batchloader/lib/mappedbatchloader.d.ts

BatchLoader is a utility for data fetching layer to reduce requests via batching written in TypeScript. Inspired by Facebook's DataLoader

import { IBatchLoader } from './types';
export declare class MappedBatchLoader<Key, Value, MappedValue> implements IBatchLoader<Key, MappedValue> {
    protected loader: IBatchLoader<Key, Value>;
    protected mapFn: (value: Value, key: Key) => MappedValue | Promise<MappedValue>;
    constructor(loader: IBatchLoader<Key, Value>, mapFn: (value: Value, key: Key) => MappedValue | Promise<MappedValue>);
    load(key: Key): Promise<MappedValue>;
    loadMany(keys: Key[]): Promise<MappedValue[]>;
    mapLoader<RemappedValue>(mapFn: (value: MappedValue, key: Key) => RemappedValue): MappedBatchLoader<Key, MappedValue, RemappedValue>;
}
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