/// <reference types="node" />
import { RequestOptions } from 'https';
import { URL } from 'url';
import { CentraResponse } from './CentraResponse';
export declare type HTTPMethod = 'GET' | 'POST' | 'PATCH' | 'DELETE' | 'PUT';
export declare class CentraRequest {
    httpMethod: HTTPMethod;
    url: URL;
    data: string | Buffer | null;
    sendDataAs: 'form' | 'json' | 'buffer' | null;
    reqHeaders: {
        [header: string]: string;
    };
    coreOptions: RequestOptions;
    /**
     * Creates an instance of CentraRequest.
     * @param {(string | URL)} url
     * @param {HTTPMethod} [httpMethod='GET']
     * @memberof CentraRequest
     */
    constructor(url: string | URL, httpMethod?: HTTPMethod);
    /**
     *
     *
     * @param {string} key
     * @param {*} value
     * @return {*}  {this}
     * @memberof CentraRequest
     */
    query(key: string, value: any): this;
    /**
     *
     *
     * @param {string} relativePath
     * @return {*}  {this}
     * @memberof CentraRequest
     */
    path(relativePath: string): this;
    /**
     *
     *
     * @param {*} data
     * @param {('json' | 'buffer' | 'form')} [sendAs]
     * @return {*}  {this}
     * @memberof CentraRequest
     */
    body(data: any, sendAs?: 'json' | 'buffer' | 'form'): this;
    /**
     *
     *
     * @param {(string | { [k: string]: string })} header
     * @param {string} [value]
     * @return {*}  {this}
     * @memberof CentraRequest
     */
    header(header: string | {
        [k: string]: string;
    }, value?: string): this;
    /**
     *
     *
     * @param {HTTPMethod} method
     * @return {*}  {this}
     * @memberof CentraRequest
     */
    method(method: HTTPMethod): this;
    /**
     *
     *
     * @param {number} timeout
     * @return {*}  {this}
     * @memberof CentraRequest
     */
    timeout(timeout: number): this;
    /**
     *
     *
     * @template T
     * @param {T} key
     * @param {RequestOptions[T]} value
     * @return {*}  {this}
     * @memberof CentraRequest
     */
    option<T extends keyof RequestOptions>(key: T, value: RequestOptions[T]): this;
    /**
     *
     *
     * @return {*}  {Promise<any>}
     * @memberof CentraRequest
     */
    json<T = any>(): Promise<T>;
    /**
     *
     *
     * @return {*}  {Promise<Buffer>}
     * @memberof CentraRequest
     */
    raw(): Promise<Buffer>;
    /**
     *
     *
     * @return {*}  {Promise<string>}
     * @memberof CentraRequest
     */
    text(): Promise<string>;
    /**
     *
     *
     * @return {*}  {Promise<CentraResponse>}
     * @memberof CentraRequest
     */
    send(): Promise<CentraResponse>;
}