Rezensionen zu Orten

Entwickler im Europäischen Wirtschaftsraum (EWR)

Mit Ortsrezensionen können Sie auf Millionen hochwertiger Rezensionen und Bewertungen aus der Places Datenbank zugreifen und sie auf Ihren Webseiten anzeigen.

Vollständigen Quellcode des Beispiels ansehen

In diesem Beispiel werden Ortsdetails einschließlich der ersten Ortsrezension abgerufen und die Informationen in einem Infofenster angezeigt.

TypeScript

let innerMap: google.maps.Map;
let infoWindow: google.maps.InfoWindow;
const mapElement = document.querySelector('gmp-map')!;

async function init() {
    // Import the needed libraries.
    const [{ InfoWindow }, { AdvancedMarkerElement }, { Place }] =
        await Promise.all([
            google.maps.importLibrary('maps'),
            google.maps.importLibrary('marker'),
            google.maps.importLibrary('places'),
        ]);

    innerMap = mapElement.innerMap;

    // Create a new Place instance.
    const place = new Place({
        id: 'ChIJpyiwa4Zw44kRBQSGWKv4wgA', // Faneuil Hall Marketplace, Boston, MA
    });

    // Call fetchFields, passing 'reviews' and other needed fields.
    await place.fetchFields({
        fields: ['displayName', 'formattedAddress', 'location', 'reviews'],
    });

    // Create an HTML container.
    const content = document.createElement('div');
    const title = document.createElement('div');
    const rating = document.createElement('div');
    const address = document.createElement('div');
    const review = document.createElement('div');
    const authorLink = document.createElement('a');

    // If there are any reviews display the first one.
    if (place.reviews && place.reviews.length > 0) {
        // Get info for the first review.
        const reviewRating = place.reviews[0].rating;
        const reviewText = place.reviews[0].text;
        const authorName = place.reviews[0].authorAttribution!.displayName;
        const authorUri = place.reviews[0].authorAttribution!.uri;

        // Safely populate the HTML.
        title.textContent = place.displayName || '';
        address.textContent = place.formattedAddress || '';
        rating.textContent = `Rating: ${reviewRating} stars`;
        review.textContent = reviewText || '';
        authorLink.textContent = authorName;
        authorLink.href = authorUri || '';
        authorLink.target = '_blank';

        content.appendChild(title);
        content.appendChild(address);
        content.appendChild(rating);
        content.appendChild(review);
        content.appendChild(authorLink);
    } else {
        content.textContent = `No reviews were found for ${place.displayName}.`;
    }

    // Create an infoWindow to display the review.
    infoWindow = new InfoWindow({
        content,
        ariaLabel: place.displayName,
    });

    // Add a marker.
    const marker = new AdvancedMarkerElement({
        map: innerMap,
        position: place.location,
        title: place.displayName,
    });

    innerMap.setCenter(place.location!);

    // Show the info window.
    infoWindow.open({
        anchor: marker,
        map: innerMap,
    });
}

void init();

JavaScript

let innerMap;
let infoWindow;
const mapElement = document.querySelector('gmp-map');

async function init() {
    // Import the needed libraries.
    const [{ InfoWindow }, { AdvancedMarkerElement }, { Place }] =
        await Promise.all([
            google.maps.importLibrary('maps'),
            google.maps.importLibrary('marker'),
            google.maps.importLibrary('places'),
        ]);

    innerMap = mapElement.innerMap;

    // Create a new Place instance.
    const place = new Place({
        id: 'ChIJpyiwa4Zw44kRBQSGWKv4wgA', // Faneuil Hall Marketplace, Boston, MA
    });

    // Call fetchFields, passing 'reviews' and other needed fields.
    await place.fetchFields({
        fields: ['displayName', 'formattedAddress', 'location', 'reviews'],
    });

    // Create an HTML container.
    const content = document.createElement('div');
    const title = document.createElement('div');
    const rating = document.createElement('div');
    const address = document.createElement('div');
    const review = document.createElement('div');
    const authorLink = document.createElement('a');

    // If there are any reviews display the first one.
    if (place.reviews && place.reviews.length > 0) {
        // Get info for the first review.
        const reviewRating = place.reviews[0].rating;
        const reviewText = place.reviews[0].text;
        const authorName = place.reviews[0].authorAttribution.displayName;
        const authorUri = place.reviews[0].authorAttribution.uri;

        // Safely populate the HTML.
        title.textContent = place.displayName || '';
        address.textContent = place.formattedAddress || '';
        rating.textContent = `Rating: ${reviewRating} stars`;
        review.textContent = reviewText || '';
        authorLink.textContent = authorName;
        authorLink.href = authorUri || '';
        authorLink.target = '_blank';

        content.appendChild(title);
        content.appendChild(address);
        content.appendChild(rating);
        content.appendChild(review);
        content.appendChild(authorLink);
    } else {
        content.textContent = `No reviews were found for ${place.displayName}.`;
    }

    // Create an infoWindow to display the review.
    infoWindow = new InfoWindow({
        content,
        ariaLabel: place.displayName,
    });

    // Add a marker.
    const marker = new AdvancedMarkerElement({
        map: innerMap,
        position: place.location,
        title: place.displayName,
    });

    innerMap.setCenter(place.location);

    // Show the info window.
    infoWindow.open({
        anchor: marker,
        map: innerMap,
    });
}

void init();

CSS

/* 
 * 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;
}

HTML

<html>
    <head>
        <title>Place Reviews</title>

        <link rel="stylesheet" type="text/css" href="./style.css" />
        <script type="module" src="./index.js"></script>
        <script>
            // prettier-ignore
            (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: "GOOGLE_MAPS_API_KEY"
            });
        </script>
    </head>
    <body>
        <gmp-map
            center="42.349134, -71.083184"
            zoom="14"
            map-id="4504f8b37365c3d0">
        </gmp-map>
    </body>
</html>

Rezensionen für einen Ort abrufen

Wenn Sie Rezensionsdaten für einen Ort abrufen möchten, fügen Sie das reviews Feld in die fetchFields() Anfrageparameter ein. Die resultierende Place-Instanz enthält ein Array von Review Objekten, über die Sie auf die erforderlichen Rezensionsinformationen zugreifen können.

Das folgende Beispiel zeigt eine „Places Details“-Anfrage für Rezensionen. 

// Create a new Place instance.
const place = new Place({
    id: 'ChIJpyiwa4Zw44kRBQSGWKv4wgA', // Faneuil Hall Marketplace, Boston, MA
});

// Call fetchFields, passing 'reviews' and other needed fields.
await place.fetchFields({
    fields: ['displayName', 'formattedAddress', 'location', 'reviews'],
});

// Create an HTML container.
const content = document.createElement('div');
const title = document.createElement('div');
const rating = document.createElement('div');
const address = document.createElement('div');
const review = document.createElement('div');
const authorLink = document.createElement('a');

// If there are any reviews display the first one.
if (place.reviews && place.reviews.length > 0) {
    // Get info for the first review.
    const reviewRating = place.reviews[0].rating;
    const reviewText = place.reviews[0].text;
    const authorName = place.reviews[0].authorAttribution.displayName;
    const authorUri = place.reviews[0].authorAttribution.uri;

    // Safely populate the HTML.
    title.textContent = place.displayName || '';
    address.textContent = place.formattedAddress || '';
    rating.textContent = `Rating: ${reviewRating} stars`;
    review.textContent = reviewText || '';
    authorLink.textContent = authorName;
    authorLink.href = authorUri || '';
    authorLink.target = '_blank';

    content.appendChild(title);
    content.appendChild(address);
    content.appendChild(rating);
    content.appendChild(review);
    content.appendChild(authorLink);
} else {
    content.textContent = `No reviews were found for ${place.displayName}.`;
}

// Create an infoWindow to display the review.
infoWindow = new InfoWindow({
    content,
    ariaLabel: place.displayName,
});

Die Review -Instanz enthält Folgendes:

  • Eine AuthorAttribution
  • Die vom Nutzer vergebene rating.
  • Die publishTime (Datum) und relativePublishTimeDescription (Rezensionszeit relativ zur aktuellen Zeit, z. B. „vor einem Monat“).
  • Den text der Rezension.
  • Den textLanguageCode, der die Sprache angibt, in der die Rezension verfasst wurde.

Verwenden Sie die Eigenschaft Place.rating, um die Gesamtbewertung für den Ort abzurufen. Sie müssen das Feld rating in den Parametern Ihrer fetchFields() Anfrage anfordern.

Autorenangaben

Wenn Sie eine Rezension anzeigen, müssen Sie auch die Autorenangaben für die Rezension anzeigen. Verwenden Sie die AuthorAttribution Klasse, um Autorenangaben zurückzugeben. Eine Autorenangabe enthält den Namen des Autors (displayName), einen URI für sein Google Maps-Profil (uri) und einen URI für das Foto des Autors (photoURI). Das folgende Snippet zeigt, wie die displayName, uri und photoURI für eine Autorenangabe zurückgegeben werden. 

  let authorName = place.reviews[0].authorAttribution!.displayName;
  let authorUri = place.reviews[0].authorAttribution!.uri;
  let authorPhoto = place.reviews[0].authorAttribution!.photoURI;