);
@@ -65,6 +67,13 @@ export const useDataProvider = <
   const reloadRef = useRef<((force?: boolean) => void) | undefined>(undefined);
   const loadRef = useRef<Load<Data> | undefined>(undefined);
   const initialized = useRef<boolean>(false);
+  const prevVariables = usePrevious(props.variables);
+  const [variables, setVariables] = useState(props.variables);
+  useEffect(() => {
+    if (!isEqual(prevVariables, props.variables)) {
+      setVariables(props.variables);
+    }
+  }, [props.variables, prevVariables]);
   const flush = useCallback(() => {
     if (flushRef.current) {
       flushRef.current();
@@ -125,6 +134,9 @@ export const useDataProvider = <
     setData(null);
     setError(undefined);
     setTotalCount(undefined);
+    if (initialized.current && update) {
+      update({ data: null });
+    }
     initialized.current = false;
     if (skip) {
       setLoading(false);