googlemaps-samples · willum070 · Jan 7, 2026 · Dec 16, 2025 · Dec 16, 2025 · Jan 6, 2026
diff --git a/samples/geocoding-reverse/README.md b/samples/geocoding-reverse/README.md
@@ -0,0 +1,41 @@
+# Google Maps JavaScript Sample
+
+## geocoding-reverse
+
+The geocoding-reverse sample demonstrates reverse geocoding coordinates to addresses. 
+
+## Setup
+
+### Before starting run:
+
+`npm i`
+
+### Run an example on a local web server
+
+`cd samples/geocoding-reverse`
+`npm start`
+
+### Build an individual example
+
+`cd samples/geocoding-reverse`
+`npm run build`
+
+From 'samples':
+
+`npm run build --workspace=geocoding-reverse/`
+
+### Build all of the examples.
+
+From 'samples':
+
+`npm run build-all`
+
+### Run lint to check for problems
+
+`cd samples/geocoding-reverse`
+`npx eslint index.ts` 
+
+## Feedback
+
+For feedback related to this sample, please open a new issue on
+[GitHub](https://github.com/googlemaps-samples/js-api-samples/issues).
diff --git a/samples/geocoding-reverse/index.html b/samples/geocoding-reverse/index.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<!--
+@license
+Copyright 2025 Google LLC. All Rights Reserved.
+SPDX-License-Identifier: Apache-2.0
+-->
+<!-- [START maps_geocoding_reverse] -->
+<html>
+    <head>
+        <title>Reverse Geocoding</title>
+
+        <link rel="stylesheet" type="text/css" href="./style.css" />
+        <script type="module" src="./index.js"></script>
+        <!-- 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: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "weekly"});</script>
+    </head>
+    <body>
+        <gmp-map center="0.714224, -73.961452" zoom="8" map-id="DEMO_MAP_ID">
+            <div id="floating-panel" slot="control-block-start-inline-center">
+                <p>
+                    Click the map to reverse geocode, or paste in your own
+                    coordinates.
+                </p>
+                <input
+                    id="latlng"
+                    type="text"
+                    value="40.714224, -73.961452" /><br />
+                <input id="submit" type="button" value="Reverse Geocode" />
+            </div>
+        </gmp-map>
+    </body>
+</html>
+<!-- [END maps_geocoding_reverse] -->
diff --git a/samples/geocoding-reverse/index.ts b/samples/geocoding-reverse/index.ts
@@ -0,0 +1,96 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+// [START maps_geocoding_reverse]
+//let innerMap;
+let marker;
+
+async function initMap() {
+    //  Request the needed libraries.
+    const [{ Map, InfoWindow }, { Geocoder }, { AdvancedMarkerElement }] =
+        await Promise.all([
+            google.maps.importLibrary(
+                'maps'
+            ) as Promise<google.maps.MapsLibrary>,
+            google.maps.importLibrary(
+                'geocoding'
+            ) as Promise<google.maps.GeocodingLibrary>,
+            google.maps.importLibrary(
+                'marker'
+            ) as Promise<google.maps.MarkerLibrary>,
+        ]);
+
+    // Get the gmp-map element.
+    const mapElement = document.querySelector(
+        'gmp-map'
+    ) as google.maps.MapElement;
+
+    // Get the inner map.
+    let innerMap = mapElement.innerMap;
+
+    // Get the latlng input box.
+    const latLngQuery = document.getElementById('latlng') as HTMLInputElement;
+
+    // Get the submit button.
+    const submitButton = document.getElementById('submit') as HTMLElement;
+
+    // Set the cursor to crosshair.
+    innerMap.setOptions({
+        draggableCursor: 'crosshair',
+        zoom: 13,
+    });
+
+    // Create a marker for re-use.
+    marker = new AdvancedMarkerElement({
+        map: innerMap,
+    });
+
+    const geocoder = new Geocoder();
+    const infowindow = new InfoWindow();
+
+    // Add a click event listener to the submit button.
+    submitButton.addEventListener('click', () => {
+        geocodeLatLng(geocoder, innerMap, infowindow);
+    });
+
+    // Add a click event listener to the map.
+    innerMap.addListener('click', (event) => {
+        latLngQuery.value = `${event.latLng.lat()}, ${event.latLng.lng()}`;
+        geocodeLatLng(geocoder, innerMap, infowindow);
+    });
+
+    // Make an initial request upon loading.
+    geocodeLatLng(geocoder, innerMap, infowindow);
+}
+
+async function geocodeLatLng(
+    geocoder: google.maps.Geocoder,
+    map: google.maps.Map,
+    infowindow: google.maps.InfoWindow
+) {
+    const input = (document.getElementById('latlng') as HTMLInputElement).value;
+    const latlngStr = input.split(',', 2);
+    const latlng = {
+        lat: parseFloat(latlngStr[0]),
+        lng: parseFloat(latlngStr[1]),
+    };
+
+    geocoder
+        .geocode({ location: latlng })
+        .then((response) => {
+            if (response.results[0]) {
+                marker.position = latlng;
+                map.setCenter(latlng);
+                infowindow.setContent(response.results[0].formatted_address);
+                infowindow.open(map, marker);
+            } else {
+                window.alert('No results found');
+            }
+        })
+        .catch((e) => window.alert('Geocoder failed due to: ' + e));
+}
+
+initMap();
+// [END maps_geocoding_reverse]
diff --git a/samples/geocoding-reverse/package.json b/samples/geocoding-reverse/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "@js-api-samples/geocoding-reverse",
+  "version": "1.0.0",
+  "scripts": {
+    "build": "tsc && bash ../jsfiddle.sh geocoding-reverse && bash ../app.sh geocoding-reverse && bash ../docs.sh geocoding-reverse && npm run build:vite --workspace=. && bash ../dist.sh geocoding-reverse",
+    "test": "tsc && npm run build:vite --workspace=.",
+    "start": "tsc && vite build --base './' && vite",
+    "build:vite": "vite build --base './'",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+
+  }
+}
diff --git a/samples/geocoding-reverse/style.css b/samples/geocoding-reverse/style.css
@@ -0,0 +1,46 @@
+/**
+* @license
+* Copyright 2025 Google LLC. All Rights Reserved.
+* SPDX-License-Identifier: Apache-2.0
+*/
+/* [START maps_geocoding_reverse] */
+/*
+* Always set the map height explicitly to define the size of the div element
+* that contains the map.
+*/
+gmp-map {
+    height: 100%;
+}
+
+/*
+* Optional: Makes the sample page fill the window.
+*/
+html,
+body {
+    height: 100%;
+    margin: 0;
+    padding: 0;
+    font-family: Roboto, sans-serif;
+}
+
+#floating-panel {
+    background-color: #fff;
+    border-radius: 5px;
+    box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
+    margin: 10px;
+    padding: 15px;
+    font-family: Roboto, sans-serif;
+    font-size: 1rem;
+}
+
+#latlng {
+    width: 100%;
+    font-family: Roboto, sans-serif;
+    font-size: 1rem;
+    margin-bottom: 4px;
+}
+
+#submit {
+    font-size: 1rem;
+}
+/* [END maps_geocoding_reverse] */
diff --git a/samples/geocoding-reverse/tsconfig.json b/samples/geocoding-reverse/tsconfig.json
@@ -0,0 +1,17 @@
+{
+  "compilerOptions": {
+    "module": "esnext",
+    "target": "esnext",
+    "strict": true,
+    "noImplicitAny": false,
+    "lib": [
+      "es2015",
+      "esnext",
+      "es6",
+      "dom",
+      "dom.iterable"
+    ],
+    "moduleResolution": "Node",
+    "jsx": "preserve"
+  }
+}