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