API Requests with Rate Limiting in JavaScript

by Geoapify

HTML

<button id="button">Geocode with RPS</button>

JavaScript

// The API Key provided is restricted to JSFiddle website
// Get your own API Key on https://myprojects.geoapify.com
const myAPIKey = "6dc7fb95a3b246cfa0f3bcef5ce9ed9a";

// number of retries, if it is 2, then in total we will see 3 requests (1 initial + 2 retries)
const maxRetries = 2;
const retryDelayInMillis = 500;
const rpsLimit = 5;
const delayBetweenBatchesInMillis = 1000;
const addresses = [
  "North Oak Street, Bethalto, IL 62010, USA",
  "2809 College Avenue, Alton, IL 62002, USA",
  "1 Lock and Dam Way, Alton, IL 62002, USA",
  "40 West Ferguson Avenue, Wood River, IL 62095, USA",
  "Illinois Route 111, Roxana, IL 62084, USA",
  "715 North Main Street, Edwardsville, IL 62025, USA",
  "620 Saint Louis Street, Edwardsville, IL 62025, USA",
  "409 South Buchanan Street, Edwardsville, IL 62025, USA",
  "722 Holyoake Road, Edwardsville, IL 62025, USA",
  "1 Lewis and Clark Trail, Hartford, IL 62048, USA",
  "Woodcrest Lane, Hazelwood, MO 63042, USA",
  "14301 Creve Coeur Airport Road, Maryland Heights, MO 63146, USA",
  "Plum Street, Collinsville, IL 62234, USA",
  "4600 Labadie Avenue, St. Louis, MO 63115, USA",
  "30 Ramey Street, Collinsville, IL 62234, USA",
  "2505 Saint Louis Avenue, St. Louis, MO 63106, USA",
  "2223 Saint Louis Avenue, St. Louis, MO 63106, USA",
  "Westmoreland Avenue, Clayton, MO 63105, USA",
  "1 Forsyth Boulevard, St. Louis, MO 63130, USA",
  "5700 Lindell Boulevard, St. Louis, MO 63018, USA",
  "650 Maryville University Drive, Town and Country, MO 63141, USA",
  "4652 Maryland Avenue, St. Louis, MO 63108, USA",
  "478 Covenat Lane, Creve Coeur, MO 63141, USA",
  "3750 Washington Boulevard, St. Louis, MO 63108, USA",
  "1 Fine Arts Drive, St. Louis, MO 63110, USA",
  "2716 Doctor Martin Luther King Drive, St. Louis, MO 63106, USA",
  "3441 Olive Street, St. Louis, MO 63103, USA",
  "2660 Delmar Boulevard, St. Louis, MO 63103, USA",
  "3415 Olive Street, St. Louis, MO 63103, USA",
  "750 North 16th Street, St. Louis, MO 63103,...