graphql-mocks/wrapper/latency.js

Tools for setting up graphql test resolvers

'use strict';

require('graphql');
var constants = require('../resolver/constants.js');
var createWrapper = require('../resolver/create-wrapper.js');
function getRandomInt(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.round(Math.random() * (max - min) + min);
}
async function wait(ms) {
  return new Promise(resolve => {
    setTimeout(resolve, ms);
  });
}
function latencyWrapper(latency = 0) {
  const finalLatency = Array.isArray(latency) ? getRandomInt(latency[0], latency[1]) : latency;
  return createWrapper.createWrapper('latency-wrapper', constants.WrapperFor.ANY, function (originalResolver) {
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    return async function (...args) {
      await wait(finalLatency);
      return originalResolver(...args);
    };
  });
}
exports.latencyWrapper = latencyWrapper;
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