vega-frontend-monorepo/apps/trading/components/app-loader/app-loader.tsx

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import type { InMemoryCacheConfig } from '@apollo/client';
import {
NetworkLoader,
NodeGuard,
useEnvironment,
} from '@vegaprotocol/environment';
import { t } from '@vegaprotocol/react-helpers';
import { MaintenancePage } from '@vegaprotocol/ui-toolkit';
import { VegaWalletProvider } from '@vegaprotocol/wallet';
import dynamic from 'next/dynamic';
import type { ReactNode } from 'react';
import { AppFailure } from './app-failure';
import { Web3Provider } from './web3-provider';
const DynamicLoader = dynamic(() => import('../preloader/preloader'), {
loading: () => <>Loading...</>,
});
export const AppLoader = ({ children }: { children: ReactNode }) => {
const { error, VEGA_URL, MAINTENANCE_PAGE } = useEnvironment((store) => ({
error: store.error,
VEGA_URL: store.VEGA_URL,
MAINTENANCE_PAGE: store.MAINTENANCE_PAGE,
}));
if (MAINTENANCE_PAGE) {
return <MaintenancePage />;
}
return (
<NetworkLoader
cache={cacheConfig}
skeleton={<DynamicLoader />}
failure={
<AppFailure title={t('Could not initialize app')} error={error} />
}
>
<NodeGuard
skeleton={<DynamicLoader />}
failure={<AppFailure title={t(`Node: ${VEGA_URL} is unsuitable`)} />}
>
<Web3Provider>
<VegaWalletProvider>{children}</VegaWalletProvider>
</Web3Provider>
</NodeGuard>
</NetworkLoader>
);
};
const cacheConfig: InMemoryCacheConfig = {
typePolicies: {
Account: {
keyFields: false,
fields: {
balanceFormatted: {},
},
},
Instrument: {
keyFields: false,
},
TradableInstrument: {
keyFields: ['instrument'],
},
Product: {
keyFields: ['settlementAsset', ['id']],
},
MarketData: {
keyFields: ['market', ['id']],
},
Node: {
keyFields: false,
},
Withdrawal: {
fields: {
pendingOnForeignChain: {
read: (isPending = false) => isPending,
},
},
},
ERC20: {
keyFields: ['contractAddress'],
},
PositionUpdate: {
keyFields: false,
},
AccountUpdate: {
keyFields: false,
},
Party: {
keyFields: false,
},
Fees: {
keyFields: false,
},
},
};