import { Construct } from 'constructs';
import type { CachingConfig } from './caching-config';
import type { Code } from './code';
import type { BaseDataSource } from './data-source';
import type { IGraphqlApi } from './graphqlapi-base';
import type { MappingTemplate } from './mapping-template';
import type { FunctionRuntime } from './runtime';
import type { IFunctionConfigurationRef } from '../../interfaces/generated/aws-appsync-interfaces.generated';
/**
 * Enum for enhanced resolver metrics for specified resolvers
 */
export declare enum ResolverMetricsConfig {
    /**
     * Enables enhanced resolver metrics for specified resolvers
     */
    ENABLED = "ENABLED",
    /**
     * Disables enhanced resolver metrics for specified resolvers
     */
    DISABLED = "DISABLED"
}
/**
 * Basic properties for an AppSync resolver
 */
export interface BaseResolverProps {
    /**
     * name of the GraphQL type this resolver is attached to
     */
    readonly typeName: string;
    /**
     * name of the GraphQL field in the given type this resolver is attached to
     */
    readonly fieldName: string;
    /**
     * configuration of the pipeline resolver
     *
     * @default - no pipeline resolver configuration
     * An empty array | undefined sets resolver to be of kind, unit
     */
    readonly pipelineConfig?: IFunctionConfigurationRef[];
    /**
     * The request mapping template for this resolver
     *
     * @default - No mapping template
     */
    readonly requestMappingTemplate?: MappingTemplate;
    /**
     * The response mapping template for this resolver
     *
     * @default - No mapping template
     */
    readonly responseMappingTemplate?: MappingTemplate;
    /**
     * The caching configuration for this resolver
     *
     * @default - No caching configuration
     */
    readonly cachingConfig?: CachingConfig;
    /**
     * The maximum number of elements per batch, when using batch invoke
     *
     * @default - No max batch size
     */
    readonly maxBatchSize?: number;
    /**
     * The functions runtime
     *
     * @default - no function runtime, VTL mapping templates used
     */
    readonly runtime?: FunctionRuntime;
    /**
     * The function code
     *
     * @default - no code is used
     */
    readonly code?: Code;
    /**
     * Whether to enable enhanced metrics
     * Value will be ignored, if `enhancedMetricsConfig.resolverLevelMetricsBehavior` on AppSync GraphqlApi construct is set to `FULL_REQUEST_RESOLVER_METRICS`
     *
     * @default - no metrics configuration
     */
    readonly metricsConfig?: ResolverMetricsConfig;
}
/**
 * Additional property for an AppSync resolver for data source reference
 */
export interface ExtendedResolverProps extends BaseResolverProps {
    /**
     * The data source this resolver is using
     *
     * @default - No datasource
     */
    readonly dataSource?: BaseDataSource;
}
/**
 * Additional property for an AppSync resolver for GraphQL API reference
 */
export interface ResolverProps extends ExtendedResolverProps {
    /**
     * The API this resolver is attached to
     */
    readonly api: IGraphqlApi;
}
/**
 * An AppSync resolver
 */
export declare class Resolver extends Construct {
    /**
     * the ARN of the resolver
     */
    readonly arn: string;
    private resolver;
    constructor(scope: Construct, id: string, props: ResolverProps);
    private createCachingConfig;
}