@yeskiy/federation-with-subscriptions/dist/create-gateway.d.ts

Apollo Federation with subscriptions support

/// <reference types="node" />
import { ExpressContext } from "apollo-server-express";
import { ExecutionArgs } from "graphql";
import { Context, SubscribeMessage } from "graphql-ws";
import http from "http";
import WebSocket from "ws";
declare type Headers = Record<string, string | undefined | unknown>;
declare type ContextParams = {
    req: any;
    res: any;
};
declare type GatewayContext<TContext> = {
    context?: (contextParams: ContextParams) => TContext;
};
declare type GatewayParameters = {
    port?: number;
    host?: string;
    path?: string;
    microservices: {
        url: string;
    }[];
    onWebsocketMessage?: (message: WebSocket.RawData, context: any) => void;
    onWebsocketClose?: (context: any) => void;
    buildHttpHeaders?: ({ req, res, }: {
        req: ExpressContext["req"] | undefined;
        res: ExpressContext["res"] | undefined;
    }) => Promise<Headers> | Headers;
    buildSubscriptionHeaders?: (context: Context, message: SubscribeMessage, args: ExecutionArgs) => Promise<Headers> | Headers;
} & GatewayContext<any>;
export declare const createGateway: (params: GatewayParameters) => Promise<{
    app: import("express-serve-static-core").Express;
    server: http.Server;
    url: string;
    executableSchema: import("graphql").GraphQLSchema;
    sdl: (options?: {
        withDirectives?: boolean;
    }) => string;
}>;
export {};