Files
api/packages/api-derive/src/staking/stashes.ts
T
Jeremías Díaz 66b1108c5c feat(types): add correct tuple type to storage key (#3054)
* feat(types): add correct tuple type to storage key

* refactor(types): remove unneeded type assertions
2021-01-15 16:06:23 +01:00

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715 B
TypeScript

// Copyright 2017-2021 @polkadot/api-derive authors & contributors
// SPDX-License-Identifier: Apache-2.0
import type { ApiInterfaceRx } from '@polkadot/api/types';
import type { AccountId } from '@polkadot/types/interfaces';
import type { Observable } from '@polkadot/x-rxjs';
import { map } from '@polkadot/x-rxjs/operators';
import { memo } from '../util';
/**
* @description Retrieve the list of all validator stashes
*/
export function stashes (instanceId: string, api: ApiInterfaceRx): () => Observable<AccountId[]> {
return memo(instanceId, (): Observable<AccountId[]> =>
api.query.staking.validators.keys().pipe(
map((keys) => keys.map((key) => key.args[0]).filter((a) => a))
)
);
}