/// <reference types="node" resolution-mode="require"/>
/// <reference types="node" resolution-mode="require"/>
import { Readable } from 'node:stream';
import { HeadersInterface } from './headers.js';
export type Encoding = 'utf-8' | 'ascii' | 'hex';
/**
 * This interface represents an incoming server request.
 */
export declare abstract class Request<T = unknown> {
    constructor(method: string, requestTarget: string, origin: string);
    /**
     * List of HTTP Headers
     */
    headers: HeadersInterface;
    /**
     * path-part of the request.
     *
     * For example /hello/world
     */
    get path(): string;
    /**
     * Sets the request path
     */
    set path(value: string);
    /**
     * HTTP method
     *
     * For example: GET
     */
    method: string;
    /**
     * The request target.
     *
     * This contains the literal value after the HTTP method in the request.
     * So for:
     *
     * GET /foo HTTP/1.1
     *
     * This would contain '/foo'. In many cases this is the same as the 'path'
     * property, but there's 3 other forms in the HTTP specificatio. Here's the
     * different formats:
     *
     * * origin-form    - This is the most common. Example: /foo.
     * * absolute-form  - Clients might sent an entire path. Also used by proxies.
     *                    Example: https://example.org/foo
     * * authority-form - Used by the CONNECT method. Example: example.org:1212
     * * asterisk-form  - Used by the OPTIONS method. Example: *
     *
     * In most cases users will want to use the 'path' property instead. only use
     * this if you know what you're doing.
     *
     * @see {@link https://tools.ietf.org/html/rfc7230#section-5.3}
     */
    requestTarget: string;
    /**
     * Contains a parsed, stored representation of the body. It's up to
     * middlewares to do the actual parsing.
     */
    body: T;
    /**
     * This function returns the request body.
     *
     * If encoding is not specified, this function returns a Buffer. If encoding
     * is specified, it will return a string.
     *
     * You can only call this function once. Most likely you'll want a single
     * middleware that calls this function and then sets `body`.
     */
    abstract rawBody(encoding: Encoding, limit?: string): Promise<string>;
    abstract rawBody(encoding?: undefined, limit?: string): Promise<Buffer>;
    /**
     * getStream returns a Node.js readable stream.
     *
     * A stream can typically only be read once.
     */
    abstract getStream(): Readable;
    /**
     * This object contains parsed query parameters.
     */
    get query(): {
        [s: string]: string;
    };
    /**
     * Returns the value of the Content-Type header, with any additional
     * parameters such as charset= removed.
     *
     * If there was no Content-Type header, an empty string will be returned.
     */
    get type(): string;
    /**
     * accepts is used for negotation the Content-Type with a client.
     *
     * You can pass a content-type, or an array of content-types.
     * The Content-Types you provide are a list of types your application
     * supports.
     *
     * This function will then return the best possible type based on the Accept
     * header.
     *
     * If no compatible types are found, this function returns null.
     */
    accepts(...types: string[]): null | string;
    /**
     * This method will return true or false if a Request or Response has a
     * Content-Type header that matches the argument.
     *
     * For example, if the Content-Type header has the value: application/hal+json,
     * then the arguments will all return true:
     *
     * * application/hal+json
     * * application/json
     * * hal+json
     * * json
     * * application/*
     */
    is(type: string): boolean;
    /**
     * This method parses the contents of the Prefer header, as defined in
     * RFC7240.
     *
     * A prefer header can either stand alone, or contain a value. Examples:
     *
     * Prefer: return=minimal
     * Prefer: wait=20
     * Prefer: respond-async
     *
     * To get either of these values, pass the name of the preference (for
     * example 'return', 'wait', 'respond-async'.
     *
     * This method returns false if the preference did not appear in the header.
     * If it did appear, it will either return its value (minimal, 20) or 'true'
     * if there was no value.
     *
     * The list of supported preferences is taken from the IANA registry:
     * https://www.iana.org/assignments/http-parameters/http-parameters.xhtml#preferences
     *
     * In addition to this list, it also supports the 'transclude' draft:
     * https://github.com/inadarei/draft-prefer-transclude/blob/master/draft.md
     */
    prefer(preference: 'depth-noroot' | 'respond-async' | 'safe' | 'wait'): boolean;
    prefer(preference: 'return'): 'representation' | 'minimal' | false;
    prefer(preference: 'handling'): 'strict' | 'lenient' | false;
    prefer(preference: 'transclude'): string | false;
    /**
     * Returns the absolute url for this request.
     *
     * This may not always be correct, because it's based on a best guess.
     * If you have a reverse proxy in front of your curveball server, you may
     * need to provide a 'origin' argument when constructing the server.
     */
    get absoluteUrl(): string;
    /**
     * Public base URL
     *
     * This will be used to determine the absoluteUrl
     */
    readonly origin: string;
}
export default Request;