README.md

Google Maps JavaScript API Loader

Description

Load the Google Maps JavaScript API script dynamically. This takes inspiration from the google-maps npm package but updates it with ES6, Promises, and TypeScript.

Install

Available via npm as the package @googlemaps/js-api-loader.

npm i @googlemaps/js-api-loader

Alternatively you may add the umd package directly to the html document using the unpkg link.

<script src="https://unpkg.com/@googlemaps/js-api-loader@1.x/dist/index.min.js"></script>

When adding via unpkg, the loader can be accessed at google.maps.plugins.loader.Loader.

TypeScript

TypeScript users need to install the following types package.

npm i -D @types/google.maps

Documentation

The reference documentation can be found at this link. The Google Maps JavaScript API documentation is the authoritative source for the loader options.

Example

import { Loader } from '@googlemaps/js-api-loader';

const loader = new Loader({
  apiKey: "",
  version: "weekly",
  libraries: ["places"]
});

const mapOptions = {
  center: {
    lat: 0,
    lng: 0
  },
  zoom: 4
};

Using a promise for a specific library.

// Promise for a specific library
loader
  .importLibrary('maps')
  .then(({Map}) => {
    new Map(document.getElementById("map"), mapOptions);
  })
  .catch((e) => {
    // do something
  });

Using a promise for when the script has loaded.

// Promise
loader
  .load()
  .then((google) => {
    new google.maps.Map(document.getElementById("map"), mapOptions);
  })
  .catch(e => {
    // do something
  });

Alternatively, if you want to use a callback.

// Callback
loader.loadCallback(e => {
  if (e) {
    console.log(e);
  } else {
    new google.maps.Map(document.getElementById("map"), mapOptions);
  }
});

View the package in action here.

Support

This library is community supported. We're comfortable enough with the stability and features of the library that we want you to build real production applications on it.

If you find a bug, or have a feature suggestion, please log an issue. If you'd like to contribute, please read How to Contribute.