@discoveryjs/discovery/lib/core/utils/load-data.d.ts

Frontend framework for rapid data (JSON) analysis, shareable serverless reports and dashboards

import type { Progressbar } from './progressbar.js';
import type { Encoding, LoadDataRequest, LoadDataResourceMetadata, LoadDataResourceSource, Dataset, LoadDataState, LoadDataResult, LoadDataBaseOptions, LoadDataFetchOptions, ExtractResourceOptions, LoadDataStateProgress, LoadDataFromPush } from './load-data.types.js';
import { Observer } from '../observer.js';
export type * from './load-data.types.js';
export declare const dataSource: {
    stream: typeof loadDataFromStream;
    event: typeof loadDataFromEvent;
    file: typeof loadDataFromFile;
    url: typeof loadDataFromUrl;
    push: typeof loadDataFromPush;
};
export declare function dataFromStream(stream: ReadableStream<Uint8Array>, extraEncodings: Encoding[] | undefined, totalSize: number | undefined, setStageProgress: (stage: 'receiving' | 'decoding', progress?: LoadDataStateProgress, step?: string) => Promise<boolean>): Promise<{
    data: any;
    compression: false | string;
    encoding: string;
    size: number;
    decodingTime: number;
}>;
export declare function createLoadDataState<T extends Record<string, unknown>>(datasetFactory: (state: Observer<LoadDataState>) => Promise<Dataset>, extra?: T): LoadDataResult & T;
export declare function createDatasetFactoryFromStreamRequest(request: LoadDataRequest): (state: Observer<LoadDataState>) => Promise<Dataset>;
export declare function loadDataFromStream(stream: ReadableStream, options?: LoadDataBaseOptions): LoadDataResult & Record<string, unknown>;
export declare function loadDataFromFile(file: File, options?: LoadDataBaseOptions): LoadDataResult & {
    title: string;
};
export declare function loadDataFromEvent(event: DragEvent | ClipboardEvent | InputEvent, options?: LoadDataBaseOptions): LoadDataResult & {
    title: string;
};
export declare function loadDataFromUrl(url: string, options?: LoadDataFetchOptions): LoadDataResult & {
    title: string;
};
export declare function loadDataFromPush(options?: LoadDataBaseOptions): LoadDataFromPush;
export declare function syncLoaderWithProgressbar({ dataset, state }: LoadDataResult, progressbar: Progressbar): Promise<Dataset>;
export declare function extractResourceMetadata(source: LoadDataResourceSource, options?: ExtractResourceOptions): LoadDataResourceMetadata | undefined;
export declare function convertToBlobIfPossible(source: any): any;
export declare function getReadableStreamFromSource(source: unknown): ReadableStream<Uint8Array<ArrayBufferLike>>;