import { JsonConvert } from "json2typescript";
import { Observable } from "rxjs";
import { AjaxError, AjaxResponse } from "rxjs/ajax";
import { KnoraApiConfig } from "../knora-api-config";
import { DataError } from "../models/data-error";
/**
 * HTTP Headers to be sent with the request.
 *
 * Note that Authorization and Content-Type are handled
 * by the method `constructHeader`.
 *
 * @category Internal
 */
export interface IHeaderOptions {
    [index: string]: string;
}
/**
 * @category Internal
 */
export declare class Endpoint {
    protected readonly knoraApiConfig: KnoraApiConfig;
    protected readonly path: string;
    readonly maxRetries = 0;
    readonly delay = 500;
    readonly retryOnErrorStatus: number[];
    /**
     * JsonConvert instance
     */
    jsonConvert: JsonConvert;
    /**
     * The session token
     */
    get jsonWebToken(): string;
    /**
     * The session token
     */
    set jsonWebToken(value: string);
    /**
     * Constructor.
     */
    constructor(knoraApiConfig: KnoraApiConfig, path: string);
    /**
     * Performs a general GET request.
     *
     * @param path the relative URL for the request
     * @param headerOpts additional headers, if any.
     */
    protected httpGet(path?: string, headerOpts?: IHeaderOptions): Observable<AjaxResponse>;
    /**
     * Performs a general POST request.
     *
     * @param path the relative URL for the request
     * @param body the body of the request, if any.
     * @param contentType content content type of body, if any.
     * @param headerOpts additional headers, if any.
     */
    protected httpPost(path?: string, body?: any, contentType?: "json" | "sparql", headerOpts?: IHeaderOptions): Observable<AjaxResponse>;
    /**
     * Performs a general PUT request.
     *
     * @param path the relative URL for the request
     * @param body the body of the request
     * @param contentType content content type of body, if any.
     * @param headerOpts additional headers, if any.
     */
    protected httpPut(path?: string, body?: any, contentType?: "json", headerOpts?: IHeaderOptions): Observable<AjaxResponse>;
    /**
     * Performs a general PATCH request.
     *
     * @param path the relative URL for the request
     * @param body the body of the request
     * @param contentType content content type of body, if any.
     * @param headerOpts additional headers, if any.
     */
    protected httpPatch(path?: string, body?: any, contentType?: "json", headerOpts?: IHeaderOptions): Observable<AjaxResponse>;
    /**
     * Performs a general PUT request.
     *
     * @param path the relative URL for the request.
     * @param headerOpts additional headers, if any.
     */
    protected httpDelete(path?: string, headerOpts?: IHeaderOptions): Observable<AjaxResponse>;
    /**
     * Handles parsing errors.
     * @param error the error class provided by us
     */
    protected handleError(error: AjaxError | DataError): Observable<never>;
    /**
     * Creates a header for a HTTP request.
     * If the client has obtained a token, it is included.
     *
     * @param contentType Sets the content type, if any.
     * @param headerOpts additional headers, if any.
     */
    private constructHeader;
    /**
     * Sets ajax request
     * @param path string
     * @param method 'GET', 'POST', 'PUT', 'PATCH' or 'DELETE'
     * @param [body] any
     * @param [headers] IHeaderOptions
     * @returns AjaxRequest object
     */
    private setAjaxRequest;
}