apollo-server-core.js

/*
 * Copyright Elasticsearch B.V. and other contributors where applicable.
 * Licensed under the BSD 2-Clause License; you may not use this file except in
 * compliance with the BSD 2-Clause License.
 */

'use strict';

const semver = require('semver');
const shimmer = require('../shimmer');
const clone = require('shallow-clone-shim');

module.exports = function (apolloServerCore, agent, { version, enabled }) {
  if (!enabled) return apolloServerCore;

  if (!semver.satisfies(version, '^2.0.2 || ^3.0.0')) {
    agent.logger.debug(
      'apollo-server-core version %s not supported - aborting...',
      version,
    );
    return apolloServerCore;
  }

  function wrapRunHttpQuery(orig) {
    return function wrappedRunHttpQuery() {
      var trans = agent._instrumentation.currTransaction();
      if (trans) trans._graphqlRoute = true;
      return orig.apply(this, arguments);
    };
  }

  if (semver.satisfies(version, '<2.14')) {
    shimmer.wrap(apolloServerCore, 'runHttpQuery', wrapRunHttpQuery);
    return apolloServerCore;
  }

  // apollo-server-core >= 2.14 does not allow overriding the exports object
  return clone({}, apolloServerCore, {
    runHttpQuery(descriptor) {
      const getter = descriptor.get;
      if (getter) {
        descriptor.get = function get() {
          return wrapRunHttpQuery(getter());
        };
      }
      return descriptor;
    },
  });
};