import { Store } from './store.cjs';
/**
 * Two keys that define the identity for the call to a given
 * field resolver with a given context.
 */
export interface Identity {
    /**
     * The return value from `identifyContext`
     */
    readonly contextIdentity: string;
    /**
     * Returns value from `getFieldIdentity`
     */
    readonly fieldIdentity: string;
}
/**
 *
 */
export interface Options {
    readonly windowMs: number;
    readonly max: number;
    readonly callCount?: number;
}
/**
 * GraphQLRateLimitDirectiveArgs: The directive parameters.
 *
 * myField(id: String): Field @rateLimit(message: "Stop!", window: 100000, max: 10, identityArgs: ["id"])
 */
export interface GraphQLRateLimitDirectiveArgs {
    /**
     * Error message used when/if the RateLimit error is thrown
     */
    readonly message?: string;
    /**
     * Window duration in millis.
     */
    readonly window?: string;
    /**
     * Max number of calls within the `window` duration.
     */
    readonly max?: number;
    /**
     * Values to build into the key used to identify the resolve call.
     */
    readonly identityArgs?: readonly string[];
    /**
     * Limit by the length of an input array
     */
    readonly arrayLengthField?: string;
    /**
     * Prevents registering the current request to the store.
     * This can be useful for example when you only wanna rate limit on failed attempts.
     */
    readonly readOnly?: boolean;
    /**
     * Prevents rejected requests (due to limit reach) from being counted.
     */
    readonly uncountRejected?: boolean;
}
/**
 * Args passed to the format error callback.
 */
export interface FormatErrorInput {
    readonly fieldName: string;
    readonly contextIdentity: string;
    readonly max: number;
    readonly window: number;
    readonly fieldIdentity?: string;
}
/**
 * Config object type passed to the directive factory.
 */
export interface GraphQLRateLimitConfig {
    /**
     * Provide a store to hold info on client requests.
     *
     * Defaults to an inmemory store if not provided.
     */
    readonly store?: Store;
    /**
     * Return a string to identify the user or client.
     *
     * Example:
     * 	identifyContext: (context) => context.user.id;
     * 	identifyContext: (context) => context.req.ip;
     */
    readonly identifyContext?: (context: any) => string;
    /**
     * Custom error messages.
     */
    readonly formatError?: (input: FormatErrorInput) => string;
    /**
     * Return an error.
     *
     * Defaults to new RateLimitError.
     */
    readonly createError?: (message: string) => Error;
    readonly enableBatchRequestCache?: boolean;
}