Add a Google Map to a Web Page

You can add a Google map to a web page using HTML, CSS, and JavaScript code. This page shows how to add a map to a web page in two ways: by using the gmp-map custom HTML element, and by using a div element.

Overview

To load a map, your web page must do the following things:

  • Load the Maps JavaScript API using a bootstrap loader. This is where your API key is passed, and can be added to either the HTML or JavaScript source files.
  • Add the map to the HTML page, and add the needed CSS styles.
  • Load the maps library and initialize the map.

Add a map using a gmp-map element

The gmp-map element is a custom HTML element created using web components. To add a map to a web page using a gmp-map element, take the following steps.

  1. On the HTML page, add a script element containing the bootstrap configured with your API key and any other options. In the following example bootstrap, the callback parameter has been omitted, as it is not needed.

    <script     src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&loading=async&libraries=maps&v=beta" defer> </script>

  2. On the HTML page, add a gmp-map element. Specify latitude and longitude coordinates for center, and a zoom value for zoom. In this example the height style attribute is also specified.

    <gmp-map   center="37.4220656,-122.0840897"   zoom="10"   map-id="DEMO_MAP_ID"   style="height: 400px" ></gmp-map>
    index.html

Complete example code

<html>   <head>     <title>Add a Map using HTML</title>      <link rel="stylesheet" type="text/css" href="./style.css" />     <script type="module" src="./index.js"></script>   </head>   <body>     <gmp-map       center="37.4220656,-122.0840897"       zoom="10"       map-id="DEMO_MAP_ID"       style="height: 400px"     ></gmp-map>      <!--        The `defer` attribute causes the script to execute after the full HTML       document has been parsed. For non-blocking uses, avoiding race conditions,       and consistent behavior across browsers, consider loading using Promises. See       https://developers.google.com/maps/documentation/javascript/load-maps-js-api       for more information.       -->     <script       src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&libraries=maps&v=beta"       defer     ></script>   </body> </html>
index.html

Add a map using a div element and JavaScript

To add a map to a web page using a div element, take the following steps.

  1. On the HTML page, add a script element containing the bootstrap loader configured with your API key and any other options. Alternatively, add the bootstrap loader code directly to a TypeScript or JavaScript file, minus the script tags.

    <script>   (g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})({     key: "YOUR_API_KEY",     v: "weekly",     // Use the 'v' parameter to indicate the version to use (weekly, beta, alpha, etc.).     // Add other bootstrap parameters as needed, using camel case.   }); </script>

  2. On the HTML page, add a div element to contain the map.

    <div id="map"></div>

  3. In the CSS, set the map height to 100%.

    #map {   height: 100%; }

  4. In the JavaScript file, create a function to load the maps library and initialize the map. Specify latitude and longitude coordinates for center, and the zoom level to use for zoom.

let map;  async function initMap() {   const { Map } = await google.maps.importLibrary("maps");    map = new Map(document.getElementById("map"), {     center: { lat: -34.397, lng: 150.644 },     zoom: 8,   }); }  initMap();
index.js

Complete example code

TypeScript

let map: google.maps.Map; async function initMap(): Promise<void> {   const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;   map = new Map(document.getElementById("map") as HTMLElement, {     center: { lat: -34.397, lng: 150.644 },     zoom: 8,   }); }  initMap();
index.ts

JavaScript

let map;  async function initMap() {   const { Map } = await google.maps.importLibrary("maps");    map = new Map(document.getElementById("map"), {     center: { lat: -34.397, lng: 150.644 },     zoom: 8,   }); }  initMap();
index.js

CSS

/*   * Always set the map height explicitly to define the size of the div element  * that contains the map.   */ #map {   height: 100%; }  /*   * Optional: Makes the sample page fill the window.   */ html, body {   height: 100%;   margin: 0;   padding: 0; } 
style.css

HTML

<html>   <head>     <title>Simple Map</title>      <link rel="stylesheet" type="text/css" href="./style.css" />     <script type="module" src="./index.js"></script>   </head>   <body>     <div id="map"></div>      <!-- prettier-ignore -->     <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})         ({key: "AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg", v: "weekly"});</script>   </body> </html>
index.html

Try Sample