Rate limit API requests in node.js - node.js

Question

First off, I'm new here, so please...be gentle...I've been teaching myself node.js over the last few months, mostly with the desire to scrape a bunch of data from the FlightAware website API.
I am trying to request from their site a list of flights for aircraft, here is what I have so far.
var aircraft = [array,of,aircraft,tail,numbers]
for (i=0; i < aircraft.length; i++) {
faGetFlight(aircraft[i],function doneLookup(data) {
dbUpdateFlight(collectionName, data)
})
}
This code works, but as soon as there is more than 10 aircraft in the list, it fails, because is sending more than 10 API requests in a minute. What are some easy/straightforward ways to slow this down a little. I would like to send about 50-60 API requests total each time this runs, so I need it spaced over 5-6 minutes. The faGetFlight() function uses the 'request' module. I've tried the request-rate-limit module instead of the request module, but I can't seem to make it work. I don't think the authorization works properly with the request-rate-limiter module. Getting an error about anonymous user. For what it's work, it works with just the request module instead, but I run into the rate limit issues.
Here is my faGetFlight() code.
var RateLimiter = require('request-rate-limiter');
const REQS_PER_MIN = 10; // that's 25 per second
var limiter = new RateLimiter(REQS_PER_MIN);
//API Variables //
var apiUrl = 'url'
var apiEndpoint = 'endpoint'
var apiAuth = 'apikey'
var apiExtData = 0
var apiHowMany = 15 //Number of results to request.
var options = { method: 'GET',
url: apiUrl + apiEndpoint,
qs: { ident: acIdent
},
headers:
{
Authorization: apiAuth }
};
limiter.request(options, function doneDownload(error, response, body) {
if (error) throw new error(error);
callback(body)
});
}
Sorry if this isn't clear...it's my first post!

Answer 1

You can do a naive implementation using functions and a simple setTimeout.
See:
var aircrafts = [array,of,aircraft,tail,numbers];
var REQS_PER_MIN = 10;
var MAX_AMOUNT_REQUESTS = 100;
var timeout = (1 / REQS_PER_MIN) * 60 * 1000;
processAircraft(0);
function processAircraft(index){
if(index >= MAX_AMOUNT_REQUESTS)
return console.log("All done!");
//On start of function, schedule next processing in "timeout" ms
setTimeout(function(){
processAircraft(index+1);
}, timeout);
faGetFlight(aircrafts[index], function doneLookup(data) {
dbUpdateFlight(collectionName, data)
})
}