/**
* @license
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/// <reference types="node" />
import { Connection, ConnectionType, ErrorCode } from '../../implementation/connection';
import nodeFetch, { Headers } from 'node-fetch';
/**
* Network layer that works in Node.
*
* This network implementation should not be used in browsers as it does not
* support progress updates.
*/
declare abstract class FetchConnection<T extends ConnectionType> implements Connection<T> {
protected errorCode_: ErrorCode;
protected statusCode_: number | undefined;
protected body_: ArrayBuffer | undefined;
protected errorText_: string;
protected headers_: Headers | undefined;
protected sent_: boolean;
protected fetch_: typeof nodeFetch;
constructor();
send(url: string, method: string, body?: ArrayBufferView | Blob | string, headers?: Record<string, string>): Promise<void>;
getErrorCode(): ErrorCode;
getStatus(): number;
abstract getResponse(): T;
getErrorText(): string;
abort(): void;
getResponseHeader(header: string): string | null;
addUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
removeUploadProgressListener(listener: (p1: ProgressEvent) => void): void;
}
export declare class FetchTextConnection extends FetchConnection<string> {
getResponse(): string;
}
export declare function newTextConnection(): Connection<string>;
export declare class FetchBytesConnection extends FetchConnection<ArrayBuffer> {
getResponse(): ArrayBuffer;
}
export declare function newBytesConnection(): Connection<ArrayBuffer>;
export declare class FetchStreamConnection extends FetchConnection<NodeJS.ReadableStream> {
private stream_;
send(url: string, method: string, body?: ArrayBufferView | Blob | string, headers?: Record<string, string>): Promise<void>;
getResponse(): NodeJS.ReadableStream;
}
export declare function newStreamConnection(): Connection<NodeJS.ReadableStream>;
export declare function newBlobConnection(): Connection<Blob>;
export declare function injectTestConnection(factory: (() => Connection<string>) | null): void;
export {};