import { SocketOptions } from "./socket";
import { Socket } from "../types/socket";
import { GraphqlStreamClient } from "../types/graphql-stream-client";
export declare const DEFAULT_RESTART_ON_ERROR_DELAY_IN_MS = 2500;
/**
 * The set of options that can be used when constructing a the default
 * [[StreamClient]] instance through the [[createStreamClient]] factory
 * method.
 */
export interface GraphqlStreamClientOptions {
    /**
     * The [[Socket]] instance to use, inferred based on the environment when not provided.
     *
     * @default `undefined` (Inferred based on runtime environment (Node.js/Browser), see [[createSocket]])
     */
    socket?: Socket;
    /**
     * The [[SocketOptions]] to pass when creating the default [[Socket]] instance.
     * This field has no effect if you provide yourself a [[StreamClientOptions.socket]] option.
     *
     * @default `undefined` (See [[SocketOptions]] for actual defaults this generates)
     */
    socketOptions?: SocketOptions;
    /**
     * Determines if all streams should automatically restart when the socket disconnects. The stream
     * will re-connect at their latest marked value (See [[Stream.mark]]) if present or at current
     * block if it was never marked.
     *
     * @default `true`
     */
    autoRestartStreamsOnReconnect?: boolean;
    /**
     * Determines if all streams should automatically restart when the stream receives an `error`
     * message type from the server. The stream will try to restart automatically at their latest
     * marked value (See [[Stream.mark]]) if present or at current block if it was never marked.
     *
     * @default `true`
     */
    autoRestartStreamsOnError?: boolean;
    /**
     * The delay after the the stream receives an error message to wait for before restarting
     * the stream. As no effect if [[GraphqlStreamClientOptions.autoRestartStreamsOnError]] is sets
     * to `false`.
     *
     * @default `2.5s` (See [[DEFAULT_RESTART_ON_ERROR_DELAY_IN_MS]])
     */
    restartOnErrorDelayInMs?: number;
    /**
     * When sets to `true`, when no more streams are active, the socket is
     * automatically disconnected and close. This option should be set to
     * `false` when using `Query` or `Mutation` over WebSocket transport
     * to avoid opening/closing the WebSocket connection for each operation
     * or when multiple short lived `Subscription`s are used.
     *
     * @default `true`
     */
    autoDisconnectSocket?: boolean;
}
/**
 * Create the default [[StreamClient]] concrete implementation.
 *
 * @param wsUrl The url used to reach the dfuse Stream API, should **not** contain the `token` query parameter. Passed as
 * is to created [[Socket]] interface through the [[createSocket]] factory method. This parameter has no effect
 * if [[StreamClientOptions.socket]] options is used.
 * @param options The set of options used to construct the default [[StreamClient]] instance. See
 * [[StreamClientOptions]] for documentation of the options and default values for each of them.
 */
export declare function createGraphqlStreamClient(wsUrl: string, options?: GraphqlStreamClientOptions): GraphqlStreamClient;