@shopify/react-graphql/build/cjs/links.js

Tools for creating type-safe and asynchronous GraphQL components for React

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var client = require('@apollo/client');

function createSsrExtractableLink() {
  return new SsrExtractableLink();
}
class SsrExtractableLink extends client.ApolloLink {
  constructor(...args) {
    super(...args);
    this.operations = new Set();
  }
  resolveAll(then) {
    if (this.operations.size > 0) {
      return Promise.all([...this.operations]).then(then);
    }
    return then();
  }
  request(operation, nextLink) {
    if (nextLink == null) {
      throw new Error('SsrExtractableLink must not be the last link in the chain.');
    }
    let operationDone;
    const promise = new Promise(resolve => {
      operationDone = () => {
        this.operations.delete(promise);
        resolve();
      };
    });
    this.operations.add(promise);
    const observable = nextLink(operation);
    observable.subscribe({
      complete() {
        operationDone();
      }
    });
    return observable;
  }
}

exports.SsrExtractableLink = SsrExtractableLink;
exports.createSsrExtractableLink = createSsrExtractableLink;