google-maps-js-api-loader

google-maps-js-api-loader

Description

Lightweight JavaScript library that simplifies the process of adding Google Maps JavaScript API to web application.

Installation

using npm:

npm install --save google-maps-js-api-loader

or yarn:

yarn add google-maps-js-api-loader

or pnpm:

pnpm add google-maps-js-api-loader

---

Example

import { GoogleMapsLoader } from 'google-maps-js-api-loader';

GoogleMapsLoader(
  {
    key: API_KEY,
    // ...some other options
  },
  { async: true }
);

if (GoogleMapsLoader.getStatus() === 'loaded') {
  console.log('google.maps is ready');
}

GoogleMapsLoader.getCompletion('maps').then(({ Map }) =>
  // ...do something with Map
);

const [{ Map }, { AutocompleteService }] = await GoogleMapsLoader.load(
  'maps',
  'places'
);

API

GoogleMapsLoader

function GoogleMapsLoader(
  options: GoogleMapsLoaderOptions,
  scriptOptions: ScriptOptions,
  callbackName?: string
): GoogleMapsLoader;

Sets options for a Google Maps JavaScript API script, options must be set before load is executed

GoogleMapsLoaderOptions	Description
key	Your API key
v?	The version of the Google Maps JavaScript API to use
language?	The language to use. This affects the names of controls, copyright notices, driving directions, and control labels, as well as the responses to service requests. See the list of supported languages
region?	The region code to use. This alters the map's behavior based on a given country or territory
auth_referrer_policy?	Maps JS customers can configure HTTP Referrer Restrictions in the Cloud Console to limit which URLs are allowed to use a particular API Key. By default, these restrictions can be configured to allow only certain paths to use an API Key. If any URL on the same domain or origin may use the API Key, you can set "origin" to limit the amount of data sent when authorizing requests from the Google Maps JavaScript API. This is available starting in version 3.46. When this parameter is specified and HTTP Referrer Restrictions are enabled on Cloud Console, Google Maps JavaScript API will only be able to load if there is an HTTP Referrer Restriction that matches the current website's domain without a path specified

scriptOptions - object with options for script element

callbackName - Google Maps JavaScript API load callback name, "__gmlcb" by default

---

load

static load(): Promise<void>;

static load<L extends GoogleMapsLibrary>(
  library: L
): Promise<GoogleMapsLibraries[L]>;

static load<const A extends GoogleMapsLibrary[]>(
  ...libraries: A
): Promise<{
  [Index in keyof A]: GoogleMapsLibraries[A[Index]];
}>;

Can be called multiple times, only on the first call it starts loading Google Maps JavaScript API script with the given options

Returns a promise that resolves when the Google Maps JavaScript API script and specified libraries have been successfully loaded, or rejects if an error occurs during the loading process.

---

getStatus

type GoogleMapsLoaderStatus = "none" | "loading" | "loaded" | "error";

static getStatus(): GoogleMapsLoaderStatus;

static getStatus(library: GoogleMapsLibrary): GoogleMapsLoaderStatus;

Returns current status of GoogleMapsLoader or provided library loading

---

getCompletion

static getCompletion(): Promise<void>;

static getCompletion<L extends GoogleMapsLibrary>(
  library: L
): Promise<GoogleMapsLibraries[L]>;

static getCompletion<const A extends GoogleMapsLibrary[]>(
  ...libraries: A
): Promise<{
  [Index in keyof A]: GoogleMapsLibraries[A[Index]];
}>;

Returns a promise that resolves when the Google Maps JavaScript API script and specified libraries have been successfully loaded, or rejects if an error occurs during the loading process.

---

get

static get<L extends GoogleMapsLibrary>(
  library: L
): GoogleMapsLibraries[L] | undefined;

Returns the provided library or undefined if it has not been loaded yet.

---

getError

static getError(): Error | undefined;

static getError(
  library: GoogleMapsLibrary
):
  | google.maps.MapsServerError
  | google.maps.MapsNetworkError
  | google.maps.MapsRequestError
  | undefined;

Returns the error for the provided library or undefined

---

License

MIT © Andrii Dubetskyi