@graphql-tools/executor-apollo-link/esm/index.js

A set of utils for faster development of GraphQL tools

import * as apolloImport from '@apollo/client';
import { fakePromise, isAsyncIterable } from '@graphql-tools/utils';
const apollo = apolloImport?.default ?? apolloImport;
function createApolloRequestHandler(executor) {
    return function ApolloRequestHandler(operation) {
        return new apollo.Observable(observer => {
            fakePromise()
                .then(() => executor({
                document: operation.query,
                variables: operation.variables,
                operationName: operation.operationName,
                extensions: operation.extensions,
                context: operation.getContext(),
            }))
                .then(results => {
                if (isAsyncIterable(results)) {
                    return fakePromise().then(async () => {
                        for await (const result of results) {
                            if (observer.closed) {
                                return;
                            }
                            observer.next(result);
                        }
                        observer.complete();
                    });
                }
                else if (!observer.closed) {
                    observer.next(results);
                    observer.complete();
                }
            })
                .catch(e => {
                if (!observer.closed) {
                    observer.error(e);
                }
            });
        });
    };
}
export class ExecutorLink extends apollo.ApolloLink {
    constructor(executor) {
        super(createApolloRequestHandler(executor));
    }
}