import type { IConfigCatClient } from "../ConfigCatClient.js";
import type { IAutoPollOptions, ILazyLoadingOptions, IManualPollOptions } from "../ConfigCatClientOptions.js";
import { PollingMode } from "../ConfigCatClientOptions.js";
import type { FlagOverrides, IQueryStringProvider, OverrideBehaviour } from "../FlagOverrides.js";
import { ServerSideFetchApiConfigFetcher } from "../shared/FetchApiConfigFetcher.js";
import { CloudflareConfigCache } from "./CloudflareConfigCache.js";
/**
 * Returns an instance of `ConfigCatClient` for the specified SDK Key.
 * @remarks This method returns a single, shared instance per each distinct SDK Key.
 * That is, a new client object is created only when there is none available for the specified SDK Key.
 * Otherwise, the already created instance is returned (in which case the `pollingMode` and `options` arguments are ignored).
 * So, please keep in mind that when you make multiple calls to this method using the same SDK Key, you may end up with multiple references to the same client object.
 * @param sdkKey SDK Key to access the ConfigCat config.
 * @param pollingMode The polling mode to use.
 * @param options Options for the specified polling mode.
 */
export declare function getClient<TMode extends PollingMode | undefined>(sdkKey: string, pollingMode?: TMode, options?: OptionsForPollingMode<TMode>): IConfigCatClient;
export { createConsoleLogger, createFlagOverridesFromMap, disposeAllClients } from "../index.pubternals.core.js";
interface ICloudflareRequest {
    url: string;
}
/**
 * Creates an instance of `FlagOverrides` that uses the query string parameters
 * of the specified request as data source.
 * @param behaviour The override behaviour.
 * Specifies whether the local values should override the remote values,
 * or local values should only be used when a remote value doesn't exist,
 * or the local values should be used only.
 * @param request The request.
 * @param paramPrefix The parameter name prefix used to indicate which query string parameters
 * specify feature flag override values. Parameters whose name doesn't start with the
 * prefix will be ignored. Defaults to `cc-`.
 */
export declare function createFlagOverridesFromQueryParams(behaviour: OverrideBehaviour, request: ICloudflareRequest, paramPrefix?: string): FlagOverrides;
/**
 * Creates an instance of `FlagOverrides` that uses query string parameters as data source.
 * @param behaviour The override behaviour.
 * Specifies whether the local values should override the remote values,
 * or local values should only be used when a remote value doesn't exist,
 * or the local values should be used only.
 * @param watchChanges If set to `true`, the query string will be tracked for changes.
 * @param paramPrefix The parameter name prefix used to indicate which query string parameters
 * specify feature flag override values. Parameters whose name doesn't start with the
 * prefix will be ignored. Defaults to `cc-`.
 * @param queryStringProvider The provider object used to obtain the query string.
 * Defaults to a provider that returns the value of `globalThis.location.search`.
 */
export declare function createFlagOverridesFromQueryParams(behaviour: OverrideBehaviour, watchChanges?: boolean, paramPrefix?: string, queryStringProvider?: IQueryStringProvider): FlagOverrides;
export type { IQueryStringProvider } from "../index.pubternals.core.js";
/** Options used to configure the ConfigCat SDK in the case of Auto Polling mode. */
export interface IJSAutoPollOptions extends IAutoPollOptions {
}
/** Options used to configure the ConfigCat SDK in the case of Lazy Loading mode. */
export interface IJSLazyLoadingOptions extends ILazyLoadingOptions {
}
/** Options used to configure the ConfigCat SDK in the case of Manual Polling mode. */
export interface IJSManualPollOptions extends IManualPollOptions {
}
export type OptionsForPollingMode<TMode extends PollingMode | undefined> = TMode extends PollingMode.AutoPoll ? IJSAutoPollOptions : TMode extends PollingMode.ManualPoll ? IJSManualPollOptions : TMode extends PollingMode.LazyLoad ? IJSLazyLoadingOptions : TMode extends undefined ? IJSAutoPollOptions : never;
export { CloudflareConfigCache };
export { ServerSideFetchApiConfigFetcher };
export * from "../index.js";