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

A set of utils for faster development of GraphQL tools

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.buildGraphQLWSExecutor = void 0;
const tslib_1 = require("tslib");
const utils_1 = require("@graphql-tools/utils");
const graphql_1 = require("graphql");
const graphql_ws_1 = require("graphql-ws");
const isomorphic_ws_1 = tslib_1.__importDefault(require("isomorphic-ws"));
function isClient(client) {
    return 'subscribe' in client;
}
function buildGraphQLWSExecutor(clientOptionsOrClient) {
    let graphqlWSClient;
    if (isClient(clientOptionsOrClient)) {
        graphqlWSClient = clientOptionsOrClient;
    }
    else {
        graphqlWSClient = (0, graphql_ws_1.createClient)({
            webSocketImpl: isomorphic_ws_1.default,
            lazy: true,
            ...clientOptionsOrClient,
        });
        if (clientOptionsOrClient.onClient) {
            clientOptionsOrClient.onClient(graphqlWSClient);
        }
    }
    return function GraphQLWSExecutor(executionRequest) {
        const { document, variables, operationName, extensions, operationType = (0, utils_1.getOperationASTFromRequest)(executionRequest).operation, } = executionRequest;
        const query = (0, graphql_1.print)(document);
        const iterableIterator = graphqlWSClient.iterate({
            query,
            variables,
            operationName,
            extensions,
        });
        if (operationType === 'subscription') {
            return iterableIterator;
        }
        return iterableIterator.next().then(({ value }) => value);
    };
}
exports.buildGraphQLWSExecutor = buildGraphQLWSExecutor;