27 lines
644 B
TypeScript
27 lines
644 B
TypeScript
// Copyright 2017-2023 @polkadot/react-query authors & contributors
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
import type { Header } from '@polkadot/types/interfaces';
|
|
|
|
import React from 'react';
|
|
|
|
import { useApi, useCall } from '@polkadot/react-hooks';
|
|
|
|
interface Props {
|
|
className?: string;
|
|
label?: React.ReactNode;
|
|
}
|
|
|
|
function BestHash ({ className = '', label }: Props): React.ReactElement<Props> {
|
|
const { api } = useApi();
|
|
const newHead = useCall<Header>(api.rpc.chain.subscribeNewHeads);
|
|
|
|
return (
|
|
<div className={className}>
|
|
{label || ''}{newHead?.hash.toHex()}
|
|
</div>
|
|
);
|
|
}
|
|
|
|
export default React.memo(BestHash);
|