21 lines
709 B
TypeScript
21 lines
709 B
TypeScript
// Copyright 2017-2019 @polkadot/app-democracy authors & contributors
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// This software may be modified and distributed under the terms
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// of the Apache-2.0 license. See the LICENSE file for details.
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import { Hash } from '@polkadot/types/interfaces';
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import { useState, useEffect } from 'react';
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import { useApi, trackStream } from '@polkadot/react-hooks';
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export default function useCounter (): number {
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const { api, isApiReady } = useApi();
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const proposals = trackStream<Hash[]>(isApiReady ? api.query.technicalCommittee.proposals : undefined, []);
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const [counter, setCounter] = useState(0);
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useEffect((): void => {
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setCounter(proposals?.length || 0);
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}, [proposals]);
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return counter;
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}
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