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Текущая директория: /opt/BitGoJS/node_modules/@polkadot/api-derive/accounts

Просмотр файла: indexes.js

import { map, of, startWith } from 'rxjs';
import { memo } from '../util/index.js';
let indicesCache = null;
function queryAccounts(api) {
    return api.query.indices.accounts.entries().pipe(map((entries) => entries.reduce((indexes, [key, idOpt]) => {
        if (idOpt.isSome) {
            indexes[idOpt.unwrap()[0].toString()] = api.registry.createType('AccountIndex', key.args[0]);
        }
        return indexes;
    }, {})));
}
/**
 * @name indexes
 * @returns Returns all the indexes on the system.
 * @description This is an unwieldly query since it loops through
 * all of the enumsets and returns all of the values found. This could be up to 32k depending
 * on the number of active accounts in the system
 * @example
 * <BR>
 *
 * ```javascript
 * api.derive.accounts.indexes((indexes) => {
 *   console.log('All existing AccountIndexes', indexes);
 * });
 * ```
 */
export function indexes(instanceId, api) {
    return memo(instanceId, () => indicesCache
        ? of(indicesCache)
        : (api.query.indices
            ? queryAccounts(api).pipe(startWith({}))
            : of({})).pipe(map((indices) => {
            indicesCache = indices;
            return indices;
        })));
}

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