import { DynamicModule, OnModuleDestroy, OnModuleInit } from '@nestjs/common';
import { ApplicationConfig, HttpAdapterHost } from '@nestjs/core';
import { ApolloServerBase } from 'apollo-server-core';
import { GraphQLTypesLoader } from '../graphql-types.loader';
import { GraphQLFactory } from '../graphql.factory';
import { GqlModuleAsyncOptions, GqlModuleOptions } from '../interfaces';
import { GraphQLFederationFactory } from './graphql-federation.factory';
export declare class GraphQLFederationModule implements OnModuleInit, OnModuleDestroy {
    private readonly httpAdapterHost;
    private readonly options;
    private readonly graphqlFederationFactory;
    private readonly graphqlTypesLoader;
    private readonly graphqlFactory;
    private readonly applicationConfig;
    private _apolloServer;
    get apolloServer(): ApolloServerBase;
    constructor(httpAdapterHost: HttpAdapterHost, options: GqlModuleOptions, graphqlFederationFactory: GraphQLFederationFactory, graphqlTypesLoader: GraphQLTypesLoader, graphqlFactory: GraphQLFactory, applicationConfig: ApplicationConfig);
    static forRoot(options?: GqlModuleOptions): DynamicModule;
    static forRootAsync(options: GqlModuleAsyncOptions): DynamicModule;
    private static createAsyncProviders;
    private static createAsyncOptionsProvider;
    onModuleInit(): Promise<void>;
    onModuleDestroy(): Promise<void>;
    private registerGqlServer;
    private registerExpress;
    private registerFastify;
    private getNormalizedPath;
    private runExecutorFactoryIfPresent;
}