17 lines
746 B
TypeScript
17 lines
746 B
TypeScript
// Copyright 2017-2021 @polkadot/react-api authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import type { Hash } from '@polkadot/types/interfaces';
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import type { Codec } from '@polkadot/types/types';
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// eslint-disable-next-line @typescript-eslint/no-unused-vars
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type AtQuery <I extends any[]> = (hash: string | Uint8Array, ...params: I) => Promise<Codec>;
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export default async function getHistoric <T extends Codec, I extends any[] = any[]> (atQuery: AtQuery<I>, params: I, hashes: Hash[]): Promise<[Hash, T][]> {
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return Promise
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.all(hashes.map((hash): Promise<T> => atQuery(hash, ...params) as Promise<T>))
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.then((results): [Hash, T][] =>
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results.map((value, index): [Hash, T] => [hashes[index], value])
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);
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}
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