Opiniones sobre lugares

Consulta el ejemplo de código fuente completo

En este ejemplo, se recuperan los detalles del lugar, incluida la primera opinión, y se muestra la información en una ventana de información.

TypeScript

let map: google.maps.Map;
let centerCoordinates = { lat: 42.349134, lng: -71.083184 }; // Boston, MA
let infoWindow;
let contentString;

async function initMap() {
    const { Map, InfoWindow } = await google.maps.importLibrary('maps') as google.maps.MapsLibrary;
    const { AdvancedMarkerElement } = await google.maps.importLibrary('marker') as google.maps.MarkerLibrary;
    const { Place, Review } = await google.maps.importLibrary('places') as google.maps.PlacesLibrary;

    map = new Map(document.getElementById('map') as HTMLElement, {
        center: centerCoordinates,
        zoom: 14,
        // ...
    });

    // Use a place ID to 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'],
    });

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

        // Format the review using HTML.
        contentString =`
            <div id="title"><b>${place.displayName}</b></div>
            <div id="address">${place.formattedAddress}</div>
            <a href="${authorUri}" target="_blank">Author: ${authorName}</a>
            <div id="rating">Rating: ${reviewRating} stars</div>
            <div id="rating"><p>Review: ${reviewText}</p></div>`;
    } else {
        contentString = 'No reviews were found for ' + place.displayName + '.';
    }

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

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

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

initMap();
index.ts

Nota: Consulta la guía sobre cómo utilizar TypeScript y Google Maps.

JavaScript

let map;
let centerCoordinates = { lat: 42.349134, lng: -71.083184 }; // Boston, MA
let infoWindow;
let contentString;

async function initMap() {
  const { Map, InfoWindow } = await google.maps.importLibrary("maps");
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");
  const { Place, Review } = await google.maps.importLibrary("places");

  map = new Map(document.getElementById("map"), {
    center: centerCoordinates,
    zoom: 14,
    // ...
  });

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

    // Format the review using HTML.
    contentString = `
            <div id="title"><b>${place.displayName}</b></div>
            <div id="address">${place.formattedAddress}</div>
            <a href="${authorUri}" target="_blank">Author: ${authorName}</a>
            <div id="rating">Rating: ${reviewRating} stars</div>
            <div id="rating"><p>Review: ${reviewText}</p></div>`;
  } else {
    contentString = "No reviews were found for " + place.displayName + ".";
  }

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

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

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

initMap();
index.js

Nota: El código JavaScript se genera al compilar el fragmento de TypeScript.

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>Place Reviews</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

Prueba la muestra

JSFiddle.net Google Cloud Shell

Cómo obtener opiniones sobre un lugar

Para obtener datos de opiniones de un lugar, incluye el campo reviews en los parámetros de solicitud fetchFields(). La instancia de Place resultante contiene un array de objetos Review, desde el que puedes acceder a la información de revisión necesaria.

En el siguiente ejemplo, se muestra cómo realizar una solicitud de Place Details para obtener opiniones.

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

  // Format the review using HTML.
  contentString = `
          <div id="title"><b>${place.displayName}</b></div>
          <div id="address">${place.formattedAddress}</div>
          <a href="${authorUri}" target="_blank">Author: ${authorName}</a>
          <div id="rating">Rating: ${reviewRating} stars</div>
          <div id="rating"><p>Review: ${reviewText}</p></div>`;
} else {
  contentString = "No reviews were found for " + place.displayName + ".";
}

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

La instancia de Review contiene lo siguiente:

• Una AuthorAttribution
• El rating que proporcionó el usuario.
• publishTime (fecha) y relativePublishTimeDescription (hora de la opinión en relación con la hora actual, por ejemplo, "hace un mes").
• La revisión text
• El textLanguageCode que indica el idioma en el que está escrita la opinión.

Para obtener la calificación general del lugar, usa la propiedad Place.rating (debes solicitar el campo rating en tus parámetros de solicitud fetchFields()).

Atribuciones de autor

Cuando muestres una opinión, también debes mostrar las atribuciones del autor. Usa la clase AuthorAttribution para mostrar las atribuciones. Una atribución incluye el nombre del autor (displayName), un URI para su perfil de Google Maps (uri) y un URI para su foto (photoURI). En el siguiente fragmento, se muestra cómo mostrar displayName, uri y photoURI para una atribución.

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