22 lines
673 B
TypeScript
22 lines
673 B
TypeScript
// Copyright 2017-2022 @polkadot/api-derive authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { Observable } from 'rxjs';
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import type { DeriveApi, DeriveReferendum } from '../types';
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import { of, switchMap } from 'rxjs';
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import { memo } from '../util';
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export function referendumsActive (instanceId: string, api: DeriveApi): () => Observable<DeriveReferendum[]> {
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return memo(instanceId, (): Observable<DeriveReferendum[]> =>
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api.derive.democracy.referendumIds().pipe(
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switchMap((ids): Observable<DeriveReferendum[]> =>
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ids.length
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? api.derive.democracy.referendumsInfo(ids)
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: of([])
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)
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)
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);
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}
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