Jaco
9fe2798b70
* Use .js imports in src * Adjust * Fix imports * Bump dev * Adjust with .js imports for typegen * Adjust * Adjust * Remove target override
36 lines
1.1 KiB
TypeScript
36 lines
1.1 KiB
TypeScript
// Copyright 2017-2023 @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 { AccountId, AccountIndex } from '@polkadot/types/interfaces';
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import type { DeriveApi } from '../types.js';
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import { map, of } from 'rxjs';
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import { memo } from '../util/index.js';
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/**
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* @name indexToId
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* @param {( AccountIndex | string )} accountIndex - An accounts index in different formats.
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* @returns Returns the corresponding AccountId.
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* @example
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* <BR>
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*
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* ```javascript
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* api.derive.accounts.indexToId('F7Hs', (accountId) => {
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* console.log(`The AccountId of F7Hs is ${accountId}`);
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* });
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* ```
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*/
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export function indexToId (instanceId: string, api: DeriveApi): (accountIndex: AccountIndex | string) => Observable<AccountId | undefined> {
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return memo(instanceId, (accountIndex: AccountIndex | string): Observable<AccountId | undefined> =>
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api.query.indices
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? api.query.indices.accounts(accountIndex).pipe(
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map((optResult): AccountId | undefined =>
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optResult.unwrapOr([])[0]
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)
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)
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: of(undefined)
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);
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}
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