35 lines
983 B
TypeScript
35 lines
983 B
TypeScript
// Copyright 2017-2021 @polkadot/react-query authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { BlockNumber } from '@polkadot/types/interfaces';
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import React from 'react';
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import { useApi, useCall } from '@polkadot/react-hooks';
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import { formatNumber } from '@polkadot/util';
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interface Props {
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children?: React.ReactNode;
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className?: string;
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isFinalized?: boolean;
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label?: React.ReactNode;
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withPound?: boolean;
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}
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function BestNumber ({ children, className = '', isFinalized, label, withPound }: Props): React.ReactElement<Props> {
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const { api, isApiReady } = useApi();
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const bestNumber = useCall<BlockNumber>(isApiReady && (isFinalized ? api.derive.chain.bestNumberFinalized : api.derive.chain.bestNumber));
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return (
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<div className={className}>
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{label || ''}{withPound && '#'}{
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bestNumber
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? formatNumber(bestNumber)
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: '-'
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}{children}
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</div>
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);
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}
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export default React.memo(BestNumber);
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