/*!
 * Copyright (c) 2020 Ville de Montreal. All rights reserved.
 * Licensed under the MIT license.
 * See LICENSE file in the project root for full license information.
 */
import { AxiosAdapter, AxiosRequestConfig, AxiosInstance, AxiosError } from 'axios';
import { IAxiosPlugin } from './IAxiosPlugin';
import { IAxiosPluginImplementation } from './IAxiosPluginImplementation';
export declare const adapterFlag: unique symbol;
/**
 * The plugin context used while processing a request.
 */
export interface IAxiosPluginContext {
    target: AxiosInstance | AxiosRequestConfig;
    plugins: IAxiosPluginImplementation[];
    oldAdapter: AxiosAdapter;
    newAdapter: AxiosAdapter;
    retries?: number;
}
/**
 * Builds a new plugin from its implementation.
 * @param implementation the plugin callbacks
 * @returns the returned plugin can be bound to an AxiosRequestConfig
 * or a new Axios instance.
 */
export declare function makeAxiosPlugin(implementation: IAxiosPluginImplementation): IAxiosPlugin;
export declare function removeAdapter(config: any): any;
/**
 * lets plugin vote to decide if we can retry the request or not
 * @param ctx the context
 * @param config the config
 * @param error the error to evaluate
 * @returns true if at least one plugin votes for a retry,
 * false if at least one plugin vote against and no plugin votes for.
 * Finally, it will return undefined if no plugin casts a vote.
 */
export declare function pluginErrorPoll(ctx: IAxiosPluginContext, config: AxiosRequestConfig, error: AxiosError): boolean | undefined;