@graphql-tools/executor-graphql-ws/esm/index.js

A set of utils for faster development of GraphQL tools

import { Repeater } from '@repeaterjs/repeater';
import { print } from 'graphql';
import { createClient } from 'graphql-ws';
import WebSocket from 'isomorphic-ws';
export function buildGraphQLWSExecutor(url, webSocketImpl = WebSocket, connectionParams) {
    const graphqlWSClient = createClient({
        url,
        webSocketImpl,
        connectionParams,
        lazy: true,
    });
    return function GraphQLWSExecutor({ document, variables, operationName, extensions, }) {
        const query = print(document);
        return new Repeater(function repeaterExecutor(push, stop) {
            const unsubscribe = graphqlWSClient.subscribe({
                query,
                variables,
                operationName,
                extensions,
            }, {
                next(data) {
                    return push(data);
                },
                error(error) {
                    return stop(error);
                },
                complete() {
                    return stop();
                },
            });
            return stop.finally(unsubscribe);
        });
    };
}