mongosht.js

// import * as cherryPieApi from "../lib/api";
const api = require("./api");

const MongoClient = require('mongodb').MongoClient;
const assert = require('assert');

// Connection URL
const url = 'mongodb://localhost:27017';
// Database Name
const dbName = 'default';
// Collection Name
const collName = 'Shops2';

callApi = async () => {
  const tmpl = await api.getBaseTemplate();
  console.log('tmpl:', tmpl) 
}
// callApi()

const printjson = (d) => JSON.stringify(d);

// Use connect method to connect to the server
MongoClient.connect(url, 
// { server: {
//       reconnectTries: Number.MAX_VALUE,
//       reconnectInterval: 1000
//   } },
function(err, client) {
  assert.equal(null, err);
  console.log("Connected successfully to server");
try {
  findShops(client);    
} catch (error) {
  console.log('errrorr!!')
  console.log(error.message)
}
finally {
  client.close();
}
});

function findShops(client) {
  const db = client.db(dbName);
  const shopsColl = db.collection(collName);

  shopsColl.find({}).toArray(function (errc, shopsRes) { 
    let s = shopsRes[0];
    shopsRes.forEach(s => {
      let nearShopsColl = shopsColl.find({ "location": {
        "$nearSphere": {
          "$geometry": {
            "type": "Point",
            "coordinates": s.location.coordinates
          }
        }} }); 
        nearShopsColl.toArray(function (errn, nearShopRes) {
          assert.notEqual(undefined, nearShopRes) // BOOM
        })
    })
   });
}